JPS5519942A - Compressor - Google Patents

Compressor

Info

Publication number
JPS5519942A
JPS5519942A JP9236878A JP9236878A JPS5519942A JP S5519942 A JPS5519942 A JP S5519942A JP 9236878 A JP9236878 A JP 9236878A JP 9236878 A JP9236878 A JP 9236878A JP S5519942 A JPS5519942 A JP S5519942A
Authority
JP
Japan
Prior art keywords
release
gas
valve
reverse flow
full load
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.)
Pending
Application number
JP9236878A
Other languages
Japanese (ja)
Inventor
Katsuhiro Akatsuchi
Tsuneo Koga
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9236878A priority Critical patent/JPS5519942A/en
Publication of JPS5519942A publication Critical patent/JPS5519942A/en
Pending 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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/70—Safety, emergency conditions or requirements
    • F04C2270/72—Safety, emergency conditions or requirements preventing reverse rotation

Abstract

PURPOSE: To reliably prevent reverse flow of gas irrespective of whether the compressor is in full load operation or reduced capacity operation and improve the compression efficiency by providing a valve mechanism for preventing reverse flow of gas from a release circuit into a cylinder chamber.
CONSTITUTION: When operating the compressor under a reduced capacity condition by reducing the load in a freezing cycle, an electromagnetic valve 26 is opened. When a release hole 17 is brought to a position on the discharge chamber side with the excentric rotation of a roller 12, part of the gas being compressed flows into a release duct 30 by forcing down a release valve 22. When the release hole 17 is brought to a position on the intake chamber side, the release valve 22 is displaced to close the release valve 17, thus preventing the reverse flow of gas into a cylinder chamber 10 similar to the case of the full load time. In this way, the compression efficiency can be improved. Meanwhile, the compressed gas discharged into a sealed vessel 5 is reduced compared to the case of the full load operation, at which time the electromagnetic valve 26 is closed, to an extent corresponding to a portion led to the release duct 30, thus meeting the requirement for reduction of the freezing capacity.
COPYRIGHT: (C)1980,JPO&Japio
JP9236878A 1978-07-28 1978-07-28 Compressor Pending JPS5519942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9236878A JPS5519942A (en) 1978-07-28 1978-07-28 Compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9236878A JPS5519942A (en) 1978-07-28 1978-07-28 Compressor

Publications (1)

Publication Number Publication Date
JPS5519942A true JPS5519942A (en) 1980-02-13

Family

ID=14052470

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9236878A Pending JPS5519942A (en) 1978-07-28 1978-07-28 Compressor

Country Status (1)

Country Link
JP (1) JPS5519942A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4897955A (en) * 1972-02-22 1973-12-13
JPH02166120A (en) * 1988-12-19 1990-06-26 Asahi Chem Ind Co Ltd Production of polyacetal copolymer
JPH03170526A (en) * 1989-08-09 1991-07-24 Toray Ind Inc Polyoxymethylene copolymer for injection molding
EP1344938A3 (en) * 2002-03-13 2004-06-09 Sanyo Electric Co., Ltd. Multistage rotary compressor and refrigeration circuit system
CN103541900A (en) * 2012-07-12 2014-01-29 珠海格力节能环保制冷技术研究中心有限公司 Rotary type compressor, refrigerant circulation system and control method thereof
CN104976128A (en) * 2015-07-15 2015-10-14 广东美芝制冷设备有限公司 Rotary compressor and compression assembly thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4897955A (en) * 1972-02-22 1973-12-13
JPS5717895B2 (en) * 1972-02-22 1982-04-13
JPH02166120A (en) * 1988-12-19 1990-06-26 Asahi Chem Ind Co Ltd Production of polyacetal copolymer
JPH03170526A (en) * 1989-08-09 1991-07-24 Toray Ind Inc Polyoxymethylene copolymer for injection molding
EP1344938A3 (en) * 2002-03-13 2004-06-09 Sanyo Electric Co., Ltd. Multistage rotary compressor and refrigeration circuit system
CN103541900A (en) * 2012-07-12 2014-01-29 珠海格力节能环保制冷技术研究中心有限公司 Rotary type compressor, refrigerant circulation system and control method thereof
CN104976128A (en) * 2015-07-15 2015-10-14 广东美芝制冷设备有限公司 Rotary compressor and compression assembly thereof
CN104976128B (en) * 2015-07-15 2018-01-23 广东美芝制冷设备有限公司 Rotary compressor and its compression assembly

Similar Documents

Publication Publication Date Title
JPS5776287A (en) Scroll compressor
JPS56121888A (en) Oil-cooled compressor
JPS56580A (en) Oil-cooled compressor
JPS5519942A (en) Compressor
JPS5371725A (en) Exhaust gas re-circulating device for internal combustion engine
JPS57102596A (en) Rotary compressor
JPS57176385A (en) Rotary compressor
JPS575580A (en) Volume regulator for rotary compressor
JPS56106032A (en) Apparatus for controlling amount of by-pass exhaust gas used in engine equipped with supercharger
JPS55112895A (en) Refrigerating apparatus
JPS5718497A (en) Eddy flow fan
JPS5652595A (en) Multivane compressor
JPS56121889A (en) Oil-cooled compressor
JPS5519908A (en) Refrigerating plant
JPS57165693A (en) Enclosed type compressor
JPS5791394A (en) Rotary refrigerant compressor
JPS64386A (en) Scroll compressor
JPS5448355A (en) Refrigerating cycle
JPS56135774A (en) Refrigerating apparatus
JPS53137408A (en) Starting load reduction device for multistage compressor
JPS5786598A (en) Refrigerating device
JPS56159582A (en) Freezer
JPS5799297A (en) Starting load reduction device for oil cooling type screw compressor
JPS5724477A (en) Compressor
JPS5638594A (en) Multistage capability controlling method