US20070183904A1 - Displacement control valve of clutchless variable displacement inclined plate-type compressor - Google Patents

Displacement control valve of clutchless variable displacement inclined plate-type compressor Download PDF

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Publication number
US20070183904A1
US20070183904A1 US11/571,884 US57188405A US2007183904A1 US 20070183904 A1 US20070183904 A1 US 20070183904A1 US 57188405 A US57188405 A US 57188405A US 2007183904 A1 US2007183904 A1 US 2007183904A1
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United States
Prior art keywords
valve
control valve
pressure sensing
hole
sectional area
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
Application number
US11/571,884
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English (en)
Inventor
Yukihiko Taguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanden Corp
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Individual
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Filing date
Publication date
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Assigned to SANDEN CORPORATION reassignment SANDEN CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TAGUCHI, YUKIHIKO
Publication of US20070183904A1 publication Critical patent/US20070183904A1/en
Abandoned legal-status Critical Current

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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
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • 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
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/1809—Controlled pressure
    • F04B2027/1813—Crankcase pressure
    • 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
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/1822—Valve-controlled fluid connection
    • F04B2027/1827—Valve-controlled fluid connection between crankcase and discharge chamber
    • 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
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/184—Valve controlling parameter
    • F04B2027/1854—External parameters
    • 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
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/184—Valve controlling parameter
    • F04B2027/1859—Suction pressure
    • 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
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/1863—Controlled by crankcase pressure with an auxiliary valve, controlled by
    • F04B2027/1881—Suction pressure

Definitions

  • the present invention relates to a displacement control valve of a clutchless variable displacement inclined plate-type compressor which is connected directly to a drive source without using a clutch.
  • Patent Document 1 discloses a displacement control valve of a clutchless variable displacement inclined plate-type compressor for controlling a discharge displacement of the compressor by opening and closing a valve hole formed in a communication path between a discharge chamber and a crank chamber of the compressor, the displacement control valve including the valve hole always communicating with the crank chamber, an inside control valve for opening and closing the valve hole by a valve body operated in response to expansion and contraction of a pressure sensing member for sensing a suction pressure, and an electromagnetic solenoid connected to the inside control valve for switching the inside control valve between an operating condition where the valve body opens and closes the valve hole in response to the expansion and contraction of the pressure sensing member and a non-operating condition where the valve body opens the valve hole independently of the expansion and contraction of the pressure sensing member, and the displacement control valve controls the discharge displacement so that a suction pressure and a discharge pressure have a predetermined correlation.
  • the discharge pressure Pd urges the valve body in a direction of valve closing
  • an object of the present invention is to provide a displacement control valve of a clutchless variable displacement inclined plate-type compressor, which can be made smaller than the displacement control valve disclosed in Patent Document 1.
  • a displacement control valve of a clutchless variable displacement inclined plate-type compressor is provided as a displacement control valve for controlling a discharge displacement of the compressor by opening and closing a communication path between a discharge chamber and a crank chamber of the compressor.
  • the displacement control valve comprises a valve hole formed in the communication path and always communicating with the discharge chamber, an inside control valve for opening and closing the valve hole by a valve body operated in response to expansion and contraction of a pressure sensing member for sensing a suction pressure, and an operation switching device connected to the inside control valve for switching the inside control valve between an operating condition where the valve body opens and closes the valve hole in response to the expansion and contraction of the pressure sensing member and a non-operating condition where the valve body opens the valve hole independently of the expansion and contraction of the pressure sensing member.
  • the force for urging the valve body in a valve opening direction by a discharge pressure Pd can be decreased as compared with that in the displacement control valve disclosed in the aforementioned Patent Document 1, and the switching device for forcibly opening the valve body may be made smaller.
  • a structure is preferably employed wherein the above-described operation switching device has an electromagnetic solenoid, when the electromagnetic solenoid is excited, the inside control valve becomes the operating condition, and when the electromagnetic solenoid is degaussed, the inside control valve becomes the non-operating condition.
  • the control unit for the variable displacement inclined plate-type compressor may be simplified.
  • the electromagnetic solenoid includes a movable core connected to the inside control valve and a positioning member for positioning the inside control valve at an operating position when the electromagnetic solenoid is excited.
  • a positioning member By providing such a positioning member, it becomes possible to position the inside control valve at an operating position by exciting the electromagnetic solenoid, and the switching of the variable displacement inclined plate-type compressor to its operating condition becomes possible by the excitation of the electromagnetic solenoid.
  • the positioning member is formed by one end of the pressure sensing member and an end surface of a case of the electromagnetic solenoid.
  • the electromagnetic solenoid includes a releasing spring for urging a movable core in a direction apart from a fixed core, and when the electromagnetic solenoid is degaussed, the inside control valve becomes the non-operating condition by the releasing spring. Because the releasing spring of the electromagnetic solenoid can turn the inside control valve into the non-operating condition, it is not necessary to provide a spring separately for turning the inside control valve into the non-operating condition, and the structure of the displacement control valve may be simplified.
  • the inside control valve includes a pressure sensing rod which is slidably inserted into a hole formed in a valve housing and communicating with the valve hole and which is connected to the valve body, and a cross-sectional area of the pressure sensing rod is set greater than a cross-sectional area of the valve hole.
  • the inside control valve includes a pressure sensing rod which is slidably inserted into a hole formed in a valve housing and communicating with the valve hole and which is connected to the valve body, and a cross-sectional area of the pressure sensing rod is set smaller than a cross-sectional area of the valve hole.
  • the displacement control valve of a clutchless variable displacement inclined plate-type compressor because the valve hole is always communicated with the discharge chamber, the force for urging the valve body in a valve opening direction by a discharge pressure can be decreased as compared with that in the displacement control valve disclosed in the aforementioned Patent Document 1, and the switching device for forcibly opening the valve body may be made smaller than that in the displacement control valve of Patent Document 1. Therefore, the displacement control valve of a clutchless variable displacement inclined plate-type compressor according to the present invention can be made smaller than the displacement control valve of Patent Document 1.
  • FIG. 1 is a vertical sectional view of a clutchless variable displacement inclined plate-type compressor having a displacement control valve according to an embodiment of the present invention.
  • FIGS. 2A and 2B are sectional views of the displacement control valve according to the embodiment of the present invention, showing operations of an inside control valve when an electromagnetic solenoid is excited
  • FIG. 2C is a sectional view of the displacement control valve, showing an operation of the inside control valve when the electromagnetic solenoid is degaussed
  • FIG. 2D is an enlarged, partial sectional view of the inside control valve.
  • FIGS. 3A and 3B are graphs showing the control property of the displacement control valve according to the embodiment of the present invention, FIG. 3A shows a control property in a case of Sr>Sv, and FIG. 3B shows a control property in a case of Sr ⁇ Sv.
  • FIGS. 1 and 2 depict a variable displacement inclined plate-type compressor having a displacement control valve according to an embodiment of the present invention.
  • a variable displacement inclined plate-type compressor 1 has a main shaft 10 , a rotor 11 fixed to main shaft 10 , and an inclined plate 12 supported by main shaft 10 at a condition capable of changing its inclination angle.
  • Inclined plate 12 is connected to rotor 11 via a link mechanism 13 allowing the change of the inclination angle of inclined plate 12 , and rotates synchronously with rotor 11 and main shaft 10 .
  • Piston 15 is engaged with inclined plate 12 via a pair of shoes 14 sliding on the periphery of inclined plate 12 .
  • Piston 15 is inserted into a cylinder bore 16 a formed in a cylinder block 16 .
  • a plurality of pistons 15 are disposed around main shaft 10 at an interval with each other in the circumferential direction.
  • a crank chamber 17 containing main shaft 10 , rotor 11 and inclined plate 12 is formed by cylinder block 16 and a dish-like front housing 18 .
  • Main shaft 10 extends to outside through front housing 18 .
  • a shaft seal member 19 is disposed for sealing the through portion of main shaft 10 in front housing 18 .
  • a pulley 20 is fixed at a tip portion of main shaft 10 .
  • pulley 20 is connected, for example, to an engine of a vehicle (not shown) via a belt (not shown).
  • a cylinder head 23 forming a suction chamber 21 and a discharge chamber 22 is disposed at a position on a side of cylinder block 16 opposite to the side of front housing 18 .
  • Suction chamber 21 is connected to an evaporator (not shown), which is provided in an external circuit, for example, a refrigeration cycle of an air conditioning system for vehicles, via a suction port (not shown).
  • Discharge chamber 22 is connected to a condenser (not shown), which is provided in an external circuit, for example, a refrigeration cycle of an air conditioning system for vehicles, via a discharge port (not shown).
  • a valve plate 24 formed with suction hole 21 a and discharge hole 22 a communicating with cylinder bore 16 a is provided between cylinder block 16 and cylinder head 23 .
  • a discharge valve and a suction valve (not shown) are attached to the valve plate 24 .
  • Crank chamber 17 and suction chamber 21 are communicated with each other via an orifice hole 24 a formed on valve plate 24 .
  • Front housing 18 , cylinder block 16 , valve plate 24 and cylinder head 23 are integrally fastened by a plurality of through bolts 25 disposed at intervals along the circumference with a center of main shaft 10 .
  • a displacement control valve 2 for controlling the discharge displacement of variable displacement inclined plate-type compressor 1 is fitted into and fixed in a concave portion 26 which is formed in cylinder head 23 at a position adjacent to discharge chamber 22 .
  • displacement control valve 2 has an inside control valve 100 and an electromagnetic solenoid 120 .
  • Inside control valve 100 has a cylindrical valve housing 101 .
  • Three closed spaces 27 a, 27 b and 27 c are defined around valve housing 101 by two O-rings 101 a and 101 b tightly fitted onto the periphery of valve housing 101 and one O-ring 121 a tightly fitted onto the periphery of a case 121 of electromagnetic solenoid 120 .
  • a lateral partition wall 104 is formed for dividing the inside space of valve housing 101 into a pressure sensing chamber 102 on one end side and a valve chamber 103 on the other end side.
  • a rod insertion hole 105 communicating with pressure sensing chamber 102 and a valve hole 106 communicating with valve chamber 103 are formed on lateral partition wall 104 .
  • Rod insertion hole 105 and valve hole 106 are disposed on the same axis and communicated with each other.
  • a communication hole 107 extending in the radial direction through lateral partition wall 104 is formed in lateral partition wall 104 passing through the communicating portion between rod insertion hole 105 and valve hole 106 .
  • Pressure sensing chamber 102 communicates with suction chamber 21 via a communication hole 108 formed on the circumferential wall of valve housing 101 , closed space 27 c and a communication path 23 a formed in cylinder head 23 .
  • Communication hole 107 communicates with discharge chamber 22 via closed space 27 b and a communication path 23 b formed in cylinder head 23 .
  • Valve hole 106 communicating with communication hole 107 always communicates with discharge chamber 22 .
  • Valve chamber 103 communicates with crank chamber 17 via closed space 27 a, a communication path 23 c formed in cylinder head 23 and communication path 16 b formed in cylinder block 16 .
  • One end of a pressure sensing rod 110 is connected to one end 109 a of bellows assembly 109 , and the other end of pressure sensing rod 110 is slidably inserted into rod insertion hole 105 .
  • a small-diameter rod 111 extending from the other end of pressure sensing rod 110 is inserted into valve hole 106 at a movable condition with a gap.
  • a spring 113 for urging a valve body 112 in a direction approaching valve hole 106 is disposed in valve chamber 103 .
  • Inside control valve 100 is formed by a series of structures from valve housing 101 to spring 113 .
  • Electromagnetic solenoid 120 has a fixed core 122 disposed in case 121 , a movable core 123 disposed facing its one end to one end of fixed core 122 , a releasing spring 124 for urging movable core 123 in a direction apart from the fixed core, and an electromagnetic coil 125 surrounding fixed core 122 and movable core 123 .
  • the space for containing movable core 123 is communicated with pressure sensing chamber 102 , and is in a condition of the same pressure as that in pressure sensing chamber 102 .
  • the other end 109 a of bellows assembly 109 is connected to the other end of movable core 123 .
  • the other end 109 a is disposed so as to be able to engage with an end surface inner edge 121 a near the above-described one end of case 121 of electromagnetic solenoid 120 .
  • valve hole 106 the opening/closing of valve hole 106 is repeated so that the suction pressure becomes the set value, and the discharge displacement of variable displacement inclined plate-type compressor 1 is variably controlled.
  • variable displacement inclined plate-type compressor 1 In this state, high-pressure refrigerant gas is supplied from discharge chamber 22 to crank chamber 17 , the crank chamber pressure increases, the inclination angle of the inclined plate decreases down to the minimum inclination angle, the discharge displacement of variable displacement inclined plate-type compressor 1 is decreased down to the minimum displacement, and it is maintained at the minimum displacement. Because the discharge displacement of variable displacement inclined plate-type compressor 1 can be minimized by the degaussing of electromagnetic coil 125 , displacement control valve 2 can be used for a clutchless variable displacement inclined plate-type compressor directly connected to an external drive source without using a clutch.
  • displacement control valve 2 because the gradient of the correlation line of Ps relative to Pd is ⁇ (Sr ⁇ Sv)/ ⁇ Sb ⁇ (Sr ⁇ Sv) ⁇ , if the sectional area Sr ofthe pressure sensing rod is changed, even if the cross-sectional area Sv of the valve hole and the effective cross-sectional area Sb of the bellows assembly, which are base specifications of displacement control valve 2 , are not changed, the gradient can be changed. Therefore, the property of the displacement control can be easily changed.
  • displacement control valve 2 can switch clutchless variable displacement inclined plate-type compressor 1 between a displacement control condition and a minimum displacement condition by excitation/degaussing of electromagnetic solenoid 120 , by using this displacement control valve 2 , the control unit for variable displacement inclined plate-type compressor 1 may be simplified.
  • displacement control valve 2 because provided is the positioning member formed by the other end 109 b of bellows assembly 109 and the end surface inner edge 121 b of case 121 of electromagnetic solenoid 120 , it is possible to position inside control valve 100 at its operating position by the excitation of electromagnetic solenoid 120 , and it is possible to switch variable displacement inclined plate-type compressor 1 to the displacement control condition by the excitation of electromagnetic solenoid 120 .
  • the positioning member is formed by the other end 109 b of bellows assembly 109 and the end surface inner edge 121 b of case 121 of electromagnetic solenoid 120 , it is not necessary to provide a particular positioning member separately, and the valve structure is simplified.
  • variable displacement inclined plate-type compressor 1 when the cross-sectional area Sr of pressure sensing rod 110 is set smaller than the cross-sectional area Sv of the valve hole. as shown in FIG. 3B , because the control property is realized wherein the suction pressure Ps increases when the discharge pressure Pd increases, the discharge displacement of variable displacement inclined plate-type compressor 1 decreases in a region of a high discharge pressure. As a result, occurrence of a condition, in which variable displacement inclined plate-type compressor 1 operates at an excessive load and it may be damaged, may be prevented.
  • the positioning member is formed by the other end 109 b of bellows assembly 109 and the end surface inner edge 121 b of case 121 of electromagnetic solenoid 120 , the positioning member may be formed by the attractive portions of movable core 123 and fixed core 122 . Moreover, an adjusting member for adjusting the urging force of spring 113 from outside may be provided.
  • the present invention can be applied broadly for displacement control valves of clutchless variable displacement inclined plate-type compressors.
  • it is suitable as a displacement control valve for a compressor provided in a refrigeration cycle of an air conditioning system for vehicles.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
US11/571,884 2004-07-13 2005-07-11 Displacement control valve of clutchless variable displacement inclined plate-type compressor Abandoned US20070183904A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004-206550 2004-07-13
JP2004206550A JP2006029150A (ja) 2004-07-13 2004-07-13 クラッチレス可変容量斜板式圧縮機の容量制御弁
PCT/JP2005/012760 WO2006006560A1 (ja) 2004-07-13 2005-07-11 クラッチレス可変容量斜板式圧縮機の容量制御弁

Publications (1)

Publication Number Publication Date
US20070183904A1 true US20070183904A1 (en) 2007-08-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
US11/571,884 Abandoned US20070183904A1 (en) 2004-07-13 2005-07-11 Displacement control valve of clutchless variable displacement inclined plate-type compressor

Country Status (6)

Country Link
US (1) US20070183904A1 (de)
EP (1) EP1775470B1 (de)
JP (1) JP2006029150A (de)
CN (1) CN100507267C (de)
DE (1) DE602005013969D1 (de)
WO (1) WO2006006560A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080247883A1 (en) * 2006-08-10 2008-10-09 Naoya Yokomachi Displacement control valve for variable displacement compressor
US20110182753A1 (en) * 2008-09-12 2011-07-28 Yukihiko Taguchi Capacity Control Valve, Variable Capacity Compressor and Capacity Control System Therefor
US20160053755A1 (en) * 2013-03-22 2016-02-25 Sanden Holdings Corporation Control Valve And Variable Capacity Compressor Provided With Said Control Valve

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101815866B (zh) * 2007-10-02 2012-07-04 三电有限公司 可变容量压缩机
JP2010024874A (ja) * 2008-07-16 2010-02-04 Tgk Co Ltd 可変容量圧縮機用制御弁
JP5055444B2 (ja) * 2010-06-04 2012-10-24 株式会社鷺宮製作所 感圧制御弁
JP2014055626A (ja) * 2012-09-12 2014-03-27 Saginomiya Seisakusho Inc 感圧制御弁
CN107701411A (zh) * 2017-11-13 2018-02-16 苏州新智机电工业有限公司 汽车空调变排量压缩机用单通道气动控制阀

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US20010003573A1 (en) * 1999-12-09 2001-06-14 Kazuya Kimura Control valve and variable capacity type compressor having control valve
US20020004012A1 (en) * 2000-07-06 2002-01-10 Kazuya Kimura Control valve for variable displacement compressor
US20020018723A1 (en) * 2000-08-08 2002-02-14 Minoru Mera Control valve
US6352416B1 (en) * 1999-03-15 2002-03-05 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Device and method for controlling displacement of variable displacement compressor
US20020157410A1 (en) * 2001-04-27 2002-10-31 Ken Suitou Vehicle air conditioner and method for controlling vehicle air conditioner
US20030145615A1 (en) * 2002-02-04 2003-08-07 Eagle Industry Co. Ltd. Capacity control valve

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KR970004811B1 (ko) * 1993-06-08 1997-04-04 가부시끼가이샤 도요다 지도쇽끼 세이샤꾸쇼 무클러치 편측 피스톤식 가변 용량 압축기 및 그 용량 제어방법
JP3152015B2 (ja) * 1993-06-08 2001-04-03 株式会社豊田自動織機製作所 クラッチレス片側ピストン式可変容量圧縮機及びその容量制御方法
JP3254853B2 (ja) * 1993-11-05 2002-02-12 株式会社豊田自動織機 クラッチレス片側ピストン式可変容量圧縮機
JP3585150B2 (ja) * 1997-01-21 2004-11-04 株式会社豊田自動織機 可変容量圧縮機用制御弁
JP3993708B2 (ja) * 1998-10-08 2007-10-17 株式会社テージーケー 容量可変圧縮機の容量制御装置
JP3899719B2 (ja) * 1999-01-29 2007-03-28 株式会社豊田自動織機 容量可変型圧縮機の制御弁
JP4395239B2 (ja) * 2000-05-19 2010-01-06 株式会社鷺宮製作所 容量可変型圧縮機用制御弁
JP2002303263A (ja) * 2001-04-06 2002-10-18 Fuji Koki Corp 可変容量型圧縮機用制御弁
JP2004278511A (ja) * 2002-10-23 2004-10-07 Tgk Co Ltd 可変容量圧縮機用制御弁
JP2005061253A (ja) * 2003-08-08 2005-03-10 Tgk Co Ltd 可変容量圧縮機の制御弁

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6352416B1 (en) * 1999-03-15 2002-03-05 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Device and method for controlling displacement of variable displacement compressor
US20010003573A1 (en) * 1999-12-09 2001-06-14 Kazuya Kimura Control valve and variable capacity type compressor having control valve
US20020004012A1 (en) * 2000-07-06 2002-01-10 Kazuya Kimura Control valve for variable displacement compressor
US20020018723A1 (en) * 2000-08-08 2002-02-14 Minoru Mera Control valve
US6514049B2 (en) * 2000-08-08 2003-02-04 Kabushiki Kaisha Toyota Jidoshokki Compressor control valve with two independently operated check valves, wherein the crank chamber pressure is the control pressure, and the monitor pressure is the suction pressure
US20020157410A1 (en) * 2001-04-27 2002-10-31 Ken Suitou Vehicle air conditioner and method for controlling vehicle air conditioner
US20030145615A1 (en) * 2002-02-04 2003-08-07 Eagle Industry Co. Ltd. Capacity control valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080247883A1 (en) * 2006-08-10 2008-10-09 Naoya Yokomachi Displacement control valve for variable displacement compressor
US20110182753A1 (en) * 2008-09-12 2011-07-28 Yukihiko Taguchi Capacity Control Valve, Variable Capacity Compressor and Capacity Control System Therefor
US20160053755A1 (en) * 2013-03-22 2016-02-25 Sanden Holdings Corporation Control Valve And Variable Capacity Compressor Provided With Said Control Valve

Also Published As

Publication number Publication date
EP1775470A4 (de) 2007-08-08
DE602005013969D1 (de) 2009-05-28
WO2006006560A1 (ja) 2006-01-19
CN100507267C (zh) 2009-07-01
CN1985090A (zh) 2007-06-20
EP1775470B1 (de) 2009-04-15
JP2006029150A (ja) 2006-02-02
EP1775470A1 (de) 2007-04-18

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