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WO1998008699A1 - Viscous heater - Google Patents

Viscous heater Download PDF

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Publication number
WO1998008699A1
WO1998008699A1 PCT/JP1997/000759 JP9700759W WO9808699A1 WO 1998008699 A1 WO1998008699 A1 WO 1998008699A1 JP 9700759 W JP9700759 W JP 9700759W WO 9808699 A1 WO9808699 A1 WO 9808699A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
viscous heater
heat generating
generating chamber
viscous
Prior art date
Application number
PCT/JP1997/000759
Other languages
French (fr)
Japanese (ja)
Inventor
Takashi Ban
Kiyoshi Yagi
Hidefumi Mori
Original Assignee
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP22903496A external-priority patent/JPH09136531A/en
Application filed by Kabushiki Kaisha Toyoda Jidoshokki Seisakusho filed Critical Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
Publication of WO1998008699A1 publication Critical patent/WO1998008699A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24VCOLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
    • F24V40/00Production or use of heat resulting from internal friction of moving fluids or from friction between fluids and moving bodies

Definitions

  • the present invention relates to a viscous heater that generates heat by shearing a viscous fluid, exchanges heat with a circulating fluid circulating in a radiating chamber, and uses the circulating fluid as a heating heat source.
  • a viscous heater used in a vehicle heating device has been disclosed in Japanese Patent Application Laid-Open No. 2-248683.
  • the front and rear housings are fastened with through bolts as opposed to each other to form a heat generating chamber inside and a water jacket outside the heat generating chamber.
  • circulating water is taken in from the inlet port and circulated through the outlet port to the outside heating circuit.
  • a drive shaft is rotatably supported on the front housing via a bearing device, and a rotatable rotor is fixed to the deer glaze.
  • the wall surface of the heating chamber and the outer surface of the rotor form a labyrinth groove that is close to each other, and a viscous fluid such as silicon oil is interposed in the gap between the wall surface of the heating chamber and the outer surface of the rotor.
  • the rotor is fixed to the drive shaft. Therefore, during operation, the rotor tilts with respect to the heating chamber or rotates with a dimensional difference from the heating chamber in the axial direction, so that the outer surface of the rotor easily collides with the wall surface of the heating chamber. .
  • the gap between the wall surface of the heating chamber and the outer surface of the rotor is increased to avoid such interference, the viscous fluid is less likely to be sheared, and the amount of heat generated per rotation of the rotor is reduced.
  • An object of the present invention is to provide a viscous heater capable of preventing the interference between the outer surface of the rotor and the wall surface of the heat generating chamber while securing a large amount of heat generated per rotation of the rotor.
  • the viscous heater according to claim 1 is provided with a housing that internally forms a heat generating chamber and a ripening chamber that circulates a circulating fluid in contact with the heat generating chamber, and is rotatably supported by the housing via a receiving device.
  • Viscous heater having a viscous fluid
  • an interference preventing means for preventing interference between outer peripheral areas is provided between a wall surface of the heat generating chamber and an outer surface of the rotor.
  • the interference preventing means is provided. The interference between the outer peripheral area of the outer surface of the rotor and the outer peripheral castle of the wall surface of the heat generating chamber is prevented.
  • the gap between the wall surface of the heating chamber and the outer surface of the rotor is reduced to some extent so that the viscous fluid is easily sheared in order to improve the amount of heat generated per rotation of the rotor. Can be.
  • the viscous heater according to claim 2 is the viscous heater according to claim 1, wherein the interference preventing means is provided between the front end surface of the rotor and the front wall surface of the heat generating chamber and the rear end surface of the rotor and the rear wall surface of the heat generating chamber. It is a regulating part that is provided in the peripheral region between the two and prevents interference between the peripheral regions by contact.
  • the regulating portion abuts on the inner peripheral region between the outer surface of the rotor and the wall surface of the heat generating chamber, thereby preventing mutual interference between the outer peripheral regions.
  • the regulation part The contact speed is low, and there is no problem such as seizure due to contact.
  • the viscous heater according to claim 3 is the viscous heater according to claim 1, wherein the interference preventing means is provided between the front end surface of the rotor and the front wall surface of the heat generating chamber and the rear end surface of the rotor and the rear wall surface of the heat generating chamber. It is characterized in that it is a regulating portion provided in the outer peripheral region between the two to prevent interference between the outer peripheral regions by contact.
  • the restricting portion abuts on the outer peripheral wall between the outer surface of the rotor and the wall surface of the heat generating chamber to directly prevent interference between the outer peripheral regions.
  • the viscous heater according to claim 4 is the viscous heater according to claim 2 or 3, wherein the housing is provided with a control room that is communicated with a central area of the power generation room, and the control room is connected to the control room when the capacity is reduced.
  • the movement of the viscous fluid is performed at least by the Weissenberg effect of the viscous fluid, and the regulating portion is divided around the axis.
  • the viscous fluid in the heat generating chamber gathers around the axis against the centrifugal force by being rotated at right angles to the liquid surface if the rotor is kept rotated. Move to the control room when the capacity is reduced by the Weissenberg effect. This Weissenberg effect is believed to be caused by the normal stress effect.
  • the viscous heater in the viscous heater, the viscous fluid in the heat generating chamber ⁇ is collected in the control chamber. At this time, since the regulating part is divided around the wick, the regulating part does not prevent the movement of the viscous fluid. Thus, in this viscous heater, the amount of heat generated between the wall surface of the ift chamber and the outer surface of the rotor is reduced, and heating is weakened.
  • a viscous heater according to a fifth aspect is the viscous heater according to the second, third or fourth aspect, wherein the restricting portion is provided so as to project from a housing forming a heat generating chamber.
  • the restricting portion since the restricting portion protrudes from the housing, it is preferable that the end of the restricting portion that abuts and moves on the outer surface of the heater is preferably smooth or forms a heating chamber. Other parts of the skin, for example, can be left as skin. In this case, processing is easy, and the viscous fluid is more likely to be sheared by the rough surface, and the amount of heat generated increases.
  • the viscous heater according to claim 6 is the viscous heater according to claim 2, 3 or 4, wherein the regulating portion is made of a self-lubricating material.
  • the outer surface of the rotor comes into contact with the regulating portion made of a self-lubricating material, and the rotor slides smoothly.
  • the other parts forming the heat generating chamber can be left as, for example, a skin, in this case, the processing is easy, and the viscous fluid is more likely to be sheared by the rough surface, and the heat generation amount is increased. Is added.
  • a detent is provided in the restricting portion, whereby the restricting portion can be prevented from rotating together with the rotor.
  • the viscous heater according to claim 7 is the viscous heater according to claim 6, wherein the self-lubricating material is a fluororesin.
  • a viscous heater according to a seventh aspect is an embodiment of the means according to the sixth aspect. The specific operation will be described in detail in the embodiment.
  • the viscous heater according to claim 8 is the viscous heater according to claim 1, wherein the interference preventing means is provided between the front end surface of the rotor and the front wall surface of the heat generating chamber and the rear end surface of the rotor and the rear wall surface of the heat generating chamber. It is a play gap formed in the outer peripheral area between them to prevent interference between the outer peripheral areas due to separation.
  • the other in the outer peripheral region between the outer surface of the rotor and the wall surface of the heat generating chamber, the other is inconsistent with the outline due to play I ⁇ , thereby preventing interference between the outer peripheral regions.
  • the viscous heater according to claim 9 is characterized in that, in the viscous heater according to claim 8, the play gap is recessed in a housing forming a heat generating chamber.
  • the entire wall surface of the heat generating chamber can be left, for example, with a soft surface.
  • the processing is easy, and the viscous fluid is more likely to be sheared by the rough surface, and the calorific value increases.
  • the viscous heater according to claim 10 is the viscous heater according to claim 1, 2, 3, 4, 5, 6, 7, 8, or 9, wherein the rotor cannot rotate relative to the drive shaft and the shaft of the drive shaft. It is characterized by being fitted to the core so as to be tiltable and axially displaceable. In the viscous heater according to claim 10, when the drive shaft is rotated, the rotor is fitted to the drive shaft so as not to be able to rotate relatively. Heating can be performed by ripening by shearing.
  • the viscous heater according to claim 10 even if the rotor is inclined with respect to the heat generating chamber or the rotor has a dimensional difference in the direction of the heat generating chamber due to a belt tension, a tolerance at the time of manufacturing, or the like.
  • the inclination is absorbed by the rotor being fitted to the axis of the drive shaft so as to be tiltable, and the dimensional difference is absorbed by the rotor being fitted to be displaceable in the axial direction. Therefore, the outer peripheral area of the outer surface of the rotor hardly interferes with the outer peripheral area of the wall surface of the heat generating chamber.
  • the wrinkle between the outer surface of the rotor and the wall surface of the heat generating chamber due to the rotor being inclined with respect to the axis of the drive shaft or being displaced in the axial direction is the interference prevention means according to claim 1 to 9. Avoided by
  • the viscous heater according to each of the claims can prevent the interference between the outer surface of the rotor and the wall surface of the heat generating chamber while securing a large amount of heat generated per rotation of the rotor.
  • FIG. 1 is a longitudinal sectional view of a viscous light according to the first embodiment.
  • FIG. 2 is an enlarged cross-sectional view of a main part of the viscous heater according to the first embodiment.
  • FIG. 3 is an enlarged cross-sectional view of a main part, relating to a viscous heater of a comparative embodiment.
  • FIG. 4 is a cross-sectional view of a viscous heater according to the second embodiment.
  • FIG. 5 is a cross-sectional view of the viscous heater according to the third embodiment.
  • m6 is an enlarged cross-sectional view of a main part, relating to the viscous heater of Embodiment 3.
  • FIG. 7 is an enlarged plan view of a main part of the viscous heater according to the third embodiment.
  • FIG. 8 is an enlarged plan view of a main part of the viscous heater according to the fourth embodiment.
  • FIG. 9 is an enlarged plan view of a main part of the viscous heater according to the fifth embodiment.
  • FIG. 10 is an enlarged plan view of a main part of the viscous heater according to the sixth embodiment.
  • FIG. 11 is an enlarged plan view of a main part of a viscous heater according to a seventh embodiment.
  • the viscous heater according to the first embodiment embodies claims 1, 2 and 5.
  • a front housing 1, a rear plate 2, and a rear housing main body 3 are respectively laminated between a rear plate 2 and a rear housing main body 3 via a gasket 4. It is fastened with a plurality of through bolts 5 in this state.
  • the rear plate 2 and the rear housing main body 3 constitute a rear housing 6.
  • the recess formed in the rear end face of the front housing 1 forms a heat generating chamber 7 together with the flat front end face of the rear plate 2.
  • the inner peripheral area of the rear housing surface of the front housing 1 forming the heating chamber 7 and the rear plate 2 forming the heating chamber 7 In the inner peripheral area of the front end face of the front end, regulating portions 1a and 2a as stagger prevention means are provided in a ring shape so as to face each other. The ends of the regulating portions 1a and 2a are cut smoothly, or the other portions forming the heat generating chamber 7 remain as skin. Therefore, processing is easy.
  • the rear end face of the rear plate 2 and the inner surface of the rear housing body 3 form a rear water jacket RW as a rear heat radiating chamber in which the heat generating chamber is in contact.
  • a water inlet port 8 for taking in circulating water as a circulating fluid from an external heating circuit (not shown) and a water outlet port (not shown) for sending the circulating water to the heating circuit are formed in an outer region on the rear surface of the rear housing body 3 in contact with the outside.
  • the water inlet port 8 and the water outlet port are connected to the rear water jacket RW.
  • a columnar convex portion 2b is protruded in the center region, and a partition wall 2c extending in a radial direction from the convex portion 2b between the inlet port 8 and the outlet port.
  • a partition wall 2c extending in a radial direction from the convex portion 2b between the inlet port 8 and the outlet port.
  • four fins 2d to 2g extending in an arc shape around the convex portion 2b from the vicinity of the water inlet port 8 to the vicinity of the water outlet port are protruded in the axial direction. .
  • the tips of the projections 2 b, the partition walls 2 c and the fins 2 d to 2 g are in contact with the inner surface of the rear housing body 3.
  • the front housing 1 is provided with a shaft seal I 0 and a bearing device 11 in an instantaneous contact with the heat generating chamber 7, and the drive shaft 12 can rotate through the shaft seal device 10 and the bearing device 11. It is supported by At the rear end of the drive shaft 12, a flat rotor 13 rotatable inside the heat generating chamber 7 is press-fitted. Silicon oil as a viscous fluid is filled in the gap between the wall of the heat generating chamber 7 and the outer surface of the rotor 13. Is interposed. A pulley 15 is fixed to the drive shaft 12 by bolts 14, and the pulley 15 is rotated by a belt by the vehicle engine.
  • the drive shaft 12 is easily rotated by the belt tension in a state where the shaft center 0 is inclined from the ideal axis. Also, due to tolerances during manufacturing, the parallelism between the rotor 13 and the heat generating chamber 7 and the dimension in the shelf direction cannot be perfect. However, in this viscous heater, the regulating portions la and 2a abut against the rotor 13 in the inner peripheral area of the heat generating chamber 7, and the center plane S of the rotor 13 and the center plane S 'of the heat generating chamber 7 almost coincide with each other. .
  • the portion excluding the regulating portions 1a and 2a forming the heat generating chamber 7 remains as skin, the silicon oil is more easily sheared by the rough surface, and the amount of ripening is increased.
  • the center plane S of the rotor 13 is made to be the center plane S 'of the heat generating chamber 7 due to the belt tension and the tolerance at the time of manufacture.
  • the rotor 13 is easily rotated while being inclined, and the rotor 13 has an axial dimensional difference from the heat generating chamber 7. For this reason, in this viscous heater, if the clearance between the wall surface of the heat generating chamber 7 and the outer surface of the rotor 13 is reduced to some extent, the outer surface of the rotor 13 will interfere with the wall surface of the heat generating chamber 7.
  • the viscous heater of the first embodiment can prevent the interference between the outer surface of the rotor 13 and the wall surface of the heat generating chamber 7 while securing a large amount of heat generated per rotation of the rotor 13. Heating capacity and durability can be exhibited.
  • an electromagnetic clutch may be used in place of the pulley 15 to perform the kneading operation of the drive shaft 12.
  • the viscous heater according to the second embodiment is embodied in claims 1, 3, 6, and 7.
  • a ring shape is formed in the outer peripheral area of the rear end face of the front housing 1 forming the heat generating chamber 7 and the outer peripheral area of the front ground of the rear plate 2 forming the heat generating chamber 7.
  • the PTFE regulating portions 20 and 21 are embedded as separate members.
  • the rear ends of the restricting portions 20 and 21 are fixed to the front housing 1 and the rear plate 2, respectively, and the front ends thereof project smoothly in the facing directions.
  • Other parts forming the heating chamber 7 remain as skin.
  • Other configurations are the same as those of the first embodiment.
  • the outer surface of the rotor 13 has a restricting portion made of PTFE.
  • the viscous heater according to the third embodiment is embodied in claims 1, 2, 4, 5, and 10.
  • an outer spline 12 a is formed at the rear end of the drive shaft 12, and the outer spline 12 a is attached to the inner spline 1 of the rotor 13.
  • the rotor 13 cannot rotate relative to the drive shaft 12 and can be displaced in the oblique and axial directions with respect to the shaft center 0 of the drive shaft 12. Mated.
  • regulating portions la and 2a (2a not shown) projecting from the front housing 1 and the rear plate 2 are divided around the axis 0.
  • the rear plate 2 is formed in an annular shape having a communication hole 2 h in the center area, and an annular rib is formed in the inner center area of the rear housing body 3.
  • the diaphragm 4a is integrally provided so as to allow 2 hours, and an adjusting screw 16 provided at the center of the rear housing body 3 can be brought into contact with the rear surface of the diaphragm 4a.
  • a control chamber 17 communicating with the central area of the heating chamber 7 is formed in front of the diaphragm 4a.
  • Other configurations are the same as those of the first embodiment.
  • the calorific value of the display between the wall surface of the heat generating chamber 7 and the outer surface of the roof 13 is reduced, and the heating is weakened.
  • this capacity is reduced, the silicon oil between the front wall surface of the power generation chamber 7 and the front side surface of the rotor 13 is easily collected in the control room 17 through the communication hole 13b.
  • the adjusting screw 16 is screwed in by a desired length, and the diaphragm 4a is displaced forward to reduce the internal volume of the control room 17.
  • This allows The silicone oil in the control room 17 is sent out into the heat generation room 7.
  • the regulation sections la and 2a do not prevent the movement of the silicon oil.
  • the amount of heat generated between the wall surface of the heat generating chamber 7 and the outer surface of the rotor 13 is increased, and heating is enhanced.
  • the silicon oil in the control room 17 is easily sent out between the front wall surface of the heat generation chamber 7 and the front surface of the rotor 13.
  • the capacity control is reliably performed, and it is possible to prevent a decrease in the heat generation efficiency after the durability.
  • the rotor 13 is inclined with respect to the axis 0 or displaced in the axial direction, and the outer peripheral area of the outer surface of the rotor 13 and the outer peripheral area of the wall surface of the heat generating chamber 7
  • the contact is controlled by the silicon oil that remains reliably due to the Diesenberg effect that acts on the central area of the restrictors 1a and 2s and between them.
  • Other functions and effects are the same as those of the first embodiment.
  • the viscous heater of the fourth embodiment of the present invention embodies claims 1 and 2.
  • restricting portions 13c and 13d are protruded from the inner peripheral region of the front and rear end surfaces of the rotor 13.
  • Other configurations are the same as those of the first embodiment.
  • Embodiment 5 embodies claims 1, 2, 6, and 7.
  • regulating portions 18 and 19 are interposed as separate members in the inner peripheral region between the wall surface of the heat generating chamber 7 and the outer surface of the mouthpiece 13.
  • These restricting sections 18 and 19 are made of PTF E because they do not shear silicon oil but prevent interference by abutment and movement.
  • Other configurations are the same as those of the first embodiment.
  • a viscous heater according to a sixth embodiment embodies claims 1, 8 to 10.
  • the rear end face of the front housing 1 forming the heat generating chamber 7 and the front end face of the rear plate 2 forming the heat generating chamber 7 are formed as tapered surfaces 1b and 2i which spread outwardly, so that a clearance is formed in the outer peripheral area between the two. Has formed.
  • Other configurations are the same as those of the third embodiment.
  • the tapered surfaces 1b and 2i are formed on the front housing 1 and the rear plate 2, so that if it is manufactured with high precision, the entire wall surface of the heat generating chamber 7 is left as a skin. I can put it. As a result, the silicon oil is more likely to be sheared by the rough surface, and the calorific value increases. Other functions and effects are the same as those of the third embodiment.
  • the viscous heater according to the seventh embodiment is embodied in claims 1 and 8.
  • the front and rear surfaces of the rotor 13 are formed as inwardly extending taper surfaces 13e and 13f, thereby providing an outer peripheral region between them.
  • the play is formed.
  • Other configurations are the same as in Embodiment 1.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

A viscous heater which is capable of preventing the interference of an outer surface of a rotor with a wall surface of a heating chamber while keeping adequate that generation per revolution of the rotor. To form such a viscous heater, restriction portions (1a, 2a) are provided as interference preventing means so as to annularly protect in the opposed direction on an inner circumferential region of a rear end surface of a front housing (1) which defines a heating chamber (7), and on an inner circumferential region of a front end surface of a rear plate (2) which defines the heating chamber (7). The interference preventing means may also be provided by forming the rear end surface of the front housing (1), which defines the heating chamber (7), and the front end surface of the rear plate (2) which defines the heating chamber (7), outwardly divergently in cross section to form clearances on the outer circumferential regions of these end surfaces.

Description

明細書  Specification
ビスカスヒータ  Viscous heater
技術分野  Technical field
本発明は、 粘性流体をせん断により発熱させ、 放熱室内を循環する循環流体に 熱交換して暖房熱源に利用するビスカスヒータに関する。  The present invention relates to a viscous heater that generates heat by shearing a viscous fluid, exchanges heat with a circulating fluid circulating in a radiating chamber, and uses the circulating fluid as a heating heat source.
背景技術  Background art
従来、 特開平 2 - 2 4 6 8 2 3号公報に車両用暖房装置に利用されるビスカス ヒータが開示されている。 このビスカスヒータでは、 前部及び後部ハウジングが 対設された状想で通しボルトにより締結され、 内部に発熱室と、 この発熱室の外 域にウォータジャケッ トとを形成している。 ウォータジャケッ ト内では循環水が 入水ポー卜から取り入れられ、 出水ポー卜から外部の暖房回路へ送り出されるべ く循環されている。 前部ハウジングには軸受装置を介して駆動軸が回動可能に支 承され、 鹿動釉には発熱室内で回勐可能なロータが固定されている。 発熱室の壁 面とロータの外面とは互いに近接するラビリンス溝を構成し、 これら発熱室の壁 面とロータの外面との間隙にはシリコンオイル等の粘性流体が介在される。  2. Description of the Related Art Conventionally, a viscous heater used in a vehicle heating device has been disclosed in Japanese Patent Application Laid-Open No. 2-248683. In this viscous heater, the front and rear housings are fastened with through bolts as opposed to each other to form a heat generating chamber inside and a water jacket outside the heat generating chamber. In the water jacket, circulating water is taken in from the inlet port and circulated through the outlet port to the outside heating circuit. A drive shaft is rotatably supported on the front housing via a bearing device, and a rotatable rotor is fixed to the deer glaze. The wall surface of the heating chamber and the outer surface of the rotor form a labyrinth groove that is close to each other, and a viscous fluid such as silicon oil is interposed in the gap between the wall surface of the heating chamber and the outer surface of the rotor.
車両の暖房装置に組み込まれたこのビスカスヒータでは、 粗動 ttがェンジンに より艇動されれば、 発熱室内でロータが回勳するため、 粘性流体が発熱室の壁面 とロータの外面との間隙でせん断により発熱する。 この発熱はウォータジャケッ ト内の循環水に熱交換され、 加熱された循環水が暖房回路で車両の暖房に供され ることとなる。  In this viscous heater incorporated in the vehicle heating system, if the coarse motion tt is moved by the engine, the rotor revolves in the heating chamber, and viscous fluid flows between the wall of the heating chamber and the outer surface of the rotor. Generates heat by shearing. This heat is exchanged with the circulating water in the water jacket, and the heated circulating water is used for heating the vehicle in the heating circuit.
しかし、 上記従来のビスカスヒータでは、 ロータの 1回転当たりの発熱量を向 上させると、 ロータの外面が発熱室の壁面と干渉しやすいことが明らかとなった。 すなわち、 この種のビスカスヒータでは、 連転時において、 エンジンの回転数 の変化等に起因し、 電磁クラッチのブーリ又は駆動軸に直結されたブーリに不可 避的にベルトテンションが作用する。 このため、 駆動軸は理想軸から不可避的に 傾斜した状想で K動されることとなる。 また、 製造時の公差等から、 駆動軸と口 一夕との直角度、 ロータと発熱室との平行度及びロータと発熱室との軸方向の寸 法は、 完全なものとはなり得ない。  However, in the above-described conventional viscous heater, it has been clarified that, when the amount of heat generated per rotation of the rotor is increased, the outer surface of the rotor easily interferes with the wall surface of the heat generating chamber. That is, in this type of viscous heater, during continuous rotation, belt tension inevitably acts on the bully of the electromagnetic clutch or the bully directly connected to the drive shaft due to a change in the engine speed or the like. For this reason, the drive shaft is K-moved in an inevitably inclined state from the ideal axis. Also, due to manufacturing tolerances, the perpendicularity between the drive shaft and the mouth, the parallelism between the rotor and the heating chamber, and the axial dimension between the rotor and the heating chamber cannot be perfect. .
したがって、 上記従来のビスカスヒータでは、 ロータが駆動軸に固定されてい るため、 運転時において、 ロータが発熱室に対して傾斜したり、 発熱室と軸方向 に寸法差を有したりしたまま回動し、 ロータの外面が発熱室の壁面と千渉しやす い。 一方、 かかる干渉を回避すべく、 発熱室の壁面とロータの外面との間隙を拡 大すると、 粘性流体がせん断されにく くなるため、 ロータの 1回転当たりの発熱 量が低下してしまう。 Therefore, in the above conventional viscous heater, the rotor is fixed to the drive shaft. Therefore, during operation, the rotor tilts with respect to the heating chamber or rotates with a dimensional difference from the heating chamber in the axial direction, so that the outer surface of the rotor easily collides with the wall surface of the heating chamber. . On the other hand, if the gap between the wall surface of the heating chamber and the outer surface of the rotor is increased to avoid such interference, the viscous fluid is less likely to be sheared, and the amount of heat generated per rotation of the rotor is reduced.
本発明の課題は、 ロータの 1回転当たりの発熱量を大きく確保しつつ、 ロータ の外面と発熱室の壁面との干渉を防止可能なビスカスヒータを提供することにあ る。  An object of the present invention is to provide a viscous heater capable of preventing the interference between the outer surface of the rotor and the wall surface of the heat generating chamber while securing a large amount of heat generated per rotation of the rotor.
課題を解決するための手段  Means for solving the problem
請求項 1のビスカスヒータは、 内部に発熱室及び該発熱室に I»接して循環流体 を循環させる放熟室を形成するハウジングと、 該ハウジングに賴受装置を介して 回動可能に支承された駆動軸と、 該発熱室内で該 ffi動軸により回動可能に設けら れたロー夕と、 該発熱室の壁面と該ロータの外面との間隙に介在され、 該ロータ の回動により発熱される粘性流体とを有するビスカスヒータにおいて、  The viscous heater according to claim 1 is provided with a housing that internally forms a heat generating chamber and a ripening chamber that circulates a circulating fluid in contact with the heat generating chamber, and is rotatably supported by the housing via a receiving device. A driving shaft, a rotor rotatably provided in the heat generating chamber by the ffi drive shaft, and a gap interposed between a wall surface of the heat generating chamber and an outer surface of the rotor, and heat generated by the rotation of the rotor. Viscous heater having a viscous fluid
前記発熱室の壁面と前記ロータの外面との間には、 相互の外周域の干渉を防止 する干渉防止手段が設けられていることを特微とする。  It is characterized in that an interference preventing means for preventing interference between outer peripheral areas is provided between a wall surface of the heat generating chamber and an outer surface of the rotor.
請求項 1のビスカスヒータでは、 ベルトテンションゃ製造時の公差等により、 ロータが発熱室に対して傾斜したり、 ロータが発熱室と軸方向に寸法差を有して いても、 干渉防止手段がロータの外面のうちの外周域と発熱室の壁面のうちの外 周城との干渉を防止する。  In the viscous heater according to claim 1, even if the rotor is inclined with respect to the heat generating chamber due to a belt tension, a tolerance at the time of manufacture, or the rotor has a dimensional difference from the heat generating chamber in the axial direction, the interference preventing means is provided. The interference between the outer peripheral area of the outer surface of the rotor and the outer peripheral castle of the wall surface of the heat generating chamber is prevented.
このため、 請求項 1のビスカスヒータでは、 ロータの 1回転当たりの発熱量を 向上させるベく、 粘性流体がせん断されやすいように発熱室の壁面とロータの外 面との間隙をある程度縮小することができる。  For this reason, in the viscous heater according to claim 1, the gap between the wall surface of the heating chamber and the outer surface of the rotor is reduced to some extent so that the viscous fluid is easily sheared in order to improve the amount of heat generated per rotation of the rotor. Can be.
請求項 2のビスカスヒータは、 講求項 1記載のビスカスヒータにおいて、 干渉 防止手段は、 ロータの前端面と発熱室の前壁面との間及び該ロータの後端面と該 発熱室の後壁面との間の內周域に設けられ、 当接により相互の外周域の干渉を防 止する規制部であることを特徴とする。  The viscous heater according to claim 2 is the viscous heater according to claim 1, wherein the interference preventing means is provided between the front end surface of the rotor and the front wall surface of the heat generating chamber and the rear end surface of the rotor and the rear wall surface of the heat generating chamber. It is a regulating part that is provided in the peripheral region between the two and prevents interference between the peripheral regions by contact.
請求項 2のビスカスヒータでは、 規制部がロータの外面と発熱室の壁面との内 周域において当接し、 相互の外周域の干渉を防止する。 このとき、 規制部は内周 域で当接するため、 速度が小さく、 当接による焼付き等の不具合は生じない。 請求項 3のビスカスヒータは、 請求項 1記載のビスカスヒー夕において、 干渉 防止手段は、 ロータの前端面と発熱室の前壁面との間及び該ロータの後端面と該 発熱室の後壁面との間の外周域に設けられ、 当接により相互の外周域の干渉を防 止する規制部であることを特徵とする。 In the viscous heater according to the second aspect, the regulating portion abuts on the inner peripheral region between the outer surface of the rotor and the wall surface of the heat generating chamber, thereby preventing mutual interference between the outer peripheral regions. At this time, the regulation part The contact speed is low, and there is no problem such as seizure due to contact. The viscous heater according to claim 3 is the viscous heater according to claim 1, wherein the interference preventing means is provided between the front end surface of the rotor and the front wall surface of the heat generating chamber and the rear end surface of the rotor and the rear wall surface of the heat generating chamber. It is characterized in that it is a regulating portion provided in the outer peripheral region between the two to prevent interference between the outer peripheral regions by contact.
¾求項 3のビスカスヒータでは、 規制部がロータの外面と発熱室の壁面との外 周城において当接し、 相互の外周域の干渉を直接的に防止する。  In the viscous heater according to claim 3, the restricting portion abuts on the outer peripheral wall between the outer surface of the rotor and the wall surface of the heat generating chamber to directly prevent interference between the outer peripheral regions.
諳求項 4のビスカスヒータは、 請求項 2又は 3記載のビスカスヒータにおいて、 ハウジングには、 発煞室の中央域と連通される制御室が配設され、 能力縮小時に おける該制御室内への粘性流体の移動は、 少なくとも該粘性流体のワイセンベル ク効果により行われ、 規制部は軸芯回りに分割されていることを特徴とする。 請求項 4のビスカスヒータでは、 発熱室内の粘性流体は、 ロータが回動された ままであれば、 液面と直角に回動されることで、 遠心力に逆らって軸芯回りに集 合するワイセンベルク効果 (W e i s s e n b e r g E f f e c t ) により、 能力縮小時における制御室内への移動を行う。 このワイセンベルク効果は法線応 力効果により生じると考えられている。 これにより、 このビスカスヒータでは、 発熱室內の粘性流体が制御室内に回収される。 このとき、 規制部が韈芯回りに分 割されているため、 規制部が粘性流体の移動を阻止することはない。 こうして、 このビスカスヒータでは、 発 ift室の壁面とロータの外面との間 の発熱量が減少 し、 暖房が弱められることとなる。  The viscous heater according to claim 4 is the viscous heater according to claim 2 or 3, wherein the housing is provided with a control room that is communicated with a central area of the power generation room, and the control room is connected to the control room when the capacity is reduced. The movement of the viscous fluid is performed at least by the Weissenberg effect of the viscous fluid, and the regulating portion is divided around the axis. In the viscous heater according to claim 4, the viscous fluid in the heat generating chamber gathers around the axis against the centrifugal force by being rotated at right angles to the liquid surface if the rotor is kept rotated. Move to the control room when the capacity is reduced by the Weissenberg effect. This Weissenberg effect is believed to be caused by the normal stress effect. Thus, in the viscous heater, the viscous fluid in the heat generating chamber 內 is collected in the control chamber. At this time, since the regulating part is divided around the wick, the regulating part does not prevent the movement of the viscous fluid. Thus, in this viscous heater, the amount of heat generated between the wall surface of the ift chamber and the outer surface of the rotor is reduced, and heating is weakened.
請求項 5のビスカスヒータは、 請求項 2、 3又は 4記載のビスカスヒータにお いて、 規制部は発熱室を形成するハウジングに突設されていることを特徴とする。 請求項 5のビスカスヒータでは、 規制部をハウジングに突設しているため、 口 ータの外面と当接 ·指動する規制部の先 ¾は平滑にすることが好ましいか、 発熱 室を形成する他の部位を例えば鏟肌のままにしておくことができる。 この場合、 加工が容易であるとともに、 粘性流体が粗面によってよりせん断されやすく、 発 熱量が増加する。  A viscous heater according to a fifth aspect is the viscous heater according to the second, third or fourth aspect, wherein the restricting portion is provided so as to project from a housing forming a heat generating chamber. In the viscous heater according to the fifth aspect, since the restricting portion protrudes from the housing, it is preferable that the end of the restricting portion that abuts and moves on the outer surface of the heater is preferably smooth or forms a heating chamber. Other parts of the skin, for example, can be left as skin. In this case, processing is easy, and the viscous fluid is more likely to be sheared by the rough surface, and the amount of heat generated increases.
靖求項 6のビスカスヒータは、 請求項 2、 3又は 4記載のビスカスヒータにお いて、 規制部は自己潤滑性材料からなることを特徴とする。 請求項 6のビスカスヒータでは、 ロータの外面か自己潤滑性材料からなる規制 部と当接 動することとなり、 ロータが滑らかに摺勖する。 また、 発熱室を形 成する他の部位を例えば铸肌のままにしておくことができるため、 この場合には、 加工が容易であるとともに、 粘性流体が粗面によってよりせん断されやすく、 発 熱量が增加する。 The viscous heater according to claim 6 is the viscous heater according to claim 2, 3 or 4, wherein the regulating portion is made of a self-lubricating material. In the viscous heater according to the sixth aspect, the outer surface of the rotor comes into contact with the regulating portion made of a self-lubricating material, and the rotor slides smoothly. In addition, since the other parts forming the heat generating chamber can be left as, for example, a skin, in this case, the processing is easy, and the viscous fluid is more likely to be sheared by the rough surface, and the heat generation amount is increased. Is added.
ここで、 規制部に回り止めを設け、 これにより規制部をロータと連れ回り不能 にすることができる。 かかる回り止めを設けず、 規制部をロータと連れ回り可能 にする場合には、 規制部自体の摩耗による劣化を防止できる。  Here, a detent is provided in the restricting portion, whereby the restricting portion can be prevented from rotating together with the rotor. When the restricting portion is made rotatable with the rotor without providing such a detent, deterioration due to wear of the restricting portion itself can be prevented.
»求項 7のビスカスヒータは、 請求項 6記載のビスカスヒータにおいて、 自己 溷滑性材料はフッ素樹脂であることを特徴とする。  »The viscous heater according to claim 7 is the viscous heater according to claim 6, wherein the self-lubricating material is a fluororesin.
請求項 7のビスカスヒータは、 請求項 6の手段を具体化したものである。 その 具体的作用は実施形態において詳述する。  A viscous heater according to a seventh aspect is an embodiment of the means according to the sixth aspect. The specific operation will be described in detail in the embodiment.
請求項 8のビスカスヒータは、 請求項 1記載のビスカスヒータにおいて、 干渉 防止手段は、 ロータの前端面と発熱室の前壁面との間及び該ロータの後端面と該 発熱室の後壁面との間の外周域に形成され、 離反により相互の外周域の干渉を防 止する遊隙であることを特徴とする。  The viscous heater according to claim 8 is the viscous heater according to claim 1, wherein the interference preventing means is provided between the front end surface of the rotor and the front wall surface of the heat generating chamber and the rear end surface of the rotor and the rear wall surface of the heat generating chamber. It is a play gap formed in the outer peripheral area between them to prevent interference between the outer peripheral areas due to separation.
請求項 8のビスカスヒータでは、 ロータの外面と発熱室の壁面との外周域にお いて他方が遊 I©により讎反し、 相互の外周域の干渉を防止する。  In the viscous heater according to the eighth aspect, in the outer peripheral region between the outer surface of the rotor and the wall surface of the heat generating chamber, the other is inconsistent with the outline due to play I ©, thereby preventing interference between the outer peripheral regions.
請求項 9のビスカスヒータは、 講求項 8記載のビスカスヒータにおいて、 遊隙 は発熱室を形成するハウジングに凹設されていることを特徵とする。  The viscous heater according to claim 9 is characterized in that, in the viscous heater according to claim 8, the play gap is recessed in a housing forming a heat generating chamber.
請求項 9のビスカスヒータでは、 遊嚓をハウジングに凹設しているため、 発熱 室の壁面全部を例えば銪肌のままにしておくことができる。 この場合、 加工が容 易であるとともに、 粘性流体が粗面によってよりせん断されやすく、 発熱量が增 加する。  In the viscous heater according to the ninth aspect, since the play is recessed in the housing, the entire wall surface of the heat generating chamber can be left, for example, with a soft surface. In this case, the processing is easy, and the viscous fluid is more likely to be sheared by the rough surface, and the calorific value increases.
請求項 1 0のビスカスヒータは、 請求項 1、 2、 3、 4、 5、 6、 7、 8又は 9記載のビスカスヒータにおいて、 ロータは駆勳軸に相対回動不能かつ該駆動軸 の軸芯に対して傾斜及び軸方向の変位可能に嵌合されていることを特徴とする。 請求項 1 0のビスカスヒータでは、 駆動軸が回動されれば、 ロータが駆動軸に 相対回動不能に嵌合されているため、 発熱室内でロータが回動され、 粘性流体の せん断による発熟で暖房を行なうことができる。 The viscous heater according to claim 10 is the viscous heater according to claim 1, 2, 3, 4, 5, 6, 7, 8, or 9, wherein the rotor cannot rotate relative to the drive shaft and the shaft of the drive shaft. It is characterized by being fitted to the core so as to be tiltable and axially displaceable. In the viscous heater according to claim 10, when the drive shaft is rotated, the rotor is fitted to the drive shaft so as not to be able to rotate relatively. Heating can be performed by ripening by shearing.
また、 請求項 1 0のビスカスヒータでは、 ベルトテンションゃ製造時の公差等 により、 ロータが発熱室に対して饧斜したり、 ロータが発熱室と轴方向に寸法差 を有していても、 ロータが駆動軸の軸芯に対して傾斜可能に嵌合されていること によりこの傾斜を吸収し、 かつロータが軸方向に変位可能に嵌合されていること によりこの寸法差を吸収する。 このため、 ロータの外面のうちの外周域が発熱室 の壁面のうちの外周域と一層干渉しにく くなる。  Further, in the viscous heater according to claim 10, even if the rotor is inclined with respect to the heat generating chamber or the rotor has a dimensional difference in the direction of the heat generating chamber due to a belt tension, a tolerance at the time of manufacturing, or the like. The inclination is absorbed by the rotor being fitted to the axis of the drive shaft so as to be tiltable, and the dimensional difference is absorbed by the rotor being fitted to be displaceable in the axial direction. Therefore, the outer peripheral area of the outer surface of the rotor hardly interferes with the outer peripheral area of the wall surface of the heat generating chamber.
また、 ロータが駆勐軸の翱芯に対して傾斜し、 又は軸方向に変位することによ るロータの外面と発熱室の壁面との接皴は、 請求項 1〜 9記載の干渉防止手段に より回避される。  The wrinkle between the outer surface of the rotor and the wall surface of the heat generating chamber due to the rotor being inclined with respect to the axis of the drive shaft or being displaced in the axial direction is the interference prevention means according to claim 1 to 9. Avoided by
以上詳述したように、 各請求項のビスカスヒータは、 ロータの 1回転当たりの 発熱量を大きく確保しつつ、 ロータの外面と発熱室の壁面との干渉を防止可能で める。  As described in detail above, the viscous heater according to each of the claims can prevent the interference between the outer surface of the rotor and the wall surface of the heat generating chamber while securing a large amount of heat generated per rotation of the rotor.
したがって、 このビスカスヒータは、 優れた暖房能力と耐久性とを発揮するこ とができる。 図面の簡単な説明  Therefore, this viscous heater can exhibit excellent heating capacity and durability. BRIEF DESCRIPTION OF THE FIGURES
図 1は実施形想 1のビスカスヒー夕の縱断面図である。  FIG. 1 is a longitudinal sectional view of a viscous light according to the first embodiment.
図 2は実施形想 1のビスカスヒータに係り、 要部拡大断面図である。  FIG. 2 is an enlarged cross-sectional view of a main part of the viscous heater according to the first embodiment.
3は比較形態のビスカスヒータに係り、 要部拡大断面図である。  FIG. 3 is an enlarged cross-sectional view of a main part, relating to a viscous heater of a comparative embodiment.
図 4は実施形想 2のビスカスヒータの紲断面図である。  FIG. 4 is a cross-sectional view of a viscous heater according to the second embodiment.
図 5は実施形想 3のビスカスヒータの 断面図である。  FIG. 5 is a cross-sectional view of the viscous heater according to the third embodiment.
m 6は実施形態 3のビスカスヒータに係り、 要部拡大断面図である。  m6 is an enlarged cross-sectional view of a main part, relating to the viscous heater of Embodiment 3.
図 7は実施形想 3のビスカスヒータに係り、 要部拡大平面図である。  FIG. 7 is an enlarged plan view of a main part of the viscous heater according to the third embodiment.
図 8は実施形想 4のビスカスヒータに係り、 要部拡大平面図である。  FIG. 8 is an enlarged plan view of a main part of the viscous heater according to the fourth embodiment.
図 9は実施形態 5のビスカスヒータに係り、 要部拡大平面図である。  FIG. 9 is an enlarged plan view of a main part of the viscous heater according to the fifth embodiment.
図 1 0は実施形態 6のビスカスヒータに係り、 要部拡大平面図である。  FIG. 10 is an enlarged plan view of a main part of the viscous heater according to the sixth embodiment.
図 1 1は実施形想 7のビスカスヒータに係り、 要部拡大平面図である。 発明を実施するための最良の形想 FIG. 11 is an enlarged plan view of a main part of a viscous heater according to a seventh embodiment. BEST MODE FOR CARRYING OUT THE INVENTION
以下、 各諸求項記載の発明を具体化した実施形想 1〜 7を図面を参照しつつ説 明する。  Hereinafter, embodiments 1 to 7 that embody the invention described in each claim will be described with reference to the drawings.
(実施形想 1 )  (Implementation concept 1)
実施形想 1のビスカスヒータは請求項 1、 2、 5を具体化している。  The viscous heater according to the first embodiment embodies claims 1, 2 and 5.
このビスカスヒータでは、 図 1に示すように、 前部ハウジング 1、 後部プレー ト 2及び後部ハウジング本体 3が後部プレート 2と後部ハウジング本体 3との間 にガスケッ ト 4を介し、 各々穑層された状態で複数本の通しボルト 5により締結 されている。 ここで、 後部プレート 2及び後部ハウジング本体 3が後部ハウジン グ 6を構成している。 そして、 前部ハウジング 1の後端面に凹設された凹部は後 部ブレート 2の平坦な前端面とともに発熱室 7を形成している。  In this viscous heater, as shown in FIG. 1, a front housing 1, a rear plate 2, and a rear housing main body 3 are respectively laminated between a rear plate 2 and a rear housing main body 3 via a gasket 4. It is fastened with a plurality of through bolts 5 in this state. Here, the rear plate 2 and the rear housing main body 3 constitute a rear housing 6. The recess formed in the rear end face of the front housing 1 forms a heat generating chamber 7 together with the flat front end face of the rear plate 2.
ここで、 このビスカスヒータの特微的な構成として、 図 2に示すように、 発熱 室 7を形成する前部ハウジング 1の後蜴面の内周域と、 発熱室 7を形成する後部 プレート 2の前端面の内周域とには、 千涉防止手段としての規制部 1 a、 2 aが それぞれ対面する方向にリング状に突設されている。 規制部 1 a、 2 aの先端は 平滑に切削されているか、 発熱室 7を形成する他の部位は銪肌のままである。 こ のため、 加工が容易である。  Here, as a special configuration of this viscous heater, as shown in FIG. 2, the inner peripheral area of the rear housing surface of the front housing 1 forming the heating chamber 7 and the rear plate 2 forming the heating chamber 7 In the inner peripheral area of the front end face of the front end, regulating portions 1a and 2a as stagger prevention means are provided in a ring shape so as to face each other. The ends of the regulating portions 1a and 2a are cut smoothly, or the other portions forming the heat generating chamber 7 remain as skin. Therefore, processing is easy.
また、 図 1に示すように、 後部プレート 2の後端面と後部ハウジング本体 3の 内面とが発熱室マに雜接する後部放熱室としての後部ゥォータジャケッ ト R Wを 形成している。 後部ハウジング本体 3の後面の外域には、 外部の図示しない暖房 回路から循環流体としての循環水を取り入れる入水ポー卜 8と、 循環水を暖房回 路へ送り出す図示しない出水ポートとが 接して形成され、 入水ポート 8と出水 ポー卜とは後部ウォータジャケッ ト RWに連通されている。  As shown in FIG. 1, the rear end face of the rear plate 2 and the inner surface of the rear housing body 3 form a rear water jacket RW as a rear heat radiating chamber in which the heat generating chamber is in contact. A water inlet port 8 for taking in circulating water as a circulating fluid from an external heating circuit (not shown) and a water outlet port (not shown) for sending the circulating water to the heating circuit are formed in an outer region on the rear surface of the rear housing body 3 in contact with the outside. The water inlet port 8 and the water outlet port are connected to the rear water jacket RW.
後部プレート 2の後端面では中央域に円柱状の凸部 2 bが突設され、 入水ポー ト 8と出水ポー卜との間には凸部 2 bから一径方向に延在する隔壁 2 cが突設さ れている。 また、 後部プレート 2の後端面では、 入水ポート 8近傍から出水ポー ト近傍まで凸部 2 b回りに円弧状に延在する 4条のフィン 2 d〜2 gが軸方向に 突設されている。 これら凸部 2 b、 隔壁 2 c及び各フィン 2 d〜2 gの先端は後 部ハウジング本体 3の内面と当接されている。 また、 前部ハウジング 1には発熱室 7に瞬接して軸封装 I 0及び軸受装置 1 1が設けられ、 これら軸封装置 1 0及び軸受装置 1 1を介して駆動軸 1 2が回動 可能に支承されている。 駆動軸 1 2の後端には発熱室 7内で回動可能な平板形状 のロータ 1 3が圧入され、 発熱室 7の壁面とロータ 1 3の外面との間隙には粘性 流体としてのシリコンオイルが介在されている。 駆動軸 1 2の先靖にはボルト 1 4によりプーリ 1 5が固定され、 プーリ 1 5は車両のエンジンによりベルトで回 転されるようになっている。 On the rear end face of the rear plate 2, a columnar convex portion 2b is protruded in the center region, and a partition wall 2c extending in a radial direction from the convex portion 2b between the inlet port 8 and the outlet port. Are protruding. Also, on the rear end face of the rear plate 2, four fins 2d to 2g extending in an arc shape around the convex portion 2b from the vicinity of the water inlet port 8 to the vicinity of the water outlet port are protruded in the axial direction. . The tips of the projections 2 b, the partition walls 2 c and the fins 2 d to 2 g are in contact with the inner surface of the rear housing body 3. In addition, the front housing 1 is provided with a shaft seal I 0 and a bearing device 11 in an instantaneous contact with the heat generating chamber 7, and the drive shaft 12 can rotate through the shaft seal device 10 and the bearing device 11. It is supported by At the rear end of the drive shaft 12, a flat rotor 13 rotatable inside the heat generating chamber 7 is press-fitted. Silicon oil as a viscous fluid is filled in the gap between the wall of the heat generating chamber 7 and the outer surface of the rotor 13. Is interposed. A pulley 15 is fixed to the drive shaft 12 by bolts 14, and the pulley 15 is rotated by a belt by the vehicle engine.
車両の暖房装 ®に組み込まれたこのビスカスヒータでは、 駆動 tt l 2がプーリ 1 5を介してエンジンにより駆動されれば、 ロータ 1 3が駆動軸 1 2に相対回動 不能に圧入されているため、 発熱室 7内でロータ 1 3が回動し、 シリコンオイル が発熱室 7の壁面とロータ 1 3の外面との間隙でせん断により発熱する。 この発 熱は後部ウォー夕ジャケット RW內の循環水に熱交換され、 加熱された循環水が 暖房回路で車両の ft房に供されることとなる。  In this viscous heater incorporated in the heating device of the vehicle, when the drive ttl 2 is driven by the engine via the pulley 15, the rotor 13 is press-fitted into the drive shaft 12 so that it cannot rotate relatively. Therefore, the rotor 13 rotates in the heat generating chamber 7, and silicon oil generates heat by shearing in a gap between the wall surface of the heat generating chamber 7 and the outer surface of the rotor 13. This heat is exchanged with the circulating water in the rear warmer jacket RW 、, and the heated circulating water is supplied to the ft chamber of the vehicle in the heating circuit.
このとき、 このビスカスヒータにおいても、 図 2に示すように、 ベルトテンシ ヨンにより軸芯 0が理想軸から傾斜した状想で駆動軸 1 2が回動されやすい。 ま た、 製造時の公差等により、 ロータ 1 3と発熱室 7との平行度及び棚方向の寸法 は完全なものとはなり得ない。 しかし、 このビスカスヒータでは、 規制部 l a、 2 aが発熱室 7の内周域においてロータ 1 3に当接し、 ロータ 1 3の中心面 Sと 発熱室 7の中心面 S ' とがほぼ一致する。 こう して、 このビスカスヒータでは、 ロータ 1 3の外面のうちの外周域と発熱室 7の壁面のうちの外周域との干渉が防 止されている。 このとき、 規制部 1 a、 2 aは発熱室 7の内周域でロータ 1 3に 当接するため、 速度が小さく、 当接による焼付き等の不具合は生じない。  At this time, also in this viscous heater, as shown in FIG. 2, the drive shaft 12 is easily rotated by the belt tension in a state where the shaft center 0 is inclined from the ideal axis. Also, due to tolerances during manufacturing, the parallelism between the rotor 13 and the heat generating chamber 7 and the dimension in the shelf direction cannot be perfect. However, in this viscous heater, the regulating portions la and 2a abut against the rotor 13 in the inner peripheral area of the heat generating chamber 7, and the center plane S of the rotor 13 and the center plane S 'of the heat generating chamber 7 almost coincide with each other. . Thus, in this viscous heater, interference between the outer peripheral area of the outer surface of the rotor 13 and the outer peripheral area of the wall surface of the heat generating chamber 7 is prevented. At this time, since the restricting portions 1a and 2a abut on the rotor 13 in the inner peripheral area of the heat generating chamber 7, the speed is low, and problems such as seizure due to the abutment do not occur.
このため、 このビスカスヒータでは、 ロータ 1 3の 1回転当たりの発熱量を向 上させるべく、 シリコンオイルがせん断されやすいように発熱室 7の壁面とロー タ 1 3の外面との間睐をある程度縮小することができる。  For this reason, in this viscous heater, in order to increase the amount of heat generated per rotation of the rotor 13, the gap between the wall surface of the heat generating chamber 7 and the outer surface of the rotor 13 is somewhat increased so that silicon oil is easily sheared. Can be reduced.
また、 発熱室 7を形成する規制部 1 a、 2 aを除く部位は鍊肌のままであるた め、 シリコンオイルが粗面によってよりせん断されやすく、 発熟量が増加してい る。  In addition, since the portion excluding the regulating portions 1a and 2a forming the heat generating chamber 7 remains as skin, the silicon oil is more easily sheared by the rough surface, and the amount of ripening is increased.
これに対し、 図 3に示すように、 前部ハウジング 1と後部プレート 2とに干渉 防止手段としての規制部 1 a、 2 aを突設しない比較形想のビスカスヒータでは、 ベルトテンションゃ製造時の公差等により、 ロータ 1 3の中心面 Sが発熱室 7の 中心面 S ' と傾斜したまま、 かつロータ 1 3が発熱室 7と軸方向の寸法差を有し たまま、 ロータ 1 3が回動されやすい。 このため、 このビスカスヒータでは、 発 熱室 7の壁面とロータ 1 3の外面との間除をある程度縮小すれば、 ロータ 1 3の 外面が発熱室 7の壁面と干渉してしまう。 On the other hand, as shown in Fig. 3, the front housing 1 and the rear plate 2 In the comparative type viscous heater without the restricting parts 1a and 2a as preventive means, the center plane S of the rotor 13 is made to be the center plane S 'of the heat generating chamber 7 due to the belt tension and the tolerance at the time of manufacture. The rotor 13 is easily rotated while being inclined, and the rotor 13 has an axial dimensional difference from the heat generating chamber 7. For this reason, in this viscous heater, if the clearance between the wall surface of the heat generating chamber 7 and the outer surface of the rotor 13 is reduced to some extent, the outer surface of the rotor 13 will interfere with the wall surface of the heat generating chamber 7.
したがって、 実施形態 1のビスカスヒータは、 ロー夕 1 3の 1回転当たりの発 熱量を大きく確保しつつ、 ロータ 1 3の外面と発熱室 7の壁面との干渉を防止可 能であり、 侵れた暖房能力と耐久性とを発揮することができる。  Therefore, the viscous heater of the first embodiment can prevent the interference between the outer surface of the rotor 13 and the wall surface of the heat generating chamber 7 while securing a large amount of heat generated per rotation of the rotor 13. Heating capacity and durability can be exhibited.
なお、 プーリ 1 5の代わりに電磁クラッチを用いて駆動軸 1 2の斷練 動を行 つてもよい。  Note that an electromagnetic clutch may be used in place of the pulley 15 to perform the kneading operation of the drive shaft 12.
(実施形想 2 )  (Implementation concept 2)
実施形想 2のビスカスヒータは請求項 1、 3、 6、 7を具体化している。  The viscous heater according to the second embodiment is embodied in claims 1, 3, 6, and 7.
このビスカスヒータでは、 図 4に示すように、 発熱室 7を形成する前部ハウジ ング 1の後端面の外周域と、 発熱室 7を形成する後部ブレート 2の前地面の外周 域とにリング状の P T F E製の規制部 2 0、 2 1が別部材として埋設されている。 各規制部 2 0、 2 1の後端はそれぞれ前部ハウジング 1と後部プレート 2とに回 り止めされており、 それらの先端はそれぞれ対面する方向に平滑に突出されてい る。 発熱室 7を形成する他の部位は鋅肌のままである。 他の構成は実施形態 1と 同一である。  In this viscous heater, as shown in FIG. 4, a ring shape is formed in the outer peripheral area of the rear end face of the front housing 1 forming the heat generating chamber 7 and the outer peripheral area of the front ground of the rear plate 2 forming the heat generating chamber 7. The PTFE regulating portions 20 and 21 are embedded as separate members. The rear ends of the restricting portions 20 and 21 are fixed to the front housing 1 and the rear plate 2, respectively, and the front ends thereof project smoothly in the facing directions. Other parts forming the heating chamber 7 remain as skin. Other configurations are the same as those of the first embodiment.
このビスカスヒータにおいては、 ロータ 1 3の外面が P T F Eからなる規制部 In this viscous heater, the outer surface of the rotor 13 has a restricting portion made of PTFE.
2 0 , 2 1 と当接 ·摺勖することとなり、 ロータ 1 3が滑らかに指動する。 他の 作用及び効果は実施形態 1と同様である。 As a result, the rotor 13 comes into contact with 20 and 21 and slides smoothly. Other functions and effects are the same as those of the first embodiment.
(実施形想 3 )  (Implementation concept 3)
実施形想 3のビスカスヒータは請求項 1、 2、 4、 5、 1 0を具体化している。 このビスカスヒータでは、 図 5に示すように、 駆動軸 1 2の後端に外スプライ ン 1 2 aが形成され、 この外スプライン 1 2 aにはロータ 1 3の内スプライン 1 The viscous heater according to the third embodiment is embodied in claims 1, 2, 4, 5, and 10. In this viscous heater, as shown in FIG. 5, an outer spline 12 a is formed at the rear end of the drive shaft 12, and the outer spline 12 a is attached to the inner spline 1 of the rotor 13.
3 aが嵌合されている。 こうして、 ロータ 1 3は、 図 6に示すように、 駆動軸 1 2に相対回動不能かつ駆動軸 1 2の軸芯 0に対して領斜及び軸方向の変位可能に 嵌合されている。 3a is mated. Thus, as shown in FIG. 6, the rotor 13 cannot rotate relative to the drive shaft 12 and can be displaced in the oblique and axial directions with respect to the shaft center 0 of the drive shaft 12. Mated.
また、 図 7に示すように、 前部ハウジング 1 と後部プレート 2とに突設された 規制部 l a、 2 a ( 2 aは図示せず) は軸芯 0回りに分割されている。  Further, as shown in FIG. 7, regulating portions la and 2a (2a not shown) projecting from the front housing 1 and the rear plate 2 are divided around the axis 0.
さらに、 図 5に示すように、 ロータ 1 3の中央域に前後に貫通する祓数個の連 通孔 1 3 bが貫設されている。 また、 後部プレート 2が中央域に連通孔 2 hを有 する環状に形成されており、 後部ハゥジング本体 3の内部中央域には環状のリブ Further, as shown in FIG. 5, several communication holes 13b are formed in the center area of the rotor 13 so as to penetrate therethrough. The rear plate 2 is formed in an annular shape having a communication hole 2 h in the center area, and an annular rib is formed in the inner center area of the rear housing body 3.
3 aが軸方向に突設されている。 また、 ガスケッ ト 4が後部プレート 2の連通孔3a protrudes in the axial direction. In addition, gasket 4
2 hを ¾うべくダイアフラム 4 aを一体に有し、 後部ハウジング本体 3の中心に 設けられた調整ねじ 1 6がダイアフラム 4 aの後面と当接可能になされている。 こうして、 ダイアフラム 4 aの前方には発熱室 7の中央域と連通する制御室 1 7 が形成されている。 他の構成は実施形 « 1と同様である。 The diaphragm 4a is integrally provided so as to allow 2 hours, and an adjusting screw 16 provided at the center of the rear housing body 3 can be brought into contact with the rear surface of the diaphragm 4a. Thus, a control chamber 17 communicating with the central area of the heating chamber 7 is formed in front of the diaphragm 4a. Other configurations are the same as those of the first embodiment.
このビスカスヒータでは、 ベルトテンションや製造時の公差等により、 ロータ With this viscous heater, the rotor is not controlled due to belt tension and manufacturing tolerance.
1 3が発熱室 7に対して傾斜したり、 ロータ 1 3が発熱室 7と軸方向に寸法差を 有していても、 ロータ 1 3が軸芯 0に対して僳斜可能に嵌合されていることによ りこの傾斜を吸収し、 かつロータ 1 3が軸方向に変位可能に嵌合されていること によりこの寸法差を吸収する。 このため、 ロータ 1 3の外面のうちの外周域が発 熱室 7の壁面のうちの外周域とー餍干渉しにく くなつている。 Even if the rotor 13 is inclined with respect to the heating chamber 7 or the rotor 13 has a dimensional difference in the axial direction with respect to the heating chamber 7, the rotor 13 is fitted to the shaft core 0 so that it can be inclined. This allows the inclination to be absorbed, and the dimensional difference is absorbed by the rotor 13 being fitted so as to be displaceable in the axial direction. For this reason, the outer peripheral area of the outer surface of the rotor 13 hardly interferes with the outer peripheral area of the wall surface of the heat generating chamber 7.
また、 このビスカスヒータでは、 ロータ 1 3が回動されたままであれば、 暖房 が過強である場合、 発熱室 7内のシリコンオイルは、 ワイセンベルク効果により ダイアフラム 4 aを後方に変位させて制御室 1 7の内部容稜を拡大する。 この制 御室 1 7の内部容穰の拡大はダイアフラム 4 aの後面が調整ねじ 1 6の先端に当 接するまで行われる。 これにより、 発熱室 7内のシリコンオイルが制御室 1 7内 に回収される。 このとき、 規制部 l a、 2 aが勑芯 0回りに分割されているため、 規制部 l a、 2 aがシリコンオイルの移動を阻止することはない。 このため、 発 熱室 7の壁面とロー夕 1 3の外面との閟陳の発熱量が減少し、 暖房が弱められる こととなる。 この能力縮小の際、 発鼽室 7の前壁面とロータ 1 3の前側面との間 のシリコンオイルは連通孔 1 3 bを経て制御室 1 7に回収されやすい。  Further, in this viscous heater, if the rotor 13 is kept rotating, if the heating is excessive, the silicon oil in the heat generating chamber 7 displaces the diaphragm 4 a backward by the Weissenberg effect to control the control chamber. 17 Enlarge the inner ridge. The expansion of the inside of the control room 17 is performed until the rear surface of the diaphragm 4 a comes into contact with the tip of the adjusting screw 16. As a result, the silicone oil in the heating chamber 7 is collected in the control chamber 17. At this time, since the restricting portions la and 2a are divided around the axis 0, the restricting portions la and 2a do not prevent the movement of the silicone oil. For this reason, the calorific value of the display between the wall surface of the heat generating chamber 7 and the outer surface of the roof 13 is reduced, and the heating is weakened. When this capacity is reduced, the silicon oil between the front wall surface of the power generation chamber 7 and the front side surface of the rotor 13 is easily collected in the control room 17 through the communication hole 13b.
逆に、 暖房が過弱である場合、 調整ねじ 1 6を所望長さだけねじ込み、 ダイァ フラム 4 aを前方に変位させて制御室 1 7の内部容糗を縮小する。 これにより、 制御室 1 7内のシリコンオイルは発熱室 7内に送り出される。 このときも、 規制 部 l a、 2 aがシリコンオイルの移動を阻止することはない。 このため、 発熱室 7の壁面とロータ 1 3の外面との間睐の発熱量が増大し、 暖房が強められること となる。 この能力拡大の際も、 制御室 1 7内のシリ コンオイルが発熱室 7の前壁 面とロータ 1 3の前側面との間に送り出されやすい。 Conversely, when the heating is too weak, the adjusting screw 16 is screwed in by a desired length, and the diaphragm 4a is displaced forward to reduce the internal volume of the control room 17. This allows The silicone oil in the control room 17 is sent out into the heat generation room 7. At this time, the regulation sections la and 2a do not prevent the movement of the silicon oil. For this reason, the amount of heat generated between the wall surface of the heat generating chamber 7 and the outer surface of the rotor 13 is increased, and heating is enhanced. Even when the capacity is expanded, the silicon oil in the control room 17 is easily sent out between the front wall surface of the heat generation chamber 7 and the front surface of the rotor 13.
したがって、 このビスカスヒータは、 能力制御が確実に行われ、 耐久後の発熱 効率の低下を防止できる。 そして、 このビスカスヒータでは、 ロータ 1 3が軸芯 0に対して傾斜し、 又は軸方向に変位することによるロータ 1 3の外面のうちの 外周域と発熱室 7の壁面のうちの外周域との接触は、 規制部 1 a、 2 s及び両者 の間睇の中央域に作用するヮィセンベルク効果で確実に残留するシリコンオイル によって回 Sされている。 他の作用及び効果は実施形態 1 と同様である。  Therefore, in this viscous heater, the capacity control is reliably performed, and it is possible to prevent a decrease in the heat generation efficiency after the durability. In this viscous heater, the rotor 13 is inclined with respect to the axis 0 or displaced in the axial direction, and the outer peripheral area of the outer surface of the rotor 13 and the outer peripheral area of the wall surface of the heat generating chamber 7 The contact is controlled by the silicon oil that remains reliably due to the Diesenberg effect that acts on the central area of the restrictors 1a and 2s and between them. Other functions and effects are the same as those of the first embodiment.
(実施形想 4 )  (Implementation concept 4)
実施形旌 4のビスカスヒータは請求項 1、 2を具体化している。  The viscous heater of the fourth embodiment of the present invention embodies claims 1 and 2.
このビスカスヒータでは、 図 8に示すように、 ロータ 1 3の前後端面の内周域 に規制部 1 3 c、 1 3 dを突設している。 他の構成は実施形態 1 と同一である。  In this viscous heater, as shown in FIG. 8, restricting portions 13c and 13d are protruded from the inner peripheral region of the front and rear end surfaces of the rotor 13. Other configurations are the same as those of the first embodiment.
このビスカスヒータにおいても、 実施形 « 1と同様の作用及び効果を奏するこ とができる。  Also in this viscous heater, the same operation and effect as the first embodiment can be obtained.
(実施形 » 5 )  (Implementation form »5)
実施形想 5のビスカスヒータは請求項 1、 2、 6、 7を具体化している。  The viscous heater of Embodiment 5 embodies claims 1, 2, 6, and 7.
このビスカスヒータでは、 図 9に示すように、 発熱室 7の壁面と口一タ 1 3の 外面との間の内周域に別部材として規制部 1 8、 1 9を介在させている。 これら の規制部 1 8、 1 9は、 シリコンオイルをせん断するものではなく、 当接 · ί!動 により干渉を防止するものであるため、 P T F E製としている。 他の構成は実施 形態 1と同一である。  In this viscous heater, as shown in FIG. 9, regulating portions 18 and 19 are interposed as separate members in the inner peripheral region between the wall surface of the heat generating chamber 7 and the outer surface of the mouthpiece 13. These restricting sections 18 and 19 are made of PTF E because they do not shear silicon oil but prevent interference by abutment and movement. Other configurations are the same as those of the first embodiment.
このビスカスヒータにおいても、 実施形態 1と同様の作用及び効果を奏するこ とができる。  Also in this viscous heater, the same operation and effect as in the first embodiment can be obtained.
(実施形 » 6 )  (Implementation form »6)
実旎形想 6のビスカスヒータは請求項 1、 8〜 1 0を具体化している。  A viscous heater according to a sixth embodiment embodies claims 1, 8 to 10.
このビスカスヒータでは、 図 1 0に示すように、 干渉防止手段として、 発熱室 7を形成する前部ハウジング 1の後端面と、 発熱室 7を形成する後部ブレー卜 2 の前端面とを外広がりのテーパ面 1 b、 2 i とし、 これにより両者の外周域に遊 隙を形成している。 他の構成は実施形態 3と同一である。 In this viscous heater, as shown in FIG. The rear end face of the front housing 1 forming the heat generating chamber 7 and the front end face of the rear plate 2 forming the heat generating chamber 7 are formed as tapered surfaces 1b and 2i which spread outwardly, so that a clearance is formed in the outer peripheral area between the two. Has formed. Other configurations are the same as those of the third embodiment.
このビスカスヒータでは、 テーパ面 1 b、 2 iを前部ハウジング 1及び後部プ レート 2に形成することとしているため、 高精度に铸造すれば、 発熱室 7の壁面 全部を銪肌のままにしておくことができる。 このため、 シリコンオイルが粗面に よってよりせん断されやすく、 発熱量が増加している。 他の作用及び効果は実施 形態 3と同様である。  In this viscous heater, the tapered surfaces 1b and 2i are formed on the front housing 1 and the rear plate 2, so that if it is manufactured with high precision, the entire wall surface of the heat generating chamber 7 is left as a skin. I can put it. As a result, the silicon oil is more likely to be sheared by the rough surface, and the calorific value increases. Other functions and effects are the same as those of the third embodiment.
(実施形想 7 )  (Implementation 7)
実施形想 7のビスカスヒータは請求項 1、 8を具体化している。  The viscous heater according to the seventh embodiment is embodied in claims 1 and 8.
このビスカスヒータでは、 図 1 1に示すように、 干渉防止手段として、 ロータ 1 3の前後雠面を内広がりのテ一バ面 1 3 e、 1 3 f とし、 これにより両者の外 周域に遊睐を形成している。 他の構成は実施形想 1と同一である。  In this viscous heater, as shown in Fig. 11, as the means for preventing interference, the front and rear surfaces of the rotor 13 are formed as inwardly extending taper surfaces 13e and 13f, thereby providing an outer peripheral region between them. The play is formed. Other configurations are the same as in Embodiment 1.
このビスカスヒータにおいても、 実施形態 1、 6と同様の作用及び効果を奏す ることができる。  Also in this viscous heater, the same operation and effect as those of the first and sixth embodiments can be obtained.

Claims

請求の範囲 The scope of the claims
1 . 内部に発熱室及び該発熱室に瞬接して循環流体を循環させる放熱室を形成 するハウジングと、 該ハウジングに軸受装置を介して回動可能に支承された駆動 軸と、 該発熱室内で該駆動! Aにより回勐可能に設けられたロータと、 該発熱室の 壁面と該ロータの外面との間隙に介在され、 該ロータの回勖により発熱される粘 性流体とを有するビスカスヒータにおいて、  1. A housing that forms a heat generating chamber and a heat radiating chamber that circulates a circulating fluid in instantaneous contact with the heat generating chamber, a drive shaft rotatably supported by the housing via a bearing device, The drive! A viscous heater having a rotor provided so as to be able to rotate by A, and a viscous fluid interposed in a gap between a wall surface of the heat generating chamber and an outer surface of the rotor and heated by the rotation of the rotor,
前記発熱室の壁面と前記ロータの外面との間には、 相互の外周域の干渉を防止 する干渉防止手段が設けられていることを特徼とするビスカスヒータ。  A viscous heater characterized in that interference prevention means for preventing interference between outer peripheral regions is provided between a wall surface of the heat generating chamber and an outer surface of the rotor.
2 . 干渉防止手段は、 ロータの前端面と発熱室の前壁面との間及び該ロータの 後端面と該発熟室の後壁面との間の内周域に設けられ、 当接により相互の外周域 の干渉を防止する規制部であることを特徵とする請求項 1記載のビスカスヒータ。  2. Interference prevention means are provided in the inner peripheral area between the front end face of the rotor and the front wall face of the heat generating chamber and between the rear end face of the rotor and the rear wall face of the ripening chamber. 2. The viscous heater according to claim 1, wherein the viscous heater is a regulating portion for preventing interference in an outer peripheral region.
3 . 干渉防止手段は、 ロータの前端面と発熱室の前壁面との間及び該ロータの 後端面と該発熱室の後壁面との間の外周域に設けられ、 当接により相互の外周域 の干渉を防止する規制部であることを特微とする諳求項 1記載のビスカスヒータ。  3. Interference prevention means are provided in the outer peripheral area between the front end face of the rotor and the front wall surface of the heat generating chamber and in the outer peripheral area between the rear end face of the rotor and the rear wall face of the heat generating chamber. 3. The viscous heater according to claim 1, characterized in that the viscous heater is a regulating unit for preventing interference.
4 . ハウウジングには、 発熱室の中央域と連通される制御室が配設され、 能力 縮小時における該制御室内への粘性流体の移動は、 少なくとも該粘性流体のワイ センベルク効果により行われ、 規制部は軸芯回りに分割されていることを特徴と する諳求項 2又は 3記載のビスカスヒー夕。  4. The housing is provided with a control room that communicates with the central area of the heating chamber. When the capacity is reduced, the movement of the viscous fluid into the control room is performed at least by the Weissenberg effect of the viscous fluid. 4. The viscous horn according to claim 2 or 3, wherein the part is divided around the axis.
5 . 規制部は発熱室を形成するハウジングに突設されていることを特徴とする 請求項 2、 3又は 4記載のビスカスヒータ。  5. The viscous heater according to claim 2, 3 or 4, wherein the restricting portion is provided so as to protrude from a housing forming the heat generating chamber.
6 . 規制部は自己潤滑性材料からなることを特徵とする筘求項 2、 3又は 4記 載のビスカスヒータ。  6. The viscous heater according to claim 2, 3 or 4, wherein the regulating section is made of a self-lubricating material.
7 . 自己潤滑性材料はフッ素樹脂であることを特徴とする請求項 6記載のビス カスヒータ。  7. The viscous heater according to claim 6, wherein the self-lubricating material is a fluororesin.
8 . 干渉防止手段は、 ロータの前端面と発熱室の前壁面との間及び該ロータの 後端面と該発熱室の後壁面との間の外周域に形成され、 簾反により相互の外周域 の千渉を防止する遊隙であることを特 aとする講求項 1記載のビスカスヒータ。  8. Interference prevention means are formed in the outer peripheral area between the front end face of the rotor and the front wall surface of the heat generating chamber and between the rear end face of the rotor and the rear wall face of the heat generating chamber. The viscous heater according to claim 1, which is characterized in that it is a play space for preventing a collision.
9 . 遊隙は発熱室を形成するハウジングに凹設されていることを特徵とする請 求項 8記載のビスカスヒータ。 9. The viscous heater according to claim 8, wherein the play gap is recessed in a housing forming the heat generating chamber.
1 0 . ロータは駆動軸に相対回動不能かつ該駆動軸の軸芯に対して傾斜及び軸 方向の変位可能に嵌合されていることを特徴とする請求項 1、 2、 3、 4、 5、 6、 7、 8又は 9記載のビスカスヒータ。 10. The rotor according to claim 1, wherein the rotor is fitted to the drive shaft such that the rotor cannot rotate relative to the drive shaft and the rotor can be inclined and displaced in the axial direction with respect to the axis of the drive shaft. The viscous heater described in 5, 6, 7, 8 or 9.
PCT/JP1997/000759 1996-08-29 1997-03-11 Viscous heater WO1998008699A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8/229034 1996-08-29
JP22903496A JPH09136531A (en) 1995-09-11 1996-08-29 Viscous heater

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Publication Number Publication Date
WO1998008699A1 true WO1998008699A1 (en) 1998-03-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7018640B2 (en) 1995-06-07 2006-03-28 Pfizer Incorporated In ovo vaccination against coccidiosis

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02246823A (en) * 1989-03-21 1990-10-02 Aisin Seiki Co Ltd Heating system for vehicle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02246823A (en) * 1989-03-21 1990-10-02 Aisin Seiki Co Ltd Heating system for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7018640B2 (en) 1995-06-07 2006-03-28 Pfizer Incorporated In ovo vaccination against coccidiosis

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