SE7903241L - PRESSURE MANUFACTURED HYDRAULIC CONTROL VALVE - Google Patents

PRESSURE MANUFACTURED HYDRAULIC CONTROL VALVE

Info

Publication number
SE7903241L
SE7903241L SE7903241A SE7903241A SE7903241L SE 7903241 L SE7903241 L SE 7903241L SE 7903241 A SE7903241 A SE 7903241A SE 7903241 A SE7903241 A SE 7903241A SE 7903241 L SE7903241 L SE 7903241L
Authority
SE
Sweden
Prior art keywords
pressure
compressor
fluid
bellows
control valve
Prior art date
Application number
SE7903241A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
R E Widdowson
Original Assignee
Gen 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 Gen Motors Corp filed Critical Gen Motors Corp
Publication of SE7903241L publication Critical patent/SE7903241L/en

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>
SE7903241A 1978-04-17 1979-04-11 PRESSURE MANUFACTURED HYDRAULIC CONTROL VALVE SE7903241L (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
SE7903241L true SE7903241L (en) 1979-10-18

Family

ID=25406748

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7903241A SE7903241L (en) 1978-04-17 1979-04-11 PRESSURE MANUFACTURED 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)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0637874B2 (en) * 1984-12-28 1994-05-18 株式会社豊田自動織機製作所 Variable capacity compressor
JPH02115577A (en) * 1988-10-24 1990-04-27 Sanden Corp Variable capacity type swingable compressor
JPH0343685A (en) * 1989-07-05 1991-02-25 Sanden Corp Capacity variable type oscillating compressor
JPH04342883A (en) * 1991-05-17 1992-11-30 Sanden Corp Variable delivery swash plate type compressor
JPH11336660A (en) 1998-05-27 1999-12-07 Toyota Autom Loom Works Ltd Variable displacement compressor and assembling method therefor
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
CN111734706A (en) * 2020-06-16 2020-10-02 浙江迦南科技股份有限公司 One-way buffer 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

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

Also Published As

Publication number Publication date
AR217917A1 (en) 1980-04-30
IT7948711A0 (en) 1979-04-12
AU517986B2 (en) 1981-09-10
GB2019043A (en) 1979-10-24
BR7902279A (en) 1979-12-11
FR2423809B1 (en) 1985-11-29
JPS54161116A (en) 1979-12-20
AU4551379A (en) 1979-10-25
CA1123402A (en) 1982-05-11
FR2423809A1 (en) 1979-11-16
DE2912615A1 (en) 1979-10-25
GB2019043B (en) 1982-06-03
IT1163982B (en) 1987-04-08

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