JPS57102584A - Variable capacity compressor - Google Patents

Variable capacity compressor

Info

Publication number
JPS57102584A
JPS57102584A JP55176256A JP17625680A JPS57102584A JP S57102584 A JPS57102584 A JP S57102584A JP 55176256 A JP55176256 A JP 55176256A JP 17625680 A JP17625680 A JP 17625680A JP S57102584 A JPS57102584 A JP S57102584A
Authority
JP
Japan
Prior art keywords
pressure
spool
discharging valve
compressor
switched
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
JP55176256A
Other languages
Japanese (ja)
Other versions
JPS6310316B2 (en
Inventor
Kimio Kato
Hiroya Kono
Hisao Kobayashi
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
Priority to JP55176256A priority Critical patent/JPS57102584A/en
Priority to US06/313,681 priority patent/US4403921A/en
Priority to DE3142230A priority patent/DE3142230C2/en
Publication of JPS57102584A publication Critical patent/JPS57102584A/en
Publication of JPS6310316B2 publication Critical patent/JPS6310316B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Positive-Displacement Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

PURPOSE: To enable a compressor to surely change its compression ability, by making a discharging valve to be movable to its opening position by use of the difference of the gas pressure acting on the back from that acting on the front surface of a spool when an operation pressure applied to the spool is switched to an intake pressure.
CONSTITUTION: When a cooling load is reduced and intake pressure is lowered, a changeover valve 54 is switched to an intake side by turning on a pressure switch so as to affect the intake pressure on the back surface of a spool, so that a discharging valve 41 is shifted in floating to its opening position. Namely, the pressure P1 acting on the spool 44 is actuated to the direction in which the discharging valve 41 is pulled off from a valve plate 4. Here, if the pressures are set to be P1>P2, the discharging valve 41 can be floated even if a spring 50 is not employed. Consequently, the rear side is stopped in the same way as in starting up phase, and the compressor is switched in an operation of 50%. A releasing action of the discharging valve 41, namely, the changeover of the compressor ablitity can be thus performed, certainly.
COPYRIGHT: (C)1982,JPO&Japio
JP55176256A 1980-10-27 1980-12-13 Variable capacity compressor Granted JPS57102584A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP55176256A JPS57102584A (en) 1980-12-13 1980-12-13 Variable capacity compressor
US06/313,681 US4403921A (en) 1980-10-27 1981-10-21 Multi-cylinder variable delivery compressor
DE3142230A DE3142230C2 (en) 1980-10-27 1981-10-24 Device for adjusting the performance of a multi-cylinder refrigerant compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55176256A JPS57102584A (en) 1980-12-13 1980-12-13 Variable capacity compressor

Publications (2)

Publication Number Publication Date
JPS57102584A true JPS57102584A (en) 1982-06-25
JPS6310316B2 JPS6310316B2 (en) 1988-03-05

Family

ID=16010378

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55176256A Granted JPS57102584A (en) 1980-10-27 1980-12-13 Variable capacity compressor

Country Status (1)

Country Link
JP (1) JPS57102584A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773877A (en) * 1980-10-27 1982-05-08 Toyoda Autom Loom Works Ltd Variable capacity compressor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773877A (en) * 1980-10-27 1982-05-08 Toyoda Autom Loom Works Ltd Variable capacity compressor

Also Published As

Publication number Publication date
JPS6310316B2 (en) 1988-03-05

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