JPS57159979A - Compressor - Google Patents

Compressor

Info

Publication number
JPS57159979A
JPS57159979A JP56045600A JP4560081A JPS57159979A JP S57159979 A JPS57159979 A JP S57159979A JP 56045600 A JP56045600 A JP 56045600A JP 4560081 A JP4560081 A JP 4560081A JP S57159979 A JPS57159979 A JP S57159979A
Authority
JP
Japan
Prior art keywords
piston
chamber
conducting
cylinder chamber
pressure side
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
JP56045600A
Other languages
Japanese (ja)
Inventor
Takahisa Hirano
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP56045600A priority Critical patent/JPS57159979A/en
Priority to AU75132/81A priority patent/AU550468B2/en
Priority to SE8105394A priority patent/SE456264B/en
Priority to FR8117807A priority patent/FR2490749B1/en
Priority to GB8128498A priority patent/GB2083868B/en
Priority to DE19813137918 priority patent/DE3137918A1/en
Publication of JPS57159979A publication Critical patent/JPS57159979A/en
Priority to US06/635,463 priority patent/US4544333A/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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/10—Control 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
    • F04C28/16—Control 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

Abstract

PURPOSE:To control the delivery of cylinder chambers after second one, by providing an unloader piston where the in-tube pressure of first cylinder chamber and the low pressure of the compressor will function. CONSTITUTION:The unloader piston chamber 103 is constructed such that the in-tube pressure of the first cylinder chamber 50-1 will be applied at the in-tube pressure side of the unloader piston 105 and the suction pressure of the compressor is applied at the low pressure side of said piston 105 while simultaneously the spring force is applied by a spring 106, while a bypass hole 108 conducting with the second cylinder chamber 50-2 and a relief hole 109 conducting with a suction chamber 53 are provided at the portion not conducting with the in-tube pressure side and the suction pressure side of the piston chamber 103. When the low pressure and the spring force are overcome by the load due to the in-tube pressure, the piston 105 will move to choke the bypass hole 108 conducting to the second cylinder chamber 50-2 thus to perform the conventional full-load operation.
JP56045600A 1980-09-19 1981-03-30 Compressor Pending JPS57159979A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP56045600A JPS57159979A (en) 1981-03-30 1981-03-30 Compressor
AU75132/81A AU550468B2 (en) 1980-09-19 1981-09-10 Compressor capability control
SE8105394A SE456264B (en) 1980-09-19 1981-09-10 CAPACITY CONTROL DEVICE FOR SCREW COMPRESSORS
FR8117807A FR2490749B1 (en) 1980-09-19 1981-09-21 CAPACITY CONTROL DEVICE FOR A COMPRESSOR
GB8128498A GB2083868B (en) 1980-09-19 1981-09-21 Rotary positive-displacement compressors
DE19813137918 DE3137918A1 (en) 1980-09-19 1981-09-21 PERFORMANCE CONTROL FOR A COMPRESSOR
US06/635,463 US4544333A (en) 1980-09-19 1984-07-25 Capability control apparatus for a compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56045600A JPS57159979A (en) 1981-03-30 1981-03-30 Compressor

Publications (1)

Publication Number Publication Date
JPS57159979A true JPS57159979A (en) 1982-10-02

Family

ID=12723839

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56045600A Pending JPS57159979A (en) 1980-09-19 1981-03-30 Compressor

Country Status (1)

Country Link
JP (1) JPS57159979A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58222994A (en) * 1982-06-22 1983-12-24 Toyoda Autom Loom Works Ltd Variable capacity compressor
US4566863A (en) * 1983-09-16 1986-01-28 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Rotary compressor operable under a partial delivery capacity
JPS6137493U (en) * 1984-08-08 1986-03-08 株式会社豊田自動織機製作所 Shock mitigation mechanism at startup in vane type compressor
WO2014189093A1 (en) * 2013-05-24 2014-11-27 三菱電機株式会社 Heat pump device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58222994A (en) * 1982-06-22 1983-12-24 Toyoda Autom Loom Works Ltd Variable capacity compressor
US4566863A (en) * 1983-09-16 1986-01-28 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Rotary compressor operable under a partial delivery capacity
JPS6137493U (en) * 1984-08-08 1986-03-08 株式会社豊田自動織機製作所 Shock mitigation mechanism at startup in vane type compressor
WO2014189093A1 (en) * 2013-05-24 2014-11-27 三菱電機株式会社 Heat pump device
CN105283714A (en) * 2013-05-24 2016-01-27 三菱电机株式会社 Heat pump device
JP6000452B2 (en) * 2013-05-24 2016-09-28 三菱電機株式会社 Heat pump equipment
US10473367B2 (en) 2013-05-24 2019-11-12 Mitsubishi Electric Corporation Heat pump apparatus

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