EP0965754A3 - Displacement control valve for use in a variable displacement compressor - Google Patents

Displacement control valve for use in a variable displacement compressor Download PDF

Info

Publication number
EP0965754A3
EP0965754A3 EP99111736A EP99111736A EP0965754A3 EP 0965754 A3 EP0965754 A3 EP 0965754A3 EP 99111736 A EP99111736 A EP 99111736A EP 99111736 A EP99111736 A EP 99111736A EP 0965754 A3 EP0965754 A3 EP 0965754A3
Authority
EP
European Patent Office
Prior art keywords
chamber
crank chamber
communication passage
valve member
pressure
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.)
Ceased
Application number
EP99111736A
Other languages
German (de)
French (fr)
Other versions
EP0965754A2 (en
Inventor
Yukihiko C/O Sanden Corporation 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
Original Assignee
Sanden 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 Sanden Corp filed Critical Sanden Corp
Publication of EP0965754A2 publication Critical patent/EP0965754A2/en
Publication of EP0965754A3 publication Critical patent/EP0965754A3/en
Ceased 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
    • F04B2027/1809—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
    • F04B2027/1859—Suction pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

A valve for controlling a displacement volume of a compressor having a suction chamber, a discharge chamber, and a crank chamber, has a communication passage communicating between the crank chamber and the discharge chamber and a valve member projecting in the communication passage for controlling an opening degree of the communication passage, the valve member directly receiving a gas pressure of the crank chamber at its projecting end. The valve has a first driving member sensing a difference between the gas pressure between the crank chamber and the suction chamber to drive the valve member to opening of the communication passage, and a second driving member sensing a pressure difference between gas pressures of the discharge chamber and the crank chamber to drive the valve member to closing of the communication passage. In order to cancel the crank chamber gas pressure directly applied onto the valve member, the valve has a pressure room communicating with the communication passage for being introduced with the pressure of the crank chamber. The valve member has an opposite end projecting in the pressure room. The second driving member has a sensing rod which has an end subjected to the discharge chamber gas pressure and an opposite end exposed in the pressure room. The sensing rod pushes the valve member by a force corresponding to a pressure difference between the crank chamber and the discharge chamber.
EP99111736A 1998-06-18 1999-06-17 Displacement control valve for use in a variable displacement compressor Ceased EP0965754A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP17118098 1998-06-18
JP10171180A JP2000009033A (en) 1998-06-18 1998-06-18 Volume control valve for variable displacement compressor

Publications (2)

Publication Number Publication Date
EP0965754A2 EP0965754A2 (en) 1999-12-22
EP0965754A3 true EP0965754A3 (en) 2000-02-02

Family

ID=15918495

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99111736A Ceased EP0965754A3 (en) 1998-06-18 1999-06-17 Displacement control valve for use in a variable displacement compressor

Country Status (2)

Country Link
EP (1) EP0965754A3 (en)
JP (1) JP2000009033A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4644475B2 (en) * 2004-11-30 2011-03-02 株式会社不二工機 Pressure regulating valve
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

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5063829A (en) * 1989-08-09 1991-11-12 Hitachi, Ltd. Variable displacement swash plate type compressor
EP0498552A1 (en) * 1991-01-28 1992-08-12 Sanden Corporation Slant plate type compressor with variable displacement mechanism
US5145326A (en) * 1989-06-16 1992-09-08 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Variable capacity wobble plate type compressor with capacity regulating valve
WO1994016225A1 (en) * 1993-01-11 1994-07-21 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Control valve for a variable displacement refrigerant compressor
US5531572A (en) * 1993-10-15 1996-07-02 Kabushiki Kaisha Toyoda Jidoshokki Seisakushi Capacity control valve for a variable capacity refrigerant compressor
DE19716089A1 (en) * 1996-04-17 1997-11-06 Toyoda Automatic Loom Works Variable displacement compressor for vehicle
EP0854288A2 (en) * 1997-01-21 1998-07-22 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Control valve in variable displacement compressor and method of manufacture
EP0907021A2 (en) * 1997-10-03 1999-04-07 Sanden Corporation Displacement control valve for use in a variable displacement compressor

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5145326A (en) * 1989-06-16 1992-09-08 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Variable capacity wobble plate type compressor with capacity regulating valve
US5063829A (en) * 1989-08-09 1991-11-12 Hitachi, Ltd. Variable displacement swash plate type compressor
EP0498552A1 (en) * 1991-01-28 1992-08-12 Sanden Corporation Slant plate type compressor with variable displacement mechanism
WO1994016225A1 (en) * 1993-01-11 1994-07-21 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Control valve for a variable displacement refrigerant compressor
US5531572A (en) * 1993-10-15 1996-07-02 Kabushiki Kaisha Toyoda Jidoshokki Seisakushi Capacity control valve for a variable capacity refrigerant compressor
DE19716089A1 (en) * 1996-04-17 1997-11-06 Toyoda Automatic Loom Works Variable displacement compressor for vehicle
EP0854288A2 (en) * 1997-01-21 1998-07-22 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Control valve in variable displacement compressor and method of manufacture
EP0907021A2 (en) * 1997-10-03 1999-04-07 Sanden Corporation Displacement control valve for use in a variable displacement compressor

Also Published As

Publication number Publication date
JP2000009033A (en) 2000-01-11
EP0965754A2 (en) 1999-12-22

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