EP0812987A3 - Variable displacement compressor - Google Patents

Variable displacement compressor Download PDF

Info

Publication number
EP0812987A3
EP0812987A3 EP97109232A EP97109232A EP0812987A3 EP 0812987 A3 EP0812987 A3 EP 0812987A3 EP 97109232 A EP97109232 A EP 97109232A EP 97109232 A EP97109232 A EP 97109232A EP 0812987 A3 EP0812987 A3 EP 0812987A3
Authority
EP
European Patent Office
Prior art keywords
spring
cam plate
compressor
variable displacement
gas circuit
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Withdrawn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
EP97109232A
Other languages
German (de)
French (fr)
Other versions
EP0812987A2 (en
Inventor
Masahiro Kawaguchi
Masanori Sonobe
Tetsuhiko Fukanuma
Hiroyuki Nagai
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
Toyoda Automatic Loom Works Ltd
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, Toyoda Automatic Loom Works Ltd filed Critical Toyoda Jidoshokki Seisakusho KK
Publication of EP0812987A2 publication Critical patent/EP0812987A2/en
Publication of EP0812987A3 publication Critical patent/EP0812987A3/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Withdrawn legal-status Critical Current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
    • F04B27/10—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 having stationary cylinders
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication
    • F04B27/1054—Actuating elements
    • F04B27/1072—Pivot mechanisms
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening

Abstract

An improved variable displacement compressor is disclosed. A compressor has a cam plate (22) that is mounted on a drive shaft (16) for integral rotation therewith. At least one piston (35) is coupled to the cam plate (22). The cam plate (22) is tiltable between its maximum inclining position and its minimum inclining position with respect to an axis of the drive shaft (16). The piston (35) reciprocates in a cylinder bore by a stroke based on an inclined angle of the cam plate (22) and compresses gas that is supplied to the cylinder bore (11a) from an external gas circuit (52) and discharge the compressed gas to the external gas circuit (52) that is connected to the interior of compressor by way of a gas passage (32). The shutter body (28) is urged by a first spring (85, 91) and a second spring (86) in opposite directions. The urging force of the first spring (85, 92) is greater than that of the second spring (86). A shutter body (28) that is biased to disconnect the gas passage (32) from the external gas circuit (52).
EP97109232A 1996-06-07 1997-06-06 Variable displacement compressor Withdrawn EP0812987A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP145765/96 1996-06-07
JP14576596A JP3214354B2 (en) 1996-06-07 1996-06-07 Clutchless variable displacement compressor

Publications (2)

Publication Number Publication Date
EP0812987A2 EP0812987A2 (en) 1997-12-17
EP0812987A3 true EP0812987A3 (en) 1999-06-02

Family

ID=15392651

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97109232A Withdrawn EP0812987A3 (en) 1996-06-07 1997-06-06 Variable displacement compressor

Country Status (5)

Country Link
EP (1) EP0812987A3 (en)
JP (1) JP3214354B2 (en)
KR (1) KR100235510B1 (en)
CN (1) CN1116564C (en)
CA (1) CA2207257A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4333042B2 (en) * 2001-02-20 2009-09-16 株式会社豊田自動織機 Control valve for variable capacity compressor
JP2004060644A (en) 2002-06-05 2004-02-26 Denso Corp Compressor device and its control method
EP2165075B1 (en) 2007-07-13 2011-04-20 Ixetic Bad Homburg GmbH Reciprocating piston engine
JP6083291B2 (en) * 2013-03-27 2017-02-22 株式会社豊田自動織機 Variable capacity swash plate compressor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0628722A1 (en) * 1993-06-08 1994-12-14 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Swash plate type compressor
DE19517333A1 (en) * 1994-05-12 1995-11-16 Toyoda Automatic Loom Works Clutchless variable-displacement compressor with internal coolant duct
DE19517334A1 (en) * 1994-05-12 1995-11-16 Toyoda Automatic Loom Works Controllable displacement-type compressor
EP0716228A1 (en) * 1994-12-07 1996-06-12 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Piston type variable displacement compressor
EP0748937A2 (en) * 1995-06-13 1996-12-18 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Displacement controlling structure for clutchless variable displacement compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0628722A1 (en) * 1993-06-08 1994-12-14 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Swash plate type compressor
DE19517333A1 (en) * 1994-05-12 1995-11-16 Toyoda Automatic Loom Works Clutchless variable-displacement compressor with internal coolant duct
DE19517334A1 (en) * 1994-05-12 1995-11-16 Toyoda Automatic Loom Works Controllable displacement-type compressor
EP0716228A1 (en) * 1994-12-07 1996-06-12 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Piston type variable displacement compressor
EP0748937A2 (en) * 1995-06-13 1996-12-18 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Displacement controlling structure for clutchless variable displacement compressor

Also Published As

Publication number Publication date
EP0812987A2 (en) 1997-12-17
CA2207257A1 (en) 1997-12-07
CN1182194A (en) 1998-05-20
JPH09324752A (en) 1997-12-16
JP3214354B2 (en) 2001-10-02
CN1116564C (en) 2003-07-30
KR100235510B1 (en) 1999-12-15

Similar Documents

Publication Publication Date Title
EP0814262A3 (en) Variable displacement compressor
CA1324361C (en) Variable displacement compressor with biased inclined member
EP0814263A3 (en) Variable displacement compressor and its assembling method
CA2125233A1 (en) Swash Plate Type Compressor
KR960004243B1 (en) Swash plate type compressor for a refrigeration system
EP1600633A3 (en) Piston compressor
EP1039129A3 (en) Device and method for controlling displacement of variable displacement compressor
EP0707182A3 (en) Control apparatus for variable displacement compressor
EP1314888A3 (en) Swash plate compressor having rotary suction valve
CA2128368A1 (en) Bearing Structure Used in a Compressor
EP1281866A3 (en) Vibration damping mechanism for piston type compressor
EP0855505A3 (en) Variable displacement compressor
EP0867617A3 (en) Variable capacity swash plate compressor
EP1174619A3 (en) Swash plate compressor housing
EP1039130A3 (en) Variable displacement compressor
JPH06221264A (en) Reciprocation type compressor
EP1148241A3 (en) Hinge mechanism for a variable displacement compressor
EP1394411A3 (en) Swash plate type variable displacement compressor
EP0812987A3 (en) Variable displacement compressor
EP0990795A3 (en) Variable displacement compressor
EP1281867A3 (en) Variable displacement compressor and method of inhibiting noise for the same
EP0903495A3 (en) Variable capacity swash-plate-type refrigerant compressor
CA2057629A1 (en) Slant plate type compressor with modified low capacity bias spring
EP0905376A3 (en) Variable displacement compressor improved in a lubrication mechanism thereof
EP1122429A3 (en) Variable displacement type compressor with suction control valve

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19970704

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AKX Designation fees paid

Free format text: DE FR GB IT

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

17Q First examination report despatched

Effective date: 20020214

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20020625