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WO2018124360A1 - Ensemble soupape à structure d'accouplement de ressort de rappel améliorée - Google Patents

Ensemble soupape à structure d'accouplement de ressort de rappel améliorée Download PDF

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Publication number
WO2018124360A1
WO2018124360A1 PCT/KR2017/000144 KR2017000144W WO2018124360A1 WO 2018124360 A1 WO2018124360 A1 WO 2018124360A1 KR 2017000144 W KR2017000144 W KR 2017000144W WO 2018124360 A1 WO2018124360 A1 WO 2018124360A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylindrical cam
rotary gear
return spring
valve assembly
insertion hole
Prior art date
Application number
PCT/KR2017/000144
Other languages
English (en)
Korean (ko)
Inventor
조형근
Original Assignee
주식회사 코렌스
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
Application filed by 주식회사 코렌스 filed Critical 주식회사 코렌스
Publication of WO2018124360A1 publication Critical patent/WO2018124360A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/66—Lift valves, e.g. poppet valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/66—Lift valves, e.g. poppet valves
    • F02M26/67—Pintles; Spindles; Springs; Bearings; Sealings; Connections to actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/66—Lift valves, e.g. poppet valves
    • F02M26/68—Closing members; Valve seats; Flow passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/72—Housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/52—Mechanical actuating means with crank, eccentric, or cam
    • F16K31/524—Mechanical actuating means with crank, eccentric, or cam with a cam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/52—Mechanical actuating means with crank, eccentric, or cam
    • F16K31/524—Mechanical actuating means with crank, eccentric, or cam with a cam
    • F16K31/52408—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a lift valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing

Definitions

  • the present invention relates to a valve assembly for elevating the valve seat by converting the rotational motion of the rotary gear into a linear motion of the poppet shaft by using a cylindrical cam, and more particularly to assemble a return spring for applying an upward elastic force to the rotary gear It relates to a valve assembly configured to simplify the process and to ensure that the return spring is stably held.
  • the exhaust gas of an automobile is a gas in which fuel is compressed and expanded to high temperature and high pressure in a cylinder, and then discharged into the atmosphere through an exhaust manifold.
  • Most of these exhaust gases are water vapor and carbon dioxide, and other harmful substances such as carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx) are included.
  • Exhaust Gas Recirculation System is a means of reducing nitrogen oxides in the exhaust gas, which returns part of the exhaust gas back to the intake manifold to lower the combustion temperature when the mixer is combusted to reduce NOx.
  • an exhaust gas recirculation valve (hereinafter referred to as an "EGR valve") is installed between the exhaust manifold and the intake manifold to open and close the passage only by the control of the EGR valve only in rotations other than idle and warm up. It will not operate before idle and warm up, but will open the EGR valve to recirculate some of the exhaust gas into the engine's intake manifold in response to the amount of throttle valve opening at rotations other than idle and warm up, thus minimizing the reduction in engine output as much as possible. Lowers the temperature to reduce the emissions of NOx.
  • the conventional EGR valve configured as described above is configured to change the rotational movement into a linear motion by using a fixed cylindrical cam.
  • Such a conventional EGR valve has only a lifting motion in the vertical direction when the valve seat opens and closes a passage. Rather than the rotational movement, there is a problem that the wear of the valve seat is increased and thus the opening and closing reliability is lowered.
  • a valve assembly (Korean Patent No. 10-1604415) configured to lift and not rotate when the valve seat opens and closes a passage has been filed and registered by the applicant of the present invention. have.
  • FIG. 1 is a perspective view of a conventional valve assembly.
  • a conventional valve assembly includes a rotary gear 10 having a polygonal hole 11 formed on a central axis in a vertical axis rotated in a vertical axis by a force applied from the outside, and the polygonal hole (
  • a cylindrical cam 20 having a polygonal head 22 inserted into the upper surface 11 and a slide groove 21 inclined obliquely on an outer circumferential surface thereof, and a poppet shaft penetrating through a rotation center of the cylindrical cam 20 30, a valve seat 40 coupled to the lower side of the poppet shaft 30, a housing (not shown) surrounding the cylindrical cam 20, and one side of the sliding groove 21 in the structure Is inserted into the other side is configured to include a bearing unit 60 fixedly coupled to the housing.
  • the polygonal head 22 provided on the upper side of the cylindrical cam 20 is produced in a slightly smaller size than the polygonal hole 11 of the rotary gear 10, the cylindrical cam 20 is a rotary gear 10 Is rotated integrally with the rotary gear 10 when it is rotated, but when receiving the lifting force from the outside it is possible to maintain the state coupled to the rotary gear 10 and to independently raise or lower. That is, when the rotary gear 10 is rotated while the polygonal head 22 is inserted into the polygonal hole 11 and one side of the bearing unit 60 is inserted into the slide groove 21, the cylindrical cam 20 is also It rotates with the rotary gear 10, one side of the bearing unit 60 is to slide along the longitudinal direction of the slide groove (21).
  • the valve assembly according to the present invention thus performs only one operation of the cylindrical cam 20 by rotating or lifting. Rather, it is characterized in that it is configured to move the poppet shaft 30 and the valve seat 40 coupled thereto in a vertical direction while simultaneously implementing the rotation and lifting.
  • the poppet shaft 30 is manufactured in a rod shape (circular rod shape) having a circular cross section so as to be rotated independently of the cylindrical cam 20, and thus can be lifted and integrated with the cylindrical cam 20.
  • the stepped portion is formed at the stop of the portion inserted into the cylindrical cam 20, and is configured to be equipped with a disk-shaped flange at a point corresponding to the upper surface of the cylindrical cam 20. Therefore, when the cylindrical cam 20 is lifted while rotating, the poppet shaft 30 and the valve seat 40 coupled thereto are only lifted along the cylindrical cam 20 without being rotated.
  • the lower side of the rotary gear 10 is provided with a return spring 71 for applying an upward elastic force to the rotary gear 10, until the rotary gear 10 is assembled, the rotary gear 10 and the return spring (71). ) Is separated separately, so that the rotary gear 10 and the return spring 71 must be individually transported to the assembly line.
  • the rotary gear 10 when the rotary gear 10 is assembled to the cylindrical cam 20, the rotary gear 10 should be transferred in the direction in which the return spring 71 is compressed.
  • the upper end of the cylindrical cam 20 is simply a rotary gear.
  • the rotary gear 10 When coupled to the structure inserted into the polygonal hole (11) of the (10) when the external force for pressing down the rotary gear 10 is released by the restoring force of the return spring 71 the rotary gear 10 is upward There is a problem that the assembly with the cylindrical cam 20 is released by moving.
  • the present invention has been proposed to solve the above problems, the return spring can be maintained coupled to the rotary gear before assembling the rotary gear to the cylindrical cam, the convenience of the assembly process is improved, the cylindrical cam It is an object of the present invention to provide a valve assembly in which the upper end of the cylindrical cam is not released from the rotary gear when the upper end is inserted into the rotary gear, thereby significantly reducing the assembly failure rate.
  • the valve assembly with improved rotation gear operation is rotated to the axis of rotation in the vertical center axis by a force applied from the outside, non-circular (non-circular) on the center axis
  • a rotary gear having an insertion hole formed therein;
  • a cylindrical cam having an upper end inserted into the insertion hole and being rotatably integrated with the rotary gear, and having two or more inclined slide grooves formed on an outer circumferential surface thereof;
  • the cylindrical cam and the lifting is made integrally so that the rotation can be made independently, the poppet shaft penetrating the rotation axis of the cylindrical cam;
  • a valve seat coupled to the lower side of the poppet shaft;
  • a housing surrounding a bottom and a side of the cylindrical cam;
  • Two or more bearing units one side of which is fixedly coupled to the housing and the other side of which is inserted into each slide groove in a slidable structure;
  • a cover having a pressing protrusion extending downward in a portion corresponding to an upper surface of the rotary
  • the mounting hook is formed so that the upper end side is convex.
  • An insertion tube extending downward to be inserted into the housing is formed at a portion where the insertion hole is formed among the bottom surface of the rotary gear, and an insertion column is inserted into the insertion hole at an upper side of the cylindrical cam.
  • At least one locking jaw protruding outward is provided at an upper end of the pillar, and a fastening hook protruding inwardly is provided at the lower end of the inner circumferential surface of the insertion hole.
  • the upper surface of the locking step is formed to be inclined downward toward the outside, the bottom surface of the fastening hook is formed to be inclined upward toward the outside.
  • An incision groove is formed in a portion where the fastening hook is formed among the lower ends of the insertion tube.
  • the cross section of the cutting groove is formed in an arc shape along the circumferential direction of the insertion tube.
  • the valve assembly according to the present invention can maintain a state in which the return spring is coupled to the rotary gear before assembling the rotary gear to the cylindrical cam, so that the assembly is very easy, and the upper end of the cylindrical cam is inserted into the rotary gear. Since the upper end of the cylindrical cam does not easily fall out of the rotating gear, the assembly failure rate is very low.
  • FIG. 1 is a perspective view of a conventional valve assembly.
  • FIG. 2 is a cross-sectional perspective view showing the internal structure of the valve assembly according to the present invention.
  • 3 and 4 are a perspective view and a bottom perspective view showing a shape in which the return springs span the rotary gears.
  • 5 and 6 are a perspective view and a bottom perspective view showing a shape in which torque is applied to the return spring so that the return spring is removed from the mounting hook.
  • FIG. 7 is an exploded perspective view of the rotary gear and the cylindrical cam.
  • FIG. 8 is a cross-sectional view showing a coupling structure of a rotary gear and a cylindrical cam.
  • Figure 2 is a cross-sectional perspective view showing the internal structure of the valve assembly according to the present invention
  • Figures 3 and 4 are a perspective view and a bottom perspective view showing the shape of the return spring to the rotary gear
  • Figures 5 and 6 return A perspective view and a bottom perspective view showing a shape in which torque is applied to the spring to remove the return spring from the mounting hook.
  • the valve assembly using the cylindrical cam 200 according to the present invention is a device for elevating the valve seat 400 by converting the rotational force transmitted from the outside into a linear feed force, as shown in FIG.
  • Rotating gear 100 rotates the central axis in the vertical direction by a force and a non-circular insertion hole 110 is formed on the central axis, and an upper end is inserted into the insertion hole 110 to rotate the shaft.
  • the cylindrical cam 200 and the lifting is made in one piece
  • the rotary gear 100 forms a cap shape in which the edge portion extends downward, and gear teeth are formed on the outer surface of the downwardly extending portion to rotate by the rotational force provided from the driving motor 800.
  • the rotational force of the driving motor 800 is very fast, it is preferably configured to be transmitted to the rotary gear 100 after being decelerated through a plurality of gears.
  • the cylindrical cam 200 and the rotary gear 100 may be rotated independently of each other.
  • the shape of the protrusion is formed on the inner circumferential surface, and the upper end of the cylindrical cam 200 is preferably formed in a shape that is combined with the insertion hole 110.
  • the shape of the insertion hole 110 can achieve a non-circular shape, that is, if the shape is not circular, it may be formed in a polygonal shape or other various metaphysical shapes.
  • the upper end of the cylindrical cam 200 forms a shape to be combined with the insertion hole 110 of the rotary gear 100, but is produced in a slightly smaller size than the insertion hole 110, the cylindrical cam 200 ) Is rotated integrally with the rotary gear 100 when the rotary gear 100 is rotated, but when the lifting gear is received from the outside to maintain the state coupled to the rotary gear 100 and to independently raise or lower It becomes possible. That is, the driving motor 800 is operated in a state where the upper end of the cylindrical cam 200 is inserted into the insertion hole 110 and the other end of the bearing unit 600 is inserted into the slide groove 210 so that the rotary gear 100 rotates. When the cylindrical cam 200 is also rotated together with the rotary gear 100, the other side of the bearing unit 600 slides along the longitudinal direction of the slide groove 210.
  • the cylindrical cam 200 is rotated.
  • the valve assembly according to the present invention is either the cylindrical cam 200 is rotated or lifted in this way. It is configured to move the poppet shaft 300 and the valve seat 400 coupled thereto in the vertical direction while simultaneously implementing the rotation and the lifting. That is, the poppet shaft 300 may be manufactured in a rod shape (circular rod shape) having a circular cross section so as to be rotated independently of the cylindrical cam 200, and may be lifted and integrated with the cylindrical cam 200.
  • the stepped portion is formed in the middle of the portion inserted into the cylindrical cam 200 so that the flange corresponding to the upper surface of the cylindrical cam 200 is mounted.
  • the upper portion of the poppet shaft 300 is provided with a guide pipe 700 for guiding the moving direction of the poppet shaft 300 so that the poppet shaft 300 can only be moved up and down. Therefore, when the cylindrical cam 200 is rotated and lifted at the same time, the poppet shaft 300 and the valve seat 400 are lifted only in the vertical direction.
  • the outer surface of the guide pipe 700 is provided with a magnet 710 for detecting the lifting distance of the poppet shaft 300, the insert pipe welded to the poppet shaft 300 on the inner circumferential surface of the guide pipe 700 ( 730 is provided.
  • the rotary gear 100 when the cylindrical cam 200 is raised, the rotary gear 100 does not rise but only the cylindrical cam 200 must be lifted, the rotary gear by the friction force between the upper side of the cylindrical cam 200 and the insertion hole 110. A phenomenon in which the 100 moves up and down along the cylindrical cam 200 may occur. As the rotary gear 100 moves up and down along the cylindrical cam 200, the operation noise and vibration may be increased. Therefore, the rotary gear 100 may be disposed between the bottom surface of the rotary gear 100 and the top surface of the housing 510.
  • the return spring 530 is applied to the upward elastic force. As such, when the return spring 530 is provided, the rotary gear 100 always keeps in contact with the cover 520, so that the rotary gear 100 does not rise or fall along the cylindrical cam 200. No.
  • the return spring 530 and the rotary gear 100 is coupled in a laminated structure between the housing 510 and the cover 520, the rotary gear 100 and the return spring 530 in the separated state on the assembly line
  • the return spring 530 and the rotary gear 100 may be stacked, and there may be a lot of difficulties in the assembly process of covering the cover 520.
  • the valve assembly according to the present invention is characterized in that it is configured to be able to solve such problems, that is, the return spring 530 is configured to be supplied to the assembly line in the assembled state to the rotary gear 100.
  • the return spring 530 is configured to be supplied to the assembly line in the assembled state to the rotary gear 100.
  • a plurality of mounting hooks 102 protruding inwardly are formed at the edges of the rotary gear 100, and upper lines of the return springs 530 are mounted on the edges of the rotary gears 100. It may be configured to be preassembled to the rotary gear 100 by hanging over the hook (102).
  • the mounting hooks 102 are not removed from the mounting hooks 102 so that the return springs 530 are not removed from the mounting hooks 102.
  • the upper line of the return spring 530 passes over the convex surface of the mounting hook 102 even when a horizontal external force is applied to the return spring 530. Since it is not easy, the return spring 530 can be more stably mounted on the mounting hook 102, that is, it is possible to maintain a pre-assembled state in the rotary gear 100.
  • the return spring 530 is separated from the mounting hook 102, even if the return spring 530 is compressed in the vertical direction is interfered with the mounting hook 102 There is an advantage that the phenomenon does not occur.
  • Figure 8 is a cross-sectional view showing a coupling structure of the rotary gear 100 and the cylindrical cam 200.
  • the cylindrical cam 200 is provided.
  • the upper side of the rotary gear 100 is inserted into the insertion hole 110 and the return spring 530 is compressed by the descending rotary gear 100, the return spring 530 is a rotary gear ( 100 is elastically pressed upward.
  • an insertion tube 112 extending downward to be inserted into the housing 510 is formed at a portion of the bottom surface of the rotary gear 100 in which the insertion hole 110 is formed, and the cylindrical cam 200 is formed.
  • An insertion column 220 is formed at an upper side of the insertion hole 110, and an upper end of the insertion column 220 is provided with at least one locking jaw 222 protruding outward, and the insertion hole 110.
  • a fastening hook 114 protruding inward to be caught by the locking jaw 222 may be provided.
  • the rotary gear 100 is lowered and assembled to the cylindrical cam 200.
  • the fastening hook as shown in FIG. 114 is carried over the locking jaw 222.
  • Fastening hook 114 is carried over the locking jaw 222 downward, even if the elastic force of the return spring 530 is applied to the rotary gear 100 bar upwards do not pass over the locking jaw 222, insertion pillar ( 220 is not removed from the insertion tube (112).
  • the fastening hook 114 can be easily passed down the locking jaw 222 downwards, so that the locking hook 222 can not easily fall upward, the upper surface of the locking jaw 222 is inclined downward toward the outside Is formed, the bottom surface of the fastening hook 114 is preferably formed to be inclined upward toward the outside.
  • the fastening hook 114 which is easily assembled but difficult to separate, is widely commercialized in various fields, and detailed description of the detailed structure and operation principle of the fastening hook 114 is omitted.
  • the fastening hook 114 can easily ride over the catching jaw 222 downwards as the protruding distance is short, but can easily ride over the catching jaw 222 upward when the protruding distance is short. Therefore, in the valve assembly according to the present invention, when the fastening hook 114 rides down the locking jaw 222 downward, that is, when the inclined surface of the fastening hook 114 and the inclined surface of the locking jaw 222 are compressed.
  • the fastening hook 114 is preferably set to be pushed outwardly (away from the catching jaw 222).
  • the insertion tube 112 is preferably made of a material having high ductility and elasticity, and the insertion tube 112 is made of a material having high ductility and elasticity. If there is a risk of damage or deformation due to external force.
  • the valve assembly according to the present invention can be easily pushed outward when the fastening hook 114 is pressed against the locking jaw 222 even if the insertion pipe 112 is made of a material of high strength, the insertion pipe 112.
  • An incision groove 116 may be formed at a portion at which the fastening hook 114 is formed. As such, when an incision groove 116 is formed in a portion of the lower end of the insertion tube 112 corresponding to the fastening hook 114, the inner wall thickness of a point at which the fastening hook 114 is formed among the inner walls of the insertion pipe 112 is thin. Since the fastening hook 114 can be easily pushed outward.
  • the incision groove 116 is formed along the circumferential direction of the insertion tube 112, as shown in the present embodiment, so as to be formed over the entire portion of the lower end of the insertion tube 112, the fastening hook 114 is formed. It is preferably formed in an arc shape.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

La présente invention concerne un ensemble soupape à structure d'accouplement de ressort de rappel améliorée, comprenant : un engrenage de rotation entraîné en rotation autour d'un axe central dans une direction verticale par de la puissance appliquée de l'extérieur et comportant un trou d'introduction non circulaire sur l'axe central ; une came cylindrique dont l'extrémité supérieure est introduite dans le trou d'introduction de façon à être entraînée en rotation d'un seul tenant avec l'engrenage de rotation tout en montant ou en descendant en même temps, deux rainures de coulissement inclinées, ou plus, étant formées sur la surface circonférentielle extérieure de la came cylindrique ; une tige de clapet pénétrant l'axe de rotation de la came cylindrique de façon à monter ou à descendre d'un seul tenant avec la came cylindrique tout en permettant une rotation indépendante ; une feuille de soupape accouplée au côté inférieur de la tige de clapet ; un boîtier entourant la surface inférieure et la surface latérale de la came cylindrique ; deux unités paliers, ou plus, dont un côté est accouplé à demeure au boîtier et dont l'autre côté est introduit dans des rainures de coulissement respectives de façon à permettre un coulissement ; un couvercle entourant la surface supérieure et la surface latérale de l'engrenage de rotation et pourvu d'une partie en saillie de pression s'étendant vers le bas d'une zone correspondant à la surface supérieure de l'engrenage de rotation ; et un ressort de rappel fabriqué sous forme de ressort hélicoïdal et placé entre la surface inférieure de l'engrenage de rotation et la surface supérieure du boîtier de façon à appliquer une force élastique vers le haut à l'engrenage de rotation, plusieurs crochets de placement faisant saillie vers l'intérieur étant formés autour du bord de l'engrenage de rotation, et le côté supérieur du ressort de rappel étant placé sur les plusieurs crochets de placement.
PCT/KR2017/000144 2017-01-02 2017-01-05 Ensemble soupape à structure d'accouplement de ressort de rappel améliorée WO2018124360A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020170000286A KR101926682B1 (ko) 2017-01-02 2017-01-02 리턴스프링 체결구조가 개선된 밸브조립체
KR10-2017-0000286 2017-01-02

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Cited By (1)

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CN108984969A (zh) * 2018-08-22 2018-12-11 华东交通大学 一种软土地基盾构隧道运营期沉降计算方法

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KR102628122B1 (ko) * 2018-12-20 2024-01-23 남양넥스모 주식회사 차량 조향장치용 조향칼럼 충격완충구조
KR102176170B1 (ko) * 2019-06-18 2020-11-10 인지컨트롤스 주식회사 차량용 멀티밸브 및 이의 액추에이터장치

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US8171919B2 (en) * 2008-10-06 2012-05-08 Cooper-Standard Automotive (Deutschland) Gmbh Exhaust gas recirculation valve
KR20120050967A (ko) * 2009-06-17 2012-05-21 발레오 시스템므 드 꽁트롤르 모뙤르 운동 전환 장치를 포함하는 밸브
KR101604415B1 (ko) * 2014-10-07 2016-03-18 주식회사 코렌스 원통캠을 이용한 밸브조립체
KR20160104242A (ko) * 2015-02-26 2016-09-05 주식회사 현대케피코 리턴스프링 이탈방지 구조를 갖는 vcm 엑추에이터

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8171919B2 (en) * 2008-10-06 2012-05-08 Cooper-Standard Automotive (Deutschland) Gmbh Exhaust gas recirculation valve
KR20120050967A (ko) * 2009-06-17 2012-05-21 발레오 시스템므 드 꽁트롤르 모뙤르 운동 전환 장치를 포함하는 밸브
KR20110028878A (ko) * 2009-09-14 2011-03-22 한국델파이주식회사 자동차용 이지알밸브
KR101604415B1 (ko) * 2014-10-07 2016-03-18 주식회사 코렌스 원통캠을 이용한 밸브조립체
KR20160104242A (ko) * 2015-02-26 2016-09-05 주식회사 현대케피코 리턴스프링 이탈방지 구조를 갖는 vcm 엑추에이터

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CN108984969A (zh) * 2018-08-22 2018-12-11 华东交通大学 一种软土地基盾构隧道运营期沉降计算方法
CN108984969B (zh) * 2018-08-22 2022-11-15 华东交通大学 一种软土地基盾构隧道运营期沉降计算方法

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