EP1429026A3 - Control valve for a variable displacement compressor - Google Patents

Control valve for a variable displacement compressor Download PDF

Info

Publication number
EP1429026A3
EP1429026A3 EP03028111A EP03028111A EP1429026A3 EP 1429026 A3 EP1429026 A3 EP 1429026A3 EP 03028111 A EP03028111 A EP 03028111A EP 03028111 A EP03028111 A EP 03028111A EP 1429026 A3 EP1429026 A3 EP 1429026A3
Authority
EP
European Patent Office
Prior art keywords
chamber
hole
control valve
valve
variable displacement
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.)
Withdrawn
Application number
EP03028111A
Other languages
German (de)
French (fr)
Other versions
EP1429026A2 (en
Inventor
Satoshi Umemura
Tatsuya Hirose
Yuji Hashimoto
Ryo Matsubara
Junya Suzuki
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.)
Toyota Industries Corp
Original Assignee
Toyota Industries Corp
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 Toyota Industries Corp filed Critical Toyota Industries Corp
Publication of EP1429026A2 publication Critical patent/EP1429026A2/en
Publication of EP1429026A3 publication Critical patent/EP1429026A3/en
Withdrawn legal-status Critical Current

Links

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
    • F04B2027/1822—Valve-controlled fluid connection
    • F04B2027/1831—Valve-controlled fluid connection between crankcase and suction chamber

Landscapes

  • 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)

Abstract

A control valve includes a separation portion, which is part of a rod, blocks a through hole that connects a valve chamber and a second chamber with each other. Therefore, the pressure of the second chamber is not directly affected by changes in the opening degree of the control valve. The second chamber and a valve hole forming a part of the through hole are both connected to a second pressure zone through an upstream section of a supply passage. This prevents creation of pressure difference between the valve hole and the second chamber, and thus prevents entry of foreign particles in sliding portions between the through hole and the rod.
EP03028111A 2002-12-06 2003-12-05 Control valve for a variable displacement compressor Withdrawn EP1429026A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002355593A JP2004190495A (en) 2002-12-06 2002-12-06 Variable displacement structure of variable displacement compressor
JP2002355593 2002-12-06

Publications (2)

Publication Number Publication Date
EP1429026A2 EP1429026A2 (en) 2004-06-16
EP1429026A3 true EP1429026A3 (en) 2005-09-07

Family

ID=32322052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03028111A Withdrawn EP1429026A3 (en) 2002-12-06 2003-12-05 Control valve for a variable displacement compressor

Country Status (3)

Country Link
US (1) US20040165994A1 (en)
EP (1) EP1429026A3 (en)
JP (1) JP2004190495A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006200435A (en) * 2005-01-20 2006-08-03 Fuji Koki Corp Control valve for variable displacement compressor
JP2007071114A (en) * 2005-09-07 2007-03-22 Sanden Corp Variable displacement compressor for air-conditioning system for vehicle
JP2007138785A (en) * 2005-11-16 2007-06-07 Toyota Industries Corp Control device for vehicular refrigeration circuit, variable displacement compressor and control valve for variable displacement compressor
JP2008107282A (en) * 2006-10-27 2008-05-08 Toyota Industries Corp Refrigerant flow rate detection structure in compressor
JP2008121636A (en) * 2006-11-15 2008-05-29 Toyota Industries Corp Refrigerant flow volume detecting structure in compressor
JP6932146B2 (en) 2017-01-26 2021-09-08 イーグル工業株式会社 Capacity control valve
EP3584441B1 (en) 2017-02-18 2022-08-31 Eagle Industry Co., Ltd. Capacity control valve
US11542931B2 (en) 2017-11-15 2023-01-03 Eagle Industry Co., Ltd. Capacity control valve and capacity control valve control method
US11512786B2 (en) 2017-11-30 2022-11-29 Eagle Industry Co., Ltd. Capacity control valve and control method for capacity control valve
EP3722603B1 (en) 2017-12-08 2024-02-07 Eagle Industry Co., Ltd. Capacity control valve and method for controlling same
EP3726054B1 (en) 2017-12-14 2024-02-07 Eagle Industry Co., Ltd. Capacity control valve and method for controlling capacity control valve
JP7171616B2 (en) 2017-12-27 2022-11-15 イーグル工業株式会社 CAPACITY CONTROL VALVE AND CONTROL METHOD FOR CAPACITY CONTROL VALVE
EP3734070B1 (en) 2017-12-27 2024-03-20 Eagle Industry Co., Ltd. Capacity control valve
WO2019142931A1 (en) 2018-01-22 2019-07-25 イーグル工業株式会社 Capacity control valve
KR102541900B1 (en) * 2018-11-26 2023-06-13 이구루코교 가부시기가이샤 capacity control valve
WO2022044880A1 (en) 2020-08-24 2022-03-03 イーグル工業株式会社 Valve

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1081378A2 (en) * 1999-08-31 2001-03-07 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Control valve for variable displacement compressor
EP1179679A2 (en) * 2000-08-07 2002-02-13 Kabushiki Kaisha Toyota Jidoshokki Control valve of variable displacement compressor
EP1186778A2 (en) * 2000-09-08 2002-03-13 Kabushiki Kaisha Toyota Jidoshokki Control valve for variable displacement type compressor
EP1207302A2 (en) * 2000-11-08 2002-05-22 Kabushiki Kaisha Toyota Jidoshokki Control apparatus for variable displacement compressor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000220763A (en) * 1999-01-29 2000-08-08 Toyota Autom Loom Works Ltd Capacity control valve for variable displacement compressor
JP3991556B2 (en) * 1999-10-04 2007-10-17 株式会社豊田自動織機 Control valve for variable capacity compressor
JP3735512B2 (en) * 2000-05-10 2006-01-18 株式会社豊田自動織機 Control valve for variable capacity compressor
JP2002089442A (en) * 2000-09-08 2002-03-27 Toyota Industries Corp Control valve for variable displacement compressor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1081378A2 (en) * 1999-08-31 2001-03-07 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Control valve for variable displacement compressor
EP1179679A2 (en) * 2000-08-07 2002-02-13 Kabushiki Kaisha Toyota Jidoshokki Control valve of variable displacement compressor
EP1186778A2 (en) * 2000-09-08 2002-03-13 Kabushiki Kaisha Toyota Jidoshokki Control valve for variable displacement type compressor
EP1207302A2 (en) * 2000-11-08 2002-05-22 Kabushiki Kaisha Toyota Jidoshokki Control apparatus for variable displacement compressor

Also Published As

Publication number Publication date
US20040165994A1 (en) 2004-08-26
EP1429026A2 (en) 2004-06-16
JP2004190495A (en) 2004-07-08

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