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GB2019043A - Pressure Operated Hydraulic Control Valve - Google Patents

Pressure Operated Hydraulic Control Valve

Info

Publication number
GB2019043A
GB2019043A GB7911922A GB7911922A GB2019043A GB 2019043 A GB2019043 A GB 2019043A GB 7911922 A GB7911922 A GB 7911922A GB 7911922 A GB7911922 A GB 7911922A GB 2019043 A GB2019043 A GB 2019043A
Authority
GB
United Kingdom
Prior art keywords
pressure
compressor
fluid
bellows
control valve
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
GB7911922A
Other versions
GB2019043B (en
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.)
Motors Liquidation Co
Original Assignee
General Motors Corp
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 General Motors Corp filed Critical General Motors Corp
Publication of GB2019043A publication Critical patent/GB2019043A/en
Application granted granted Critical
Publication of GB2019043B publication Critical patent/GB2019043B/en
Expired 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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/26—Control
    • F04B1/28—Control of machines or pumps with stationary cylinders
    • F04B1/29—Control of machines or pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B1/295—Control of machines or pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Safety Valves (AREA)
  • Fluid-Driven Valves (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

A pressure operated control valve operative to regulate the flow of fluid to an hydraulic modulating cylinder having a fixed hydraulic bleed which cylinder operates a mechanism for varying the displacement of a compressor of an automotive air conditioning system to maintain a predetermined control or system pressure. The system pressure continually surrounds a sealed bellows 330 seated in the closed end of a tubular bellows cover 310. High pressure fluid is continually supplied to the control valve which has a ball 385 and seat totally to restrict fluid flow to the modulating cylinder when the system pressure exceeds the setting pressure of the valve. When the system pressure drops below the setting pressure, the bellows extends against an axial pin 348 which forces the ball from its seat, thus allowing high pressure fluid to flow to the compressor modulating cylinder operating the compressor mechanism and reducing the stroke of the compressor pistons. When the system pressure returns to the setting pressure, the bellows retracts moving the ball toward its seat thereby reducing the hydraulic fluid flow to the modulating cylinder. <IMAGE>
GB7911922A 1978-04-17 1979-04-05 Pressure operated hydraulic control valve Expired GB2019043B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US89674178A 1978-04-17 1978-04-17

Publications (2)

Publication Number Publication Date
GB2019043A true GB2019043A (en) 1979-10-24
GB2019043B GB2019043B (en) 1982-06-03

Family

ID=25406748

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7911922A Expired GB2019043B (en) 1978-04-17 1979-04-05 Pressure operated hydraulic control valve

Country Status (10)

Country Link
JP (1) JPS54161116A (en)
AR (1) AR217917A1 (en)
AU (1) AU517986B2 (en)
BR (1) BR7902279A (en)
CA (1) CA1123402A (en)
DE (1) DE2912615A1 (en)
FR (1) FR2423809B1 (en)
GB (1) GB2019043B (en)
IT (1) IT1163982B (en)
SE (1) SE7903241L (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4687419A (en) * 1984-12-28 1987-08-18 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Variable angle wobble plate type compressor which maintains the crankcase pressure at a predetermined value
US5080561A (en) * 1989-07-05 1992-01-14 Sanden Corporation Slant plate type compressor with variable displacement mechanism
US5092741A (en) * 1988-10-24 1992-03-03 Sanden Corporation Slant plate type compressor with variable displacement mechanism
US5277552A (en) * 1991-05-17 1994-01-11 Sanden Corporation Slant plate type compressor with variable displacement mechanism
EP0961031A3 (en) * 1998-05-27 2000-03-01 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Regulating valve for variable displacement swash plate compressor and its assembly method
CN111608745A (en) * 2020-05-25 2020-09-01 中国船舶重工集团公司第七0三研究所 A pressure drop regulator applied to a gas turbine
CN111734706A (en) * 2020-06-16 2020-10-02 浙江迦南科技股份有限公司 One-way buffer valve
CN114382897A (en) * 2022-01-22 2022-04-22 江苏明江阀业有限公司 High-risk medium anti-blocking inverted sealing corrugated pipe regulating valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108252973B (en) * 2018-01-20 2020-07-14 上海欧特莱阀门机械有限公司 Plug-in type direct-acting proportional pressure reducing valve

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH491375A (en) * 1968-05-27 1970-05-31 Siemens Ag Method for measuring the thermal conductivity of gases and liquids
US4037993A (en) * 1976-04-23 1977-07-26 Borg-Warner Corporation Control system for variable displacement compressor
US4061443A (en) * 1976-12-02 1977-12-06 General Motors Corporation Variable stroke compressor

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4687419A (en) * 1984-12-28 1987-08-18 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Variable angle wobble plate type compressor which maintains the crankcase pressure at a predetermined value
US5092741A (en) * 1988-10-24 1992-03-03 Sanden Corporation Slant plate type compressor with variable displacement mechanism
US5080561A (en) * 1989-07-05 1992-01-14 Sanden Corporation Slant plate type compressor with variable displacement mechanism
US5277552A (en) * 1991-05-17 1994-01-11 Sanden Corporation Slant plate type compressor with variable displacement mechanism
EP0961031A3 (en) * 1998-05-27 2000-03-01 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Regulating valve for variable displacement swash plate compressor and its assembly method
US6217292B1 (en) 1998-05-27 2001-04-17 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Variable displacement type refrigerant compressor
CN111608745A (en) * 2020-05-25 2020-09-01 中国船舶重工集团公司第七0三研究所 A pressure drop regulator applied to a gas turbine
CN111734706A (en) * 2020-06-16 2020-10-02 浙江迦南科技股份有限公司 One-way buffer valve
CN114382897A (en) * 2022-01-22 2022-04-22 江苏明江阀业有限公司 High-risk medium anti-blocking inverted sealing corrugated pipe regulating valve
CN114382897B (en) * 2022-01-22 2023-10-13 江苏明江阀业有限公司 High-risk medium anti-blocking reverse sealing corrugated pipe regulating valve

Also Published As

Publication number Publication date
GB2019043B (en) 1982-06-03
DE2912615A1 (en) 1979-10-25
BR7902279A (en) 1979-12-11
FR2423809B1 (en) 1985-11-29
JPS54161116A (en) 1979-12-20
CA1123402A (en) 1982-05-11
IT7948711A0 (en) 1979-04-12
AU4551379A (en) 1979-10-25
IT1163982B (en) 1987-04-08
AR217917A1 (en) 1980-04-30
SE7903241L (en) 1979-10-18
FR2423809A1 (en) 1979-11-16
AU517986B2 (en) 1981-09-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee