EP0855506A3 - Variable-displacement compressor - Google Patents

Variable-displacement compressor Download PDF

Info

Publication number
EP0855506A3
EP0855506A3 EP98101411A EP98101411A EP0855506A3 EP 0855506 A3 EP0855506 A3 EP 0855506A3 EP 98101411 A EP98101411 A EP 98101411A EP 98101411 A EP98101411 A EP 98101411A EP 0855506 A3 EP0855506 A3 EP 0855506A3
Authority
EP
European Patent Office
Prior art keywords
variable
crank chamber
communication path
chamber
displacement compressor
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.)
Granted
Application number
EP98101411A
Other languages
German (de)
French (fr)
Other versions
EP0855506B1 (en
EP0855506A2 (en
Inventor
Yukihiko Taguchi
Kiyoshi Terauchi
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 EP0855506A2 publication Critical patent/EP0855506A2/en
Publication of EP0855506A3 publication Critical patent/EP0855506A3/en
Application granted granted Critical
Publication of EP0855506B1 publication Critical patent/EP0855506B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04B2027/1827—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

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 variable-displacement compressor comprises a compressor housing having a crank chamber, a discharge chamber, and a suction chamber. The variable-displacement compressor comprises a driving shaft rotatably supported by the compressor housing to be located in the crank chamber and a slant plate located in the crank chamber to be coupled to the driving shaft. The slant plate has a variable slant angle for the driving shaft. The variable-displacement compressor varies the variable slant angle in accordance with a pressure difference between the crank chamber and the suction chamber to control a compression capacity. The variable-displacement compressor further comprises a first communication path through which the crank chamber communicates with the discharge chamber, a first valve device for adjusting the opening area of the first communication path to control the pressure in the crank chamber, a second communication path through which the crank chamber communicates with the suction chamber, and a second valve device for adjusting the opening area of the second communication path in accordance with the pressure difference. More particularly, the second valve device perfectly closes the second communication path when the pressure difference becomes a predetermined pressure difference.
EP19980101411 1997-01-27 1998-01-27 Variable-displacement compressor Expired - Lifetime EP0855506B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP9012201A JPH10205443A (en) 1997-01-27 1997-01-27 Variable displacement compressor
JP12201/97 1997-01-27
JP1220197 1997-01-27

Publications (3)

Publication Number Publication Date
EP0855506A2 EP0855506A2 (en) 1998-07-29
EP0855506A3 true EP0855506A3 (en) 1999-01-07
EP0855506B1 EP0855506B1 (en) 2001-11-14

Family

ID=11798799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980101411 Expired - Lifetime EP0855506B1 (en) 1997-01-27 1998-01-27 Variable-displacement compressor

Country Status (3)

Country Link
EP (1) EP0855506B1 (en)
JP (1) JPH10205443A (en)
DE (1) DE69802444T2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1182296A (en) * 1997-09-05 1999-03-26 Sanden Corp Variable delivery compressor
JPH1182300A (en) * 1997-09-05 1999-03-26 Sanden Corp Variable delivery compressor
JP4181274B2 (en) 1998-08-24 2008-11-12 サンデン株式会社 Compressor
JP2000199479A (en) * 1998-10-30 2000-07-18 Toyota Autom Loom Works Ltd Variable capacity compressor
JP3479233B2 (en) 1999-03-11 2003-12-15 サンデン株式会社 Cam mechanism of variable capacity swash plate type compressor
JP3933369B2 (en) * 2000-04-04 2007-06-20 サンデン株式会社 Piston type variable capacity compressor
JP2003028059A (en) 2001-07-13 2003-01-29 Toyota Industries Corp Throttle structure of displacement control of variable displacement type compressor
JP4412184B2 (en) 2005-01-27 2010-02-10 株式会社豊田自動織機 Variable capacity compressor
EP3236068A4 (en) * 2014-12-18 2018-06-06 Valeo Japan Co., Ltd. Variable capacity compressor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702677A (en) * 1986-03-06 1987-10-27 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Variable displacement wobble plate type compressor with improved wobble angle return system
US4723891A (en) * 1986-04-09 1988-02-09 Toyoda Jidoshokki Seisakusho Kabushiki Kaisha Variable displacement wobble plate type compressor with improved crankcase pressure control system
JPS63134181U (en) * 1987-02-25 1988-09-02
US5145326A (en) * 1989-06-16 1992-09-08 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Variable capacity wobble plate type compressor with capacity regulating valve
US5318410A (en) * 1991-10-16 1994-06-07 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Variable displacement compressor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2767075B2 (en) 1990-07-16 1998-06-18 アネスト岩田株式会社 Two-part spray gun

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702677A (en) * 1986-03-06 1987-10-27 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Variable displacement wobble plate type compressor with improved wobble angle return system
US4723891A (en) * 1986-04-09 1988-02-09 Toyoda Jidoshokki Seisakusho Kabushiki Kaisha Variable displacement wobble plate type compressor with improved crankcase pressure control system
JPS63134181U (en) * 1987-02-25 1988-09-02
US5145326A (en) * 1989-06-16 1992-09-08 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Variable capacity wobble plate type compressor with capacity regulating valve
US5318410A (en) * 1991-10-16 1994-06-07 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Variable displacement compressor

Also Published As

Publication number Publication date
JPH10205443A (en) 1998-08-04
DE69802444D1 (en) 2001-12-20
EP0855506B1 (en) 2001-11-14
EP0855506A2 (en) 1998-07-29
DE69802444T2 (en) 2002-08-01

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