EP1026398A3 - Control valve for variable displacement compressors - Google Patents

Control valve for variable displacement compressors Download PDF

Info

Publication number
EP1026398A3
EP1026398A3 EP00101971A EP00101971A EP1026398A3 EP 1026398 A3 EP1026398 A3 EP 1026398A3 EP 00101971 A EP00101971 A EP 00101971A EP 00101971 A EP00101971 A EP 00101971A EP 1026398 A3 EP1026398 A3 EP 1026398A3
Authority
EP
European Patent Office
Prior art keywords
crank
pressure
valve
suction
chamber
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Withdrawn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
EP00101971A
Other languages
German (de)
French (fr)
Other versions
EP1026398A2 (en
Inventor
Masaki Ota
Masahiro Kawaguchi
Ken Suitou
Taku Adaniya
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
Toyoda Jidoshokki Seisakusho KK
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 Toyoda Jidoshokki Seisakusho KK filed Critical Toyoda Jidoshokki Seisakusho KK
Publication of EP1026398A2 publication Critical patent/EP1026398A2/en
Publication of EP1026398A3 publication Critical patent/EP1026398A3/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Withdrawn legal-status Critical Current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
    • F04B2027/1809—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
    • F04B2027/1831—Valve-controlled fluid connection between crankcase and suction 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
    • F04B2027/1845—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
    • F04B2027/184—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

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 (50) located in a compressor to change the displacement of the compressor. The compressor includes a crank chamber (3), the pressure of which is a crank pressure, a suction chamber (8), the pressure of which is a suction pressure. A bleeding passage (53,57,58,59) connects the crank chamber (3) to the suction chamber (8). The control valve (50) is located on the bleeding passage (53,57,58,59) to control the crank pressure by controlling the flow of gas from the crank chamber (3) to the suction chamber (8). A valve seat (54) is located between a crank pressure zone and a suction pressure zone. The valve seat (54) defines a valve hole (55) that connects the crank pressure zone to the suction pressure zone. A valve body (60) is selectively engaged with and disengaged from the valve seat (54) to control an opening size of the valve hole (55). A sensing member (61) is located in the crank pressure zone. The sensing member (61) always urges the valve body (60) toward the valve seat (54), and the sensing member (61) moves in accordance with the crank pressure. The sensing member (61) has a predetermined effective area that is affected by the crank pressure. The effective area is approximately the same the cross sectional area of the valve hole (55). The control valve (50) for compressors that is able to set the suction pressure with precision.
EP00101971A 1999-02-02 2000-02-01 Control valve for variable displacement compressors Withdrawn EP1026398A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2489699 1999-02-02
JP2489699 1999-02-02
JP28982799 1999-10-12
JP28982799A JP3925006B2 (en) 1999-02-02 1999-10-12 Control valve for variable capacity compressor

Publications (2)

Publication Number Publication Date
EP1026398A2 EP1026398A2 (en) 2000-08-09
EP1026398A3 true EP1026398A3 (en) 2001-01-03

Family

ID=26362474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00101971A Withdrawn EP1026398A3 (en) 1999-02-02 2000-02-01 Control valve for variable displacement compressors

Country Status (2)

Country Link
EP (1) EP1026398A3 (en)
JP (1) JP3925006B2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002155858A (en) * 2000-09-08 2002-05-31 Toyota Industries Corp Control valve for variable displacement compressor
JP2002089442A (en) * 2000-09-08 2002-03-27 Toyota Industries Corp Control valve for variable displacement compressor
JP4333042B2 (en) * 2001-02-20 2009-09-16 株式会社豊田自動織機 Control valve for variable capacity compressor
JP4506044B2 (en) 2001-07-04 2010-07-21 株式会社豊田自動織機 Control valve and variable displacement compressor
JP3733899B2 (en) * 2001-12-06 2006-01-11 株式会社豊田自動織機 Solenoid valve of variable capacity compressor and method of manufacturing the same
JP4130566B2 (en) * 2002-09-25 2008-08-06 株式会社テージーケー Capacity control valve for variable capacity compressor
JP4316955B2 (en) 2003-08-11 2009-08-19 イーグル工業株式会社 Capacity control valve
JP4913734B2 (en) * 2005-06-22 2012-04-11 イーグル工業株式会社 Capacity control valve
US8449266B2 (en) * 2006-03-29 2013-05-28 Eagle Industry Co., Ltd. Control valve for variable displacement compressor
JP5269391B2 (en) * 2007-11-02 2013-08-21 株式会社不二工機 Control valve for variable displacement compressor
JP6064131B2 (en) * 2012-10-17 2017-01-25 株式会社テージーケー Control valve for variable capacity compressor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405878A1 (en) * 1989-06-28 1991-01-02 Sanden Corporation Slant plate type compressor with variable displacement mechanism
US5174727A (en) * 1987-11-30 1992-12-29 Sanden Corporation Slant plate type compressor with variable displacement mechanism
US5181831A (en) * 1991-05-22 1993-01-26 Zexel Corporation Variable capacity wobble plate compressor
DE19706587A1 (en) * 1996-02-20 1997-08-21 Toyoda Automatic Loom Works Coolant compressor with variable capacity for refrigerating system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3131036B2 (en) 1992-07-07 2001-01-31 株式会社鷺宮製作所 Solenoid proportional control valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5174727A (en) * 1987-11-30 1992-12-29 Sanden Corporation Slant plate type compressor with variable displacement mechanism
EP0405878A1 (en) * 1989-06-28 1991-01-02 Sanden Corporation Slant plate type compressor with variable displacement mechanism
US5181831A (en) * 1991-05-22 1993-01-26 Zexel Corporation Variable capacity wobble plate compressor
DE19706587A1 (en) * 1996-02-20 1997-08-21 Toyoda Automatic Loom Works Coolant compressor with variable capacity for refrigerating system

Also Published As

Publication number Publication date
JP2000291542A (en) 2000-10-17
JP3925006B2 (en) 2007-06-06
EP1026398A2 (en) 2000-08-09

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