JPS6075796A - Scroll compressor - Google Patents

Scroll compressor

Info

Publication number
JPS6075796A
JPS6075796A JP18300283A JP18300283A JPS6075796A JP S6075796 A JPS6075796 A JP S6075796A JP 18300283 A JP18300283 A JP 18300283A JP 18300283 A JP18300283 A JP 18300283A JP S6075796 A JPS6075796 A JP S6075796A
Authority
JP
Japan
Prior art keywords
pressure
delivery
bypass
valve
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.)
Granted
Application number
JP18300283A
Other languages
Japanese (ja)
Other versions
JPH025917B2 (en
Inventor
Kazutaka Suefuji
Taketoshi Mochizuki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP58183002A priority Critical patent/JPH025917B2/ja
Publication of JPS6075796A publication Critical patent/JPS6075796A/en
Publication of JPH025917B2 publication Critical patent/JPH025917B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/10Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
    • F04C28/16Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using lift valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/28Safety arrangements; Monitoring

Abstract

PURPOSE: To enable the excessive compression to be surely prevented, by switching the pressure in the back part of bypass valves in delivery bypass ports through a selector valve which detects the pressure from a relation between suction pressure, delivery pressure and intermediate pressure.
CONSTITUTION: A fixed scroll 5 provides in its end plate part delivery bypass ports 36a, 36b communicating a compression chamber with a delivery chamber 100, and a back side of delivery bypass valves 32a, 32b forms valve-back pressure chambers 33a, 33b. The pressure applied to the valve-back pressure chambers 33a, 33b is switched by a selector valve device 20. The selector valve device 20 communicates one of its pressure introduction pipes to an intermediate pressure chamber 15 of a compressor and the other pressure introduction pipe to an oil tank 16 of the compressor. Then this difference of pressure causes the bypass valve to open and close, releasing gas from its excessive compression.
COPYRIGHT: (C)1985,JPO&Japio
JP58183002A 1983-10-03 1983-10-03 Expired - Lifetime JPH025917B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58183002A JPH025917B2 (en) 1983-10-03 1983-10-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58183002A JPH025917B2 (en) 1983-10-03 1983-10-03

Publications (2)

Publication Number Publication Date
JPS6075796A true JPS6075796A (en) 1985-04-30
JPH025917B2 JPH025917B2 (en) 1990-02-06

Family

ID=16128034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58183002A Expired - Lifetime JPH025917B2 (en) 1983-10-03 1983-10-03

Country Status (1)

Country Link
JP (1) JPH025917B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5141407A (en) * 1990-10-01 1992-08-25 Copeland Corporation Scroll machine with overheating protection
US5707210A (en) * 1995-10-13 1998-01-13 Copeland Corporation Scroll machine with overheating protection
US7381037B2 (en) 2004-11-04 2008-06-03 Lg Electronics Inc. Apparatus for varying capacity of scroll compressor
EP2055957A1 (en) * 1999-12-06 2009-05-06 Daikin Industries, Ltd. Scroll Compressor
EP2213879A1 (en) * 2009-01-22 2010-08-04 Danfoss Scroll Technologies Scroll compressor with three-step capacity control
US20120177522A1 (en) * 2011-01-07 2012-07-12 Samsung Electronics Co., Ltd. Scroll compressor having a back pressure adjustment device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018076791A (en) * 2016-11-08 2018-05-17 日立ジョンソンコントロールズ空調株式会社 Scroll compressor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5786588A (en) * 1980-11-19 1982-05-29 Hitachi Ltd Enclosed type scroll compressor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5786588A (en) * 1980-11-19 1982-05-29 Hitachi Ltd Enclosed type scroll compressor

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5141407A (en) * 1990-10-01 1992-08-25 Copeland Corporation Scroll machine with overheating protection
US5527158A (en) * 1990-10-01 1996-06-18 Copeland Corporation Scroll machine with overheating protection
US5707210A (en) * 1995-10-13 1998-01-13 Copeland Corporation Scroll machine with overheating protection
EP2055957A1 (en) * 1999-12-06 2009-05-06 Daikin Industries, Ltd. Scroll Compressor
US7381037B2 (en) 2004-11-04 2008-06-03 Lg Electronics Inc. Apparatus for varying capacity of scroll compressor
EP2213879A1 (en) * 2009-01-22 2010-08-04 Danfoss Scroll Technologies Scroll compressor with three-step capacity control
US8328531B2 (en) 2009-01-22 2012-12-11 Danfoss Scroll Technologies, Llc Scroll compressor with three-step capacity control
US20120177522A1 (en) * 2011-01-07 2012-07-12 Samsung Electronics Co., Ltd. Scroll compressor having a back pressure adjustment device
CN102588275A (en) * 2011-01-07 2012-07-18 三星电子株式会社 Scroll compressor having a back pressure adjustment device
US9133845B2 (en) * 2011-01-07 2015-09-15 Samsung Electronics Co., Ltd. Scroll compressor having a back pressure adjustment device
CN102588275B (en) * 2011-01-07 2016-02-10 三星电子株式会社 There is the scroll compressor of back pressure regulator device

Also Published As

Publication number Publication date
JPH025917B2 (en) 1990-02-06

Similar Documents

Publication Publication Date Title
JPS60101295A (en) Compression capacity varying type scroll compressor
JPS6075796A (en) Scroll compressor
JPH02108841A (en) Fuel supply device for internal combustion engine
JPS59218392A (en) Screw compressor
JPH04187861A (en) Fuel-vapor discharge preventing device of engine
JPS6245993A (en) Volume control mechanism for variable delivery compressor
JPS6088811A (en) Lubricating device for internal-combustion engine
JPS57206794A (en) Screw compressor
JPH03258985A (en) Scroll compressor
JPH02264177A (en) Suction check valve for scroll compressor
JPH04136663A (en) Screw freezer
JPH02230985A (en) Parallel compression type refrigerator
JPH02296003A (en) Cylinder control device
JPS57200689A (en) Compressor
JPS57176385A (en) Rotary compressor
JPS5996495A (en) Volume changeable compressor
JPS5898674A (en) Multicylinder compressor
JPS5799290A (en) Air conditioner
JPH04148085A (en) Regenerating device for cryopump
JPS6363954A (en) Fluorescent x-ray analyzer
JPH04324066A (en) Refrigerator
JPS60101291A (en) Vacuum pump device
JPS62197678A (en) Lubrication device for compressor of refrigerator
JPS5688977A (en) Refrigerant compressor
JPS57101174A (en) Three way valve