WO1996003601A1 - The piston-connecting rod unit with an adjustable connecting-rod and the technology of manufacturing of the piston-connecting rod unit - Google Patents
The piston-connecting rod unit with an adjustable connecting-rod and the technology of manufacturing of the piston-connecting rod unit Download PDFInfo
- Publication number
- WO1996003601A1 WO1996003601A1 PCT/PL1995/000014 PL9500014W WO9603601A1 WO 1996003601 A1 WO1996003601 A1 WO 1996003601A1 PL 9500014 W PL9500014 W PL 9500014W WO 9603601 A1 WO9603601 A1 WO 9603601A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- ball
- holder
- skirt
- shaft
- Prior art date
Links
- 238000005516 engineering process Methods 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000005476 soldering Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 238000005219 brazing Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 238000009713 electroplating Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/14—Provisions for readily assembling or disassembling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
- F04B39/0022—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons piston rods
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/10—Connection to driving members
- F16J1/14—Connection to driving members with connecting-rods, i.e. pivotal connections
- F16J1/22—Connection to driving members with connecting-rods, i.e. pivotal connections with universal joint, e.g. ball-joint
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0466—Nickel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/12—Coating
Definitions
- the object of this invention is the piston-connecting rod unit with an adjustable connecting-rod, that may be applied especially in hermetic compressors, as well as the technology of its manufacturing.
- Such a design does not allow to adjust the outer dead centre of the piston in the compressor's cylinder otherwise than through dislocation of the cylinder in relation to the compressor's housing, which excludes application a housing and a piston as a one block of a compressor. Furthermore, the design mentioned above requires specialised tools for the necking process and cannot 5 guarantee that an accurate clearance in the ball-and-socket joint connecting the piston with the connecting-rod is achieved.
- the essence of this invention is the piston-connecting rod unit with an adjustable connecting-rod, in which, inside the cup- o like piston skirt, the sleeve-like holder of the socket of the ball installed on the front of the shaft being the frontal part of the connecting-rod, is centrally fixed.
- the flexible clamping insert fixed inside the holder by using a ring washer, supports the ball.
- the shaft on the opposite side of the ball has a thread, whereto the 5 coupling of the connecting-rod foot is fixed.
- the internal diameter of the sleeve-like holder is a little bit larger than the ball's diameter and at least three lubricating holes are placed on its side surface at the height of the ball axis.
- the piston skirt has, on the cylindrical surface, at least three holes facing the o holes of the holder.
- the manufacturing technology of the piston-connecting rod unit is that the piston skirt is brazed to the sleeve-like holder, and then between the piston skirt and the holder, the technological bushing is placed which perfectly fills the space between these two 5 parts approximately up to the half of the holder's height. Then, after the protruding part of the holder has been belled, the bearing socket is placed into the holder and, using a technological ball having diameter equal to the diameter of the ball, a mating surface of the socket and the ball is being formed.
- the ball joined with the o threaded shaft, the flexible insert and the ring washer are inserted into the so manufactured sub-assembly, and after taking out the technological bushing from the space between the piston skirt and the holder, the washer inside the holder is clamped. Then, screwing onto the shaft the threaded coupling of the connecting- 5 rod foot, the outer dead centre of the piston skirt front is set in the cylinder and afterwards the piston-connecting rod unit is integrated.
- the ball is joined with the shaft with a hard solder. To avoid undesired oxidation, the best results are achieved when a blanket furnace brazing using a copper is applied. Then, the ball is
- the advantage of the present invention lies in minimisation of the clearance space in the compressor through adjustment of the outer dead centre of the piston inside the cylinder as well as possibility of applying in the compressor's design the housing- 0 cylinder sub-assembly being a one block.
- Fig. 1 presents the longitudinal section of the piston-connecting rod unit
- Fig. 2 shows the location of the unit in the housing- 5 cylinder sub-assembly of the hermetic compressor.
- the piston-connecting rod unit with an adjustable connecting-rod in which, inside the cup-like piston 1 skirt there is installed centrally the sleeve-like holder 2 of the socket ⁇ of the o ball 4 being inseparatably fixed to the front of the shaft 5 being the frontal part of the connecting-rod.
- the ball is supported by the flexible clamping insert 6, fixed inside the holder 2 by using a ring washer 2, arid the shaft 5 on the opposite side of the ball 4 has a thread, whereto the coupling 8 of the foot of the connecting-rod ⁇ ) is fixed.
- the internal diameter of the sleeve-like holder 2 is a little bit larger than the diameter of the ball 4 and has at least three lubricating holes 10 placed on its side surface at the height of the ball 4 axis.
- the piston 1 skirt has on the cylindrical surface at least three holes ⁇ , facing the holes 10 of the holder 2.
- the manufacturing technology of the piston-connecting rod unit is that the cup-like piston 1 skirt is brazed to the sleeve-like holder 2, and then between the piston 1 skirt and the holder 2, the technological bushing is placed which perfectly fills the space between these two parts approximately up to the half of the height of the holder 2.
- the bearing socket $ is placed into the holder 2 and, using a technological ball having diameter equal to the diameter of the ball 4, a mating surface of the socket i and the ball 4 is being formed.
- the ball 4 joined with the threaded shaft 5* me flexible insert 6 and the ring washer 2 are inserted into the so manufactured sub-assembly, and after taking out the technological bushing from the space between the piston 1 skirt and the holder 2, the washer 2 inside the holder 2 is clamped.
- the shaft 5 into the threaded coupling 8 of the connecting-rod 9 foot, the outer dead centre of the piston 1 skirt front is set in the cylinder 12 and next the piston-connecting rod unit is integrated.
- the ball 4 is joined with the shaft 5 with a hard solder, preferably, to avoid oxidation, a blanket furnace brazing using a copper should be applied, and then, the ball 4 is 120 electroplated, preferably with a nickel coating of the thickness compensating decrease of diameter of the ball 4 during the soldering process.
- the screw joint of the shaft > and the sleeve 8 is protected from loosening by means of gluing or screwing on a lock-nut 23 .
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The piston-connecting rod unit with an adjustable connecting-rod has, inside the piston (1) skirt, the holder (2) of the socket (3) of the ball (4) installed on the shaft (5) having, on the opposite side of the ball, a thread fixing the coupling (8) of the connecting-rod (9) foot. The manufacturing technology of the piston-connecting rod unit is that between the piston (1) skirt and the holder (2) brazed to it, the technological bushing is placed up to the half of the height of the holder (2) which protruding part is belled. After the socket (3) has been formed by means of the ball having diameter equal to the diameter of the ball (4), the threaded shaft (5) with ball (4) joined with it, the insert (6) and the washer (7) are inserted and then the technological bushing is taken out. Afterwards, the threaded shaft (5) is screwed into the coupling (8) with the sleeve (9) and the protection from loosening is made by means of gluing or screwing on a lock-nut (13).
Description
THE PISTON-CONNECTING ROD UNIT
WITH AN ADJUSTABLE CONNECTING-ROD AND
THE TECHNOLOGY OF MANUFACTURING OF
THE PISTON-CONNECTING ROD UNIT.
The object of this invention is the piston-connecting rod unit with an adjustable connecting-rod, that may be applied especially in hermetic compressors, as well as the technology of its manufacturing.
There is known from the German patent application No. 30 30 319 the connecting-rod of a compressor, especially used in hermetic compressors of coolers, where the piston, fixed on the connecting-rod ball, is joined with the connecting-rod foot through the sectional connecting-rod. The parts of the connecting-rod are joined together by soldering after the piston-connecting rod sub- assembly has been assembled with the compressor shaft crank-pin in the housing-cylinder block being a monolith.
Such a design does not allow for clearance space adjustment in the compressor.
There is also known from the Polish patent description 162 054 the ball-and-socket joint piston, in which the ball is connected with the connecting-rod using welding and bonding technologies, and through the necking of a cylindrical protrusion of an internal part of the piston on the ball, using intermediate flexible insert, the ball and the piston are joined together.
Such a design does not allow to adjust the outer dead centre of the piston in the compressor's cylinder otherwise than through
dislocation of the cylinder in relation to the compressor's housing, which excludes application a housing and a piston as a one block of a compressor. Furthermore, the design mentioned above requires specialised tools for the necking process and cannot 5 guarantee that an accurate clearance in the ball-and-socket joint connecting the piston with the connecting-rod is achieved.
The essence of this invention is the piston-connecting rod unit with an adjustable connecting-rod, in which, inside the cup- o like piston skirt, the sleeve-like holder of the socket of the ball installed on the front of the shaft being the frontal part of the connecting-rod, is centrally fixed. The flexible clamping insert, fixed inside the holder by using a ring washer, supports the ball. The shaft on the opposite side of the ball has a thread, whereto the 5 coupling of the connecting-rod foot is fixed.
The internal diameter of the sleeve-like holder is a little bit larger than the ball's diameter and at least three lubricating holes are placed on its side surface at the height of the ball axis. The piston skirt has, on the cylindrical surface, at least three holes facing the o holes of the holder.
The manufacturing technology of the piston-connecting rod unit is that the piston skirt is brazed to the sleeve-like holder, and then between the piston skirt and the holder, the technological bushing is placed which perfectly fills the space between these two 5 parts approximately up to the half of the holder's height. Then, after the protruding part of the holder has been belled, the bearing socket is placed into the holder and, using a technological ball having diameter equal to the diameter of the ball, a mating surface of the socket and the ball is being formed. The ball joined with the o threaded shaft, the flexible insert and the ring washer are inserted
into the so manufactured sub-assembly, and after taking out the technological bushing from the space between the piston skirt and the holder, the washer inside the holder is clamped. Then, screwing onto the shaft the threaded coupling of the connecting- 5 rod foot, the outer dead centre of the piston skirt front is set in the cylinder and afterwards the piston-connecting rod unit is integrated. The ball is joined with the shaft with a hard solder. To avoid undesired oxidation, the best results are achieved when a blanket furnace brazing using a copper is applied. Then, the ball is
7o galvanised, preferably a nickel electroplating should be used, and the thickness of the ball's coating should compensate decrease of the ball's diameter during the soldering process. The screw joint of the shaft and the sleeve is protected from loosening by means of gluing or screwing on a lock-nut. 5
The advantage of the present invention lies in minimisation of the clearance space in the compressor through adjustment of the outer dead centre of the piston inside the cylinder as well as possibility of applying in the compressor's design the housing- 0 cylinder sub-assembly being a one block.
The object of this invention is shown on the drawing, where Fig. 1 presents the longitudinal section of the piston-connecting rod unit, and Fig. 2 shows the location of the unit in the housing- 5 cylinder sub-assembly of the hermetic compressor.
The piston-connecting rod unit with an adjustable connecting-rod in which, inside the cup-like piston 1 skirt there is installed centrally the sleeve-like holder 2 of the socket ^ of the o ball 4 being inseparatably fixed to the front of the shaft 5 being the
frontal part of the connecting-rod. The ball is supported by the flexible clamping insert 6, fixed inside the holder 2 by using a ring washer 2, arid the shaft 5 on the opposite side of the ball 4 has a thread, whereto the coupling 8 of the foot of the connecting-rod <) is fixed. The internal diameter of the sleeve-like holder 2 is a little bit larger than the diameter of the ball 4 and has at least three lubricating holes 10 placed on its side surface at the height of the ball 4 axis. The piston 1 skirt has on the cylindrical surface at least three holes ϋ, facing the holes 10 of the holder 2. The manufacturing technology of the piston-connecting rod unit is that the cup-like piston 1 skirt is brazed to the sleeve-like holder 2, and then between the piston 1 skirt and the holder 2, the technological bushing is placed which perfectly fills the space between these two parts approximately up to the half of the height of the holder 2. Then, after the protruding part of the holder 2 has been belled, the bearing socket $ is placed into the holder 2 and, using a technological ball having diameter equal to the diameter of the ball 4, a mating surface of the socket i and the ball 4 is being formed. The ball 4 joined with the threaded shaft 5* me flexible insert 6 and the ring washer 2 are inserted into the so manufactured sub-assembly, and after taking out the technological bushing from the space between the piston 1 skirt and the holder 2, the washer 2 inside the holder 2 is clamped. Afterwards, through screwing the shaft 5 into the threaded coupling 8 of the connecting-rod 9 foot, the outer dead centre of the piston 1 skirt front is set in the cylinder 12 and next the piston-connecting rod unit is integrated. The ball 4 is joined with the shaft 5 with a hard solder, preferably, to avoid oxidation, a blanket furnace brazing using a copper should be applied, and then, the ball 4 is
120 electroplated, preferably with a nickel coating of the thickness compensating decrease of diameter of the ball 4 during the soldering process. The screw joint of the shaft > and the sleeve 8 is protected from loosening by means of gluing or screwing on a lock-nut 23.-
125
Claims
1. The piston-connecting rod unit with an adjustable connecting-rod having the connecting-rod with the ball and the
5 sleeve as well as the cup-like piston, is characterized with the following: inside the cup-like piston CD skirt there is installed centrally the sleeve-like holder (2) of the socket ) of the ball (4) fixed on the front of the shaft ( ) being the frontal part of the connecting-rod and supported by the flexible clamping insert (6), ιo fixed inside the holder (2) by using the ring washer (2), while the shaft (5) has a thread, made on the opposite side of the ball (4), whereto the coupling (8) of the connecting-rod (2) foot is fixed.
2. The piston-connecting rod unit as claimed in claim 1, is i5 characterized by the following features: the internal diameter of the sleeve-like holder (2) is a little bit larger than the diameter of the ball (4) and has at least three lubricating holes (10) placed on its side surface at the height of the ball (4) axis.
20 3. The piston-connecting rod unit as claimed in claim 1, is characterized by the following features: the piston CD skirt has on the cylindrical surface at least three holes (11). facing the holes (10) of the holder (2).
25 4. The manufacturing technology of the piston-connecting rod unit is characterized by the following features: the cup-like piston Cl) skirt is brazed to the sleeve-like holder (2J>, and then between the piston (1) skirt and the holder (2), the technological bushing is placed, which perfectly fills the space between these two parts approximately up to the half of the height of the holder (2), and then, after the protruding part of the holder (2.) has been belled, the bearing socket ) is placed into the holder (2) and, using a technological ball having diameter equal to the diameter of the ball (4), a mating surface of the socket (3) and the ball (4) is being formed, then, the ball (4) joined with the threaded shaft (5), the flexible insert (6) and the ring washer (2) are inserted into the so manufactured sub-assembly, and after taking out the technological bushing from the space between the piston CD skirt and the holder (2_), the washer (2) inside the holder (2) is clamped, and then, screwing the shaft (5) into the threaded coupling (8) of the connecting-rod (^) foot, the outer dead centre of the piston CD skirt front is set in the cylinder (12) and finally the piston-connecting rod unit is integrated.
5. The technology as claimed in claim 4, is characterized by that the ball (4) is joined with the shaft (5) with a hard solder, preferably, to avoid oxidation, a blanket furnace brazing using a copper should be applied, and then, the ball (4) is electroplated, preferably with a nickel coating of the thickness compensating decrease of diameter of the ball (4) during the soldering process.
6. The technology as claimed in claim 4, is characterized by that the screw joint of the shaft (5) and the sleeve (8) is protected from loosening by means of gluing or screwing on a lock-nut (13).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PLP.304502 | 1994-07-28 | ||
| PL30450294A PL304502A1 (en) | 1994-07-28 | 1994-07-28 | Piston/connecting-rod assembly with adjustable connecting-rod length and method of making same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1996003601A1 true WO1996003601A1 (en) | 1996-02-08 |
Family
ID=20062983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/PL1995/000014 WO1996003601A1 (en) | 1994-07-28 | 1995-07-26 | The piston-connecting rod unit with an adjustable connecting-rod and the technology of manufacturing of the piston-connecting rod unit |
Country Status (2)
| Country | Link |
|---|---|
| PL (1) | PL304502A1 (en) |
| WO (1) | WO1996003601A1 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999057437A1 (en) * | 1998-05-04 | 1999-11-11 | Empresa Brasileira De Compressores S.A. - Embraco | A two-piece connecting rod for a reciprocating compressor and method for assembling a two-piece connecting rod |
| WO1999048613A3 (en) * | 1998-03-25 | 1999-11-25 | Reipur Technology A S | A method for selectively generating a flow of gas from an open end of a tubular body, such as a hose |
| FR2819030A1 (en) * | 2001-01-02 | 2002-07-05 | Bosch Gmbh Robert | Device for connecting brake pedal to master cylinder piston comprises bar with spherical end which lodges in socket with conical base |
| EP1126171A3 (en) * | 2000-02-14 | 2002-07-10 | Matsushita Electric Industrial Co., Ltd. | Linear compressor |
| CN102797662A (en) * | 2012-08-09 | 2012-11-28 | 重庆气体压缩机厂有限责任公司 | Piston rod assembly-disassembly protection device used in cylinder of air compressor |
| CN102913506A (en) * | 2012-11-09 | 2013-02-06 | 浙江大学 | Piston rod type hydraulic cylinder with internally-arranged ball hinge |
| DE102014001248A1 (en) * | 2014-02-03 | 2015-08-06 | Gkn Sinter Metals Engineering Gmbh | Connecting rod and piston assembly with a connecting rod with ball head |
| DE10392502B4 (en) * | 2002-04-08 | 2016-01-28 | Rossmax Medical Japan Co.Ltd. | piston pump |
| CN106401909A (en) * | 2016-09-26 | 2017-02-15 | 加西贝拉压缩机有限公司 | Piston connecting rod device for refrigeration compressor |
| EP3190294A1 (en) * | 2015-12-29 | 2017-07-12 | Whirlpool S.A. | Two-parts telescopic connecting rod for alternative compressors and method of assembling two-parts telescopic connecting rod in alternative compressors |
| CN109779897A (en) * | 2018-12-31 | 2019-05-21 | 武汉钜威天数字化机械制造有限公司 | A kind of not equal wall thickness packet ball link |
| EP3812585A1 (en) * | 2019-10-24 | 2021-04-28 | LG Electronics Inc. | Linear compressor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH389989A (en) * | 1961-11-03 | 1965-03-31 | Sulzer Ag | Device for high pressure lubrication of a bearing of a connecting rod in a piston machine |
| US3482487A (en) * | 1966-12-13 | 1969-12-09 | Danfoss As | Piston system with ball-head link |
| DE3030319A1 (en) * | 1979-10-12 | 1981-04-23 | VEB dkk Scharfenstein, DDR 9366 Scharfenstein | Hermetically sealed refrigerant compressor - has connecting rod in two parts welded together to simplify assembly |
-
1994
- 1994-07-28 PL PL30450294A patent/PL304502A1/en unknown
-
1995
- 1995-07-26 WO PCT/PL1995/000014 patent/WO1996003601A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH389989A (en) * | 1961-11-03 | 1965-03-31 | Sulzer Ag | Device for high pressure lubrication of a bearing of a connecting rod in a piston machine |
| US3482487A (en) * | 1966-12-13 | 1969-12-09 | Danfoss As | Piston system with ball-head link |
| DE3030319A1 (en) * | 1979-10-12 | 1981-04-23 | VEB dkk Scharfenstein, DDR 9366 Scharfenstein | Hermetically sealed refrigerant compressor - has connecting rod in two parts welded together to simplify assembly |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999048613A3 (en) * | 1998-03-25 | 1999-11-25 | Reipur Technology A S | A method for selectively generating a flow of gas from an open end of a tubular body, such as a hose |
| WO1999057437A1 (en) * | 1998-05-04 | 1999-11-11 | Empresa Brasileira De Compressores S.A. - Embraco | A two-piece connecting rod for a reciprocating compressor and method for assembling a two-piece connecting rod |
| EP1126171A3 (en) * | 2000-02-14 | 2002-07-10 | Matsushita Electric Industrial Co., Ltd. | Linear compressor |
| US6506032B2 (en) | 2000-02-14 | 2003-01-14 | Matsushita Electric Industrial Co., Ltd. | Linear compressor |
| FR2819030A1 (en) * | 2001-01-02 | 2002-07-05 | Bosch Gmbh Robert | Device for connecting brake pedal to master cylinder piston comprises bar with spherical end which lodges in socket with conical base |
| DE10392502B4 (en) * | 2002-04-08 | 2016-01-28 | Rossmax Medical Japan Co.Ltd. | piston pump |
| CN102797662B (en) * | 2012-08-09 | 2014-12-10 | 重庆气体压缩机厂有限责任公司 | Piston rod assembly-disassembly protection device used in cylinder of air compressor |
| CN102797662A (en) * | 2012-08-09 | 2012-11-28 | 重庆气体压缩机厂有限责任公司 | Piston rod assembly-disassembly protection device used in cylinder of air compressor |
| CN102913506A (en) * | 2012-11-09 | 2013-02-06 | 浙江大学 | Piston rod type hydraulic cylinder with internally-arranged ball hinge |
| DE102014001248A1 (en) * | 2014-02-03 | 2015-08-06 | Gkn Sinter Metals Engineering Gmbh | Connecting rod and piston assembly with a connecting rod with ball head |
| EP3190294A1 (en) * | 2015-12-29 | 2017-07-12 | Whirlpool S.A. | Two-parts telescopic connecting rod for alternative compressors and method of assembling two-parts telescopic connecting rod in alternative compressors |
| CN106401909A (en) * | 2016-09-26 | 2017-02-15 | 加西贝拉压缩机有限公司 | Piston connecting rod device for refrigeration compressor |
| CN109779897A (en) * | 2018-12-31 | 2019-05-21 | 武汉钜威天数字化机械制造有限公司 | A kind of not equal wall thickness packet ball link |
| EP3812585A1 (en) * | 2019-10-24 | 2021-04-28 | LG Electronics Inc. | Linear compressor |
| US11965500B2 (en) | 2019-10-24 | 2024-04-23 | Lg Electronics Inc. | Linear compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| PL304502A1 (en) | 1996-02-05 |
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