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JPS57165694A - Refrigerant compressor - Google Patents

Refrigerant compressor

Info

Publication number
JPS57165694A
JPS57165694A JP5201981A JP5201981A JPS57165694A JP S57165694 A JPS57165694 A JP S57165694A JP 5201981 A JP5201981 A JP 5201981A JP 5201981 A JP5201981 A JP 5201981A JP S57165694 A JPS57165694 A JP S57165694A
Authority
JP
Japan
Prior art keywords
refrigerant
switching valve
closed
valve
pass
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
JP5201981A
Other languages
Japanese (ja)
Inventor
Ryuichi Inaba
Tomoichi Goto
Yukimasa Ooka
Isamu Tateno
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.)
Denso Corp
Original Assignee
NipponDenso 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP5201981A priority Critical patent/JPS57165694A/en
Publication of JPS57165694A publication Critical patent/JPS57165694A/en
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE:To effectively vary the discharge capacity of a refrigerant compressor by driving a closing valve which open/closes a by-pass hole by a refrigerant at the pressure slightly higher than that of the by-pass hole. CONSTITUTION:When the cooling load is low a switching valve 31 is closed to prevent the flow of pressurized refrigerant from a pressure hole 37 into a pressure chamber 27, and a closig valve 33 and a switching valve 28 are opened to connect a cylinder chamber R and a refrigerant piping 26 with a by-pass passage 27 thereby preventing the start of compression of the cylinder chamber R until a roller 6 passes a by-pass hole 32 and the volume of the cylinder chamber R at the start of compression is reduced to a half. When sufficient discharge capacity of the compressor 21 is required due to increase of the cooling load and the like the switching valve 31 is opening to allow the flow of pressurized refrigerant into the pressure chamber 29 and the closing valve 29 is closed while the switching valve 28 is also closed to prevent the leak of pressurized refrigerant into the by-pass passage 27.
JP5201981A 1981-04-07 1981-04-07 Refrigerant compressor Pending JPS57165694A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5201981A JPS57165694A (en) 1981-04-07 1981-04-07 Refrigerant compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5201981A JPS57165694A (en) 1981-04-07 1981-04-07 Refrigerant compressor

Publications (1)

Publication Number Publication Date
JPS57165694A true JPS57165694A (en) 1982-10-12

Family

ID=12903094

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5201981A Pending JPS57165694A (en) 1981-04-07 1981-04-07 Refrigerant compressor

Country Status (1)

Country Link
JP (1) JPS57165694A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5954672A (en) * 1982-09-22 1984-03-29 株式会社村田製作所 Manufacture of high permittivity ceramic
CN101839239A (en) * 2009-03-20 2010-09-22 上海日立电器有限公司 Digital rotor type compressor
CN101839240A (en) * 2009-03-20 2010-09-22 上海日立电器有限公司 Rotor compressor with flexibly-changed blade backpressure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5954672A (en) * 1982-09-22 1984-03-29 株式会社村田製作所 Manufacture of high permittivity ceramic
CN101839239A (en) * 2009-03-20 2010-09-22 上海日立电器有限公司 Digital rotor type compressor
CN101839240A (en) * 2009-03-20 2010-09-22 上海日立电器有限公司 Rotor compressor with flexibly-changed blade backpressure

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