US20060285981A1 - Swash ring compressor with spherical bearing - Google Patents
Swash ring compressor with spherical bearing Download PDFInfo
- Publication number
- US20060285981A1 US20060285981A1 US11/157,740 US15774005A US2006285981A1 US 20060285981 A1 US20060285981 A1 US 20060285981A1 US 15774005 A US15774005 A US 15774005A US 2006285981 A1 US2006285981 A1 US 2006285981A1
- Authority
- US
- United States
- Prior art keywords
- shaft
- sleeve
- swash ring
- ring
- swash
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
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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
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B27/1036—Component parts, details, e.g. sealings, lubrication
- F04B27/1054—Actuating elements
- F04B27/1072—Pivot mechanisms
Definitions
- the present invention generally relates to a variable displacement compressor having a swash ring construction. More specifically, the present invention relates to a variable displacement swash-ring compressor having spherical bearing.
- a compressor In an automotive vehicle equipped with air conditioning, a compressor is used to pump coolant through the air conditioning system to cool the vehicle. Most often, the compressor is driven by a serpentine belt of the vehicle and, hence, the speed of the compressor is controlled by the speed of the vehicle.
- variable displacement compressors In order to provide consistent operation of the air conditioning system, variable displacement compressors have been developed to allow the compressor to provide constant performance at all vehicle speeds. In a variable displacement compressor, higher displacement is necessary when the vehicle is idling or running at low speeds. When the vehicle is running at high speeds, the compressor is cycling much more rapidly, and therefore can provide equivalent performance at a lower displacement.
- the typical automotive air conditioning compressor uses multiple pistons to pump the coolant through the system.
- the pistons are driven back and forth within the compressor by a plate or ring that is attached to a rotating shaft.
- the plate or ring is mounted at an angle relative to the shaft and engages each of the pistons. Due to the angle of the ring, radial positions around a periphery of the ring have varying axial positions within the compressor.
- the pistons are fixed radially within the compressor housing, so that as the shaft and ring rotate the pistons slide along the periphery of the ring and are thereby moved axially back and forth with rotations of the shaft and ring.
- Variable displacement is achieved by limiting the stroke of the pistons.
- Variable displacement compressors are available in three basic types: 1) wobble plate compressors, 2) swash-plate compressors, or 3) swash ring compressors.
- the present invention is related to a swash ring compressor.
- a sleeve is slidably mounted for limited axial movement along the compressor's shaft and a swash ring is pivotally mounted onto the sleeve.
- a pin rigidly mounted within and extending from the shaft, engages the swash ring at an axial distance from the pivotal connection between the swash ring and the sleeve.
- the swash ring moves axially with the sleeve at the pivotal connection, but cannot move axially at the point where the pin engages the swashring. This causes the swash ring to pivot about the point where the pin engages the swash ring, thereby changing the angle of the swash ring relative to the shaft.
- the pin undergoes very high stresses and is therefore made from very hard materials.
- the contact between the pin and a pocket formed within the swash ring is generally a point contact, causing very high stress at that point, leading to accelerated wear.
- the present invention is a compressor that includes a shaft rotatably mounted within the compressor.
- a sleeve is slidably supported on the shaft.
- a swash ring is pivotally mounted onto the sleeve such that the swash ring is angularly adjustable with respect to the shaft.
- a pin is fixedly mounted to and extends from the shaft and has a cylindrical distal end.
- the swash ring includes a radially inwardly open spherical pocket.
- a spherical bearing insert is positioned within the pocket and the cylindrical distal end of the pin slidably engages the spherical bearing insert such that the distal end of the pin is pivotally coupled to the swash ring.
- connection between the swash ring and the pin forces the swash ring to rotate with the shaft, while allowing the swash ring to be angularly adjusted relative to the shaft.
- the sleeve is further biased along the shaft by a spring whose position may be varied.
- the spherical bearing insert includes a cylindrical orifice extending therethrough, the cylindrical distal end of the pin being received within the cylindrical orifice of the spherical bearing insert.
- FIG. 1 is a sectional view of a swash-ring compressor of the present invention
- FIG. 2 is a perspective view of the shaft, swash-ring and sleeve of the compressor of FIG. 1 ;
- FIG. 3 is a sectional view taken along lines 3 - 3 of FIG. 2 ;
- FIG. 4 is an enlarged portion of FIG. 3 as indicated by the circle labeled “ FIG. 4 ” in FIG. 3 ;
- FIG. 5 is a side view of the swash ring and sleeve showing the engagement of the pin with the spherical bearing insert and swash ring;
- FIG. 6 is a sectional view taken along line 6 - 6 of FIG. 2 .
- variable displacement swash-ring compressor A complete description of a variable displacement swash-ring compressor is found in U.S. Pat. No. 6,164,252 which has been incorporated by reference into the present application.
- the compressor 10 includes a driven shaft 12 having a first end 14 and a second end 16 .
- the first and second ends 14 , 16 of the shaft 12 are supported within a compressor housing 18 by bearing elements 20 .
- the shaft 12 is adapted for rotational movement within the compressor housing 18 .
- the shaft 12 will have a pulley (not shown) mounted to one of the ends 14 , 16 .
- the pulley engages a serpentine belt of an automotive vehicle, although, the concepts of the present invention would work on a compressor where the shaft 12 is driven by other means.
- a sleeve 22 is slidably supported on the shaft 12 and includes a first collar portion 24 and a second collar portion 26 at opposing ends thereof.
- the first and second collar portions 24 , 26 slidably support the sleeve 22 on the shaft 12 .
- a spring 28 is mounted on the shaft 12 to bias the sleeve 22 along the shaft 12 for adjustment purposes of a swash ring 30 further discussed below.
- the spring 28 can be positioned between one of the collar portions 24 , 26 of the sleeve 22 and a structural portion of the compressor 10 .
- the shaft 12 includes a snap ring groove formed therein.
- a snap ring 52 is positioned within the snap ring groove 50 to provide a stop to support the spring 28 .
- the swash ring 30 is pivotally mounted onto the sleeve 22 .
- the sleeve 22 includes a pair of axially aligned bearing pins 32 .
- the bearing pins 32 extend radially outward from diametrically opposite sides of the sleeve 22 .
- the swash ring 30 is pivotally supported on distal ends 34 of the bearing pins 32 such that the swash ring 30 is pivotal about an axis 36 running longitudinally through the bearing pins 32 and perpendicular to and through a central axis 38 of the shaft 12 .
- the pivotal connection between the swash ring 30 and the sleeve 22 allows the angle of the swash ring 30 relative to the shaft 12 to be adjusted.
- a pin 40 is mounted within and extends from the shaft 12 .
- a distal end 42 of the pin 40 is generally cylindrical.
- the swash ring 30 includes a radially inwardly open pocket 44 .
- the pocket 44 is generally spherical in shape and is sized to receive and retain a spherical bearing insert 46 therein.
- the spherical bearing insert 46 includes a cylindrical orifice 48 extending therethrough.
- the distal end 40 of the pin 42 slidingly engages the orifice 48 within the spherical bearing insert 46 .
- the spherical bearing insert 46 allows pivotal movement of the pin relative to the swash ring such that the swash ring 30 is allowed to pivot about the distal end 42 of the pin 40 .
- the connection between the distal end 42 of the pin 40 and the swash ring 30 forces the swash ring 30 to rotate with the shaft 12 .
- the engagement between the pocket 44 and the spherical bearing insert 46 is over a large portion of the surface area of the pocket. This larger area of engagement spreads the loads transferred between the pin 40 and the swash ring 30 over the contact area, thereby reducing the point loads that are experienced by the pin 40 , the bearing insert 46 , and the swash ring 30 . Because the loads experienced are low, the spherical bearing insert 46 can be formed of a softer alloy, such as copper alloys. The use of the spherical bearing insert 46 will reduce the overall wear and tear experienced by the swash ring 30 and the pin 40 , thereby increasing the life of the compressor 10 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Description
- 1. Technical Field of the Invention
- The present invention generally relates to a variable displacement compressor having a swash ring construction. More specifically, the present invention relates to a variable displacement swash-ring compressor having spherical bearing.
- 2. Description of the Prior Art
- In an automotive vehicle equipped with air conditioning, a compressor is used to pump coolant through the air conditioning system to cool the vehicle. Most often, the compressor is driven by a serpentine belt of the vehicle and, hence, the speed of the compressor is controlled by the speed of the vehicle. In order to provide consistent operation of the air conditioning system, variable displacement compressors have been developed to allow the compressor to provide constant performance at all vehicle speeds. In a variable displacement compressor, higher displacement is necessary when the vehicle is idling or running at low speeds. When the vehicle is running at high speeds, the compressor is cycling much more rapidly, and therefore can provide equivalent performance at a lower displacement.
- The typical automotive air conditioning compressor uses multiple pistons to pump the coolant through the system. The pistons are driven back and forth within the compressor by a plate or ring that is attached to a rotating shaft. The plate or ring is mounted at an angle relative to the shaft and engages each of the pistons. Due to the angle of the ring, radial positions around a periphery of the ring have varying axial positions within the compressor. The pistons are fixed radially within the compressor housing, so that as the shaft and ring rotate the pistons slide along the periphery of the ring and are thereby moved axially back and forth with rotations of the shaft and ring. Variable displacement is achieved by limiting the stroke of the pistons. Variable displacement compressors are available in three basic types: 1) wobble plate compressors, 2) swash-plate compressors, or 3) swash ring compressors. The present invention is related to a swash ring compressor.
- In a swash ring compressor, the pistons within the compressor are driven by a swash ring. Variable displacement, by limiting the stroke of the pistons, is achieved by varying the angle of the swash ring relative to the rotating shaft. U.S. Pat. No. 6,164,252 describes the construction of a variable displacement swash ring compressor and is hereby incorporated by reference into the present application.
- In the '252 patent, a sleeve is slidably mounted for limited axial movement along the compressor's shaft and a swash ring is pivotally mounted onto the sleeve. A pin, rigidly mounted within and extending from the shaft, engages the swash ring at an axial distance from the pivotal connection between the swash ring and the sleeve. As the sleeve slides along the shaft, the swash ring moves axially with the sleeve at the pivotal connection, but cannot move axially at the point where the pin engages the swashring. This causes the swash ring to pivot about the point where the pin engages the swash ring, thereby changing the angle of the swash ring relative to the shaft.
- As a result of the pin transferring rotation to the swash ring, the pin undergoes very high stresses and is therefore made from very hard materials. The contact between the pin and a pocket formed within the swash ring is generally a point contact, causing very high stress at that point, leading to accelerated wear.
- As seen from the above, there is a need to improve the design of the pin/swash ring interface for a compressor so that the compressor can be made more robust.
- The disadvantages of the prior art are overcome by providing a variable displacement swash ring compressor with a spherical bearing insert that couples the pin to the swash ring. Use of the spherical bearing insert spreads the loads out over a larger area of the pocket within the swash ring, thereby reducing the point loads and stresses.
- In one aspect, the present invention is a compressor that includes a shaft rotatably mounted within the compressor. A sleeve is slidably supported on the shaft. A swash ring is pivotally mounted onto the sleeve such that the swash ring is angularly adjustable with respect to the shaft. A pin is fixedly mounted to and extends from the shaft and has a cylindrical distal end. The swash ring includes a radially inwardly open spherical pocket. A spherical bearing insert is positioned within the pocket and the cylindrical distal end of the pin slidably engages the spherical bearing insert such that the distal end of the pin is pivotally coupled to the swash ring. The connection between the swash ring and the pin forces the swash ring to rotate with the shaft, while allowing the swash ring to be angularly adjusted relative to the shaft. The sleeve is further biased along the shaft by a spring whose position may be varied.
- In another aspect of the present invention, the spherical bearing insert includes a cylindrical orifice extending therethrough, the cylindrical distal end of the pin being received within the cylindrical orifice of the spherical bearing insert.
- The above, as well as other advantages of the present invention, will become readily apparent to those skilled in the art from the following detailed description of a preferred embodiment when considered in the light of the accompanying drawings in which:
-
FIG. 1 is a sectional view of a swash-ring compressor of the present invention; -
FIG. 2 is a perspective view of the shaft, swash-ring and sleeve of the compressor ofFIG. 1 ; -
FIG. 3 is a sectional view taken along lines 3-3 ofFIG. 2 ; -
FIG. 4 is an enlarged portion ofFIG. 3 as indicated by the circle labeled “FIG. 4 ” inFIG. 3 ; -
FIG. 5 is a side view of the swash ring and sleeve showing the engagement of the pin with the spherical bearing insert and swash ring; and -
FIG. 6 is a sectional view taken along line 6-6 ofFIG. 2 . - A complete description of a variable displacement swash-ring compressor is found in U.S. Pat. No. 6,164,252 which has been incorporated by reference into the present application.
- Referring now to
FIG. 1 , a variable displacement piston compressor of the present invention is shown generally at 10. Thecompressor 10 includes a drivenshaft 12 having afirst end 14 and asecond end 16. The first andsecond ends shaft 12 are supported within acompressor housing 18 by bearingelements 20. Theshaft 12 is adapted for rotational movement within thecompressor housing 18. Typically, theshaft 12 will have a pulley (not shown) mounted to one of theends shaft 12 is driven by other means. - Referring now also to
FIGS. 2 and 3 , asleeve 22 is slidably supported on theshaft 12 and includes afirst collar portion 24 and asecond collar portion 26 at opposing ends thereof. The first andsecond collar portions sleeve 22 on theshaft 12. Aspring 28 is mounted on theshaft 12 to bias thesleeve 22 along theshaft 12 for adjustment purposes of aswash ring 30 further discussed below. - The
spring 28 can be positioned between one of thecollar portions sleeve 22 and a structural portion of thecompressor 10. As shown inFIG. 3 , theshaft 12 includes a snap ring groove formed therein. Asnap ring 52 is positioned within thesnap ring groove 50 to provide a stop to support thespring 28. - Referring to
FIG. 6 , theswash ring 30 is pivotally mounted onto thesleeve 22. Thesleeve 22 includes a pair of axially aligned bearing pins 32. The bearing pins 32 extend radially outward from diametrically opposite sides of thesleeve 22. Theswash ring 30 is pivotally supported ondistal ends 34 of the bearing pins 32 such that theswash ring 30 is pivotal about anaxis 36 running longitudinally through the bearing pins 32 and perpendicular to and through acentral axis 38 of theshaft 12. The pivotal connection between theswash ring 30 and thesleeve 22 allows the angle of theswash ring 30 relative to theshaft 12 to be adjusted. - Referring again to
FIGS. 2 and 3 , apin 40 is mounted within and extends from theshaft 12. Adistal end 42 of thepin 40 is generally cylindrical. Theswash ring 30 includes a radially inwardlyopen pocket 44. Referring toFIGS. 4 and 5 , thepocket 44 is generally spherical in shape and is sized to receive and retain aspherical bearing insert 46 therein. Thespherical bearing insert 46 includes acylindrical orifice 48 extending therethrough. - The
distal end 40 of thepin 42 slidingly engages theorifice 48 within thespherical bearing insert 46. Thespherical bearing insert 46 allows pivotal movement of the pin relative to the swash ring such that theswash ring 30 is allowed to pivot about thedistal end 42 of thepin 40. However, the connection between thedistal end 42 of thepin 40 and theswash ring 30 forces theswash ring 30 to rotate with theshaft 12. - Because the shape of the
pocket 44 and thespherical bearing insert 46 are both generally spherical, the engagement between thepocket 44 and thespherical bearing insert 46 is over a large portion of the surface area of the pocket. This larger area of engagement spreads the loads transferred between thepin 40 and theswash ring 30 over the contact area, thereby reducing the point loads that are experienced by thepin 40, the bearinginsert 46, and theswash ring 30. Because the loads experienced are low, thespherical bearing insert 46 can be formed of a softer alloy, such as copper alloys. The use of thespherical bearing insert 46 will reduce the overall wear and tear experienced by theswash ring 30 and thepin 40, thereby increasing the life of thecompressor 10. - The foregoing discussion discloses and describes the preferred embodiment, and variations thereof, of the present invention. One skilled in the art will readily recognize from such discussion, and from the accompanying drawings and claims, that changes and modifications can be made to the invention without departing from the true spirit and fair scope of the invention as defined in the following claims. The invention has been described in an illustrative manner, and it is to be understood that the terminology which has been used is intended to be in the nature of words of description rather than of limitation.
Claims (11)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/157,740 US20060285981A1 (en) | 2005-06-21 | 2005-06-21 | Swash ring compressor with spherical bearing |
DE102006028623A DE102006028623A1 (en) | 2005-06-21 | 2006-06-16 | Swash ring compressor with spherical bearing |
JP2006197434A JP2007002849A (en) | 2005-06-21 | 2006-06-21 | Swash ring compressor provided with spherical bearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/157,740 US20060285981A1 (en) | 2005-06-21 | 2005-06-21 | Swash ring compressor with spherical bearing |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060285981A1 true US20060285981A1 (en) | 2006-12-21 |
Family
ID=37563644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/157,740 Abandoned US20060285981A1 (en) | 2005-06-21 | 2005-06-21 | Swash ring compressor with spherical bearing |
Country Status (3)
Country | Link |
---|---|
US (1) | US20060285981A1 (en) |
JP (1) | JP2007002849A (en) |
DE (1) | DE102006028623A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080223208A1 (en) * | 2007-02-07 | 2008-09-18 | Doowon Technical College | Assembly structure of drive shaft and swash plate in swash plate type compressor |
WO2009103546A1 (en) * | 2008-02-21 | 2009-08-27 | Ixetic Mac Gmbh | Reciprocating piston machine |
US20140308139A1 (en) * | 2013-04-10 | 2014-10-16 | Medhat Kamel Bahr Khalil | Double swash plate pump with adjustable valve ring concept |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005039199A1 (en) * | 2005-08-18 | 2007-03-08 | Valeo Compressor Europe Gmbh | axial piston |
KR100792495B1 (en) | 2007-02-07 | 2008-01-10 | 학교법인 두원학원 | Assembly structure of drive shaft and swash plate for swash plate type compressor |
Citations (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2247527A (en) * | 1938-11-21 | 1941-07-01 | Stinnes Hanns Heinz | Swash-ring driving mechanism |
US2337511A (en) * | 1940-08-01 | 1943-12-21 | Gunnar A Wahlmark | Antifriction bearing |
US2804679A (en) * | 1954-08-23 | 1957-09-03 | Southwest Products Co | Method of making bearings and rod end bearings |
US4418586A (en) * | 1981-05-20 | 1983-12-06 | General Motors Corporation | Swash plate drive mechanism |
US5181453A (en) * | 1990-10-23 | 1993-01-26 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Variable displacement compressor |
US5292233A (en) * | 1992-04-10 | 1994-03-08 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Variable capacity swash plate type compressor |
US5293810A (en) * | 1991-09-20 | 1994-03-15 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Variable displacement compressor |
US5336056A (en) * | 1991-03-30 | 1994-08-09 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Variable capacity swash plate type refrigerant compressor having a double fulcrum hinge mechanism |
US5382139A (en) * | 1992-08-21 | 1995-01-17 | Kabushiki Kaisha Toyoda Jodoshokki Seisakusho | Guiding mechanism for reciprocating piston of piston type compressor |
US5540559A (en) * | 1993-04-08 | 1996-07-30 | Ube Industries, Ltd. | Variable capacity swash-plate type compressor |
US5937731A (en) * | 1997-01-10 | 1999-08-17 | Zexel Corporation | Variable capacity swash plate compressor |
US5941157A (en) * | 1997-01-31 | 1999-08-24 | Zexel Corporation | Variable capacity swash plate compressor |
US5943941A (en) * | 1995-03-07 | 1999-08-31 | Kabushiki Kaisha Toyoda Jidoshokki, Seisakusho | Reciprocating compressor |
US6164252A (en) * | 1997-11-11 | 2000-12-26 | Obrist Engineering Gmbh | Reciprocating piston engine with a swivel disk gear |
US6186048B1 (en) * | 1998-01-13 | 2001-02-13 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Variable displacement compressor |
US20010017079A1 (en) * | 2000-02-29 | 2001-08-30 | Manabu Sugiura | Coating forming method using an electric arc welding for a swash plate of a swash plate compressor and the swash plate with the coating |
US6582200B2 (en) * | 2000-07-14 | 2003-06-24 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Swash plate compressor having shoes made of a magnesium-based material |
US6705841B2 (en) * | 2002-03-01 | 2004-03-16 | Visteon Global Technologies, Inc. | Variable displacement compressor with stepped shaft |
US6752065B2 (en) * | 2001-11-07 | 2004-06-22 | Kabushiki Kaisha Toyota Jidoshokki | Sliding member and sliding device |
US20040134342A1 (en) * | 2001-05-16 | 2004-07-15 | Roland Casar | Reciprocating-piston machine with a driver |
US20040165993A1 (en) * | 2003-02-21 | 2004-08-26 | Denso Corporation | Limiter device for variable displacement compressor |
US20040216603A1 (en) * | 2003-04-04 | 2004-11-04 | Otfried Schwarzkopf | Reciprocating compressor, in particular CO2 compressor for vehicle air-conditioning units |
US20050069448A1 (en) * | 2002-08-23 | 2005-03-31 | Issaku Sato | Multi-layer sliding part and a method for its manufacture |
-
2005
- 2005-06-21 US US11/157,740 patent/US20060285981A1/en not_active Abandoned
-
2006
- 2006-06-16 DE DE102006028623A patent/DE102006028623A1/en not_active Withdrawn
- 2006-06-21 JP JP2006197434A patent/JP2007002849A/en active Pending
Patent Citations (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2247527A (en) * | 1938-11-21 | 1941-07-01 | Stinnes Hanns Heinz | Swash-ring driving mechanism |
US2337511A (en) * | 1940-08-01 | 1943-12-21 | Gunnar A Wahlmark | Antifriction bearing |
US2804679A (en) * | 1954-08-23 | 1957-09-03 | Southwest Products Co | Method of making bearings and rod end bearings |
US4418586A (en) * | 1981-05-20 | 1983-12-06 | General Motors Corporation | Swash plate drive mechanism |
US5181453A (en) * | 1990-10-23 | 1993-01-26 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Variable displacement compressor |
US5336056A (en) * | 1991-03-30 | 1994-08-09 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Variable capacity swash plate type refrigerant compressor having a double fulcrum hinge mechanism |
USRE35878E (en) * | 1991-03-30 | 1998-08-25 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Variable capacity swash plate type refrigerant compressor having a double fulcrum hinge mechanism |
US5293810A (en) * | 1991-09-20 | 1994-03-15 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Variable displacement compressor |
US5292233A (en) * | 1992-04-10 | 1994-03-08 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Variable capacity swash plate type compressor |
US5382139A (en) * | 1992-08-21 | 1995-01-17 | Kabushiki Kaisha Toyoda Jodoshokki Seisakusho | Guiding mechanism for reciprocating piston of piston type compressor |
US5540559A (en) * | 1993-04-08 | 1996-07-30 | Ube Industries, Ltd. | Variable capacity swash-plate type compressor |
US5943941A (en) * | 1995-03-07 | 1999-08-31 | Kabushiki Kaisha Toyoda Jidoshokki, Seisakusho | Reciprocating compressor |
US5937731A (en) * | 1997-01-10 | 1999-08-17 | Zexel Corporation | Variable capacity swash plate compressor |
US5941157A (en) * | 1997-01-31 | 1999-08-24 | Zexel Corporation | Variable capacity swash plate compressor |
US6164252A (en) * | 1997-11-11 | 2000-12-26 | Obrist Engineering Gmbh | Reciprocating piston engine with a swivel disk gear |
US6186048B1 (en) * | 1998-01-13 | 2001-02-13 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Variable displacement compressor |
US20010017079A1 (en) * | 2000-02-29 | 2001-08-30 | Manabu Sugiura | Coating forming method using an electric arc welding for a swash plate of a swash plate compressor and the swash plate with the coating |
US6582200B2 (en) * | 2000-07-14 | 2003-06-24 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Swash plate compressor having shoes made of a magnesium-based material |
US20040134342A1 (en) * | 2001-05-16 | 2004-07-15 | Roland Casar | Reciprocating-piston machine with a driver |
US6752065B2 (en) * | 2001-11-07 | 2004-06-22 | Kabushiki Kaisha Toyota Jidoshokki | Sliding member and sliding device |
US6705841B2 (en) * | 2002-03-01 | 2004-03-16 | Visteon Global Technologies, Inc. | Variable displacement compressor with stepped shaft |
US20050069448A1 (en) * | 2002-08-23 | 2005-03-31 | Issaku Sato | Multi-layer sliding part and a method for its manufacture |
US20040165993A1 (en) * | 2003-02-21 | 2004-08-26 | Denso Corporation | Limiter device for variable displacement compressor |
US20040216603A1 (en) * | 2003-04-04 | 2004-11-04 | Otfried Schwarzkopf | Reciprocating compressor, in particular CO2 compressor for vehicle air-conditioning units |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080223208A1 (en) * | 2007-02-07 | 2008-09-18 | Doowon Technical College | Assembly structure of drive shaft and swash plate in swash plate type compressor |
US7802512B2 (en) * | 2007-02-07 | 2010-09-28 | Doowon Technical College | Assembly structure of drive shaft and swash plate in swash plate type compressor |
WO2009103546A1 (en) * | 2008-02-21 | 2009-08-27 | Ixetic Mac Gmbh | Reciprocating piston machine |
US20100316510A1 (en) * | 2008-02-21 | 2010-12-16 | Ixetic Mac Gmbh | Reciprocating piston machine |
US8747077B2 (en) * | 2008-02-21 | 2014-06-10 | Ixetic Mac Gmbh | Reciprocating piston machine |
US20140308139A1 (en) * | 2013-04-10 | 2014-10-16 | Medhat Kamel Bahr Khalil | Double swash plate pump with adjustable valve ring concept |
Also Published As
Publication number | Publication date |
---|---|
DE102006028623A1 (en) | 2007-01-18 |
JP2007002849A (en) | 2007-01-11 |
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