EP0132923A3 - Valve for automatically directing a flow of fluid - Google Patents

Valve for automatically directing a flow of fluid Download PDF

Info

Publication number
EP0132923A3
EP0132923A3 EP84303536A EP84303536A EP0132923A3 EP 0132923 A3 EP0132923 A3 EP 0132923A3 EP 84303536 A EP84303536 A EP 84303536A EP 84303536 A EP84303536 A EP 84303536A EP 0132923 A3 EP0132923 A3 EP 0132923A3
Authority
EP
European Patent Office
Prior art keywords
valve
fluid
flow
spool
valve spool
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.)
Withdrawn
Application number
EP84303536A
Other languages
German (de)
French (fr)
Other versions
EP0132923A2 (en
Inventor
Stephan Kempe
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.)
JH Fenner and Co Ltd
Original Assignee
JH Fenner and 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 JH Fenner and Co Ltd filed Critical JH Fenner and Co Ltd
Publication of EP0132923A2 publication Critical patent/EP0132923A2/en
Publication of EP0132923A3 publication Critical patent/EP0132923A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
    • F01L25/02—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means
    • F01L25/04—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means by working-fluid of machine or engine, e.g. free-piston machine
    • F01L25/06—Arrangements with main and auxiliary valves, at least one of them being fluid-driven

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Fluid-Driven Valves (AREA)
  • Multiple-Way Valves (AREA)

Abstract

A valve for automatically directing the flow of fluid from a source of pressure to each side in turn of a double acting hydraulic actuator causing it to reciprocate. The valve assem­ bly comprising a valve spool (12) which is acted on by a return spring (13) to urge the valve spool into a starting position, in which position fluid flows to one side of the actuator. Spring loaded valve means (17,25) controls the flow of fluid, when a predetermined pressure is exceeded, to a pilot spool (14) which acts on the valve spool to change over its position. The valve spool (12) is held in the change over position by a back pressure which is generated during the return of the actuator by the flow of fluid through a throttle (D) formed between the valve spool and the pilot spool.
EP84303536A 1983-05-31 1984-05-25 Valve for automatically directing a flow of fluid Withdrawn EP0132923A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8314942 1983-05-31
GB838314942A GB8314942D0 (en) 1983-05-31 1983-05-31 Valves

Publications (2)

Publication Number Publication Date
EP0132923A2 EP0132923A2 (en) 1985-02-13
EP0132923A3 true EP0132923A3 (en) 1987-03-25

Family

ID=10543601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84303536A Withdrawn EP0132923A3 (en) 1983-05-31 1984-05-25 Valve for automatically directing a flow of fluid

Country Status (3)

Country Link
EP (1) EP0132923A3 (en)
JP (1) JPS608504A (en)
GB (1) GB8314942D0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19917673A1 (en) 1999-04-19 2000-10-26 Zahnradfabrik Friedrichshafen Switching device for 2-stage planetary drive has electromagnetic setting element controlling sliding cuff for coupling hollow wheel of planetary drive with drive housing or sun wheel
JP5457769B2 (en) * 2009-09-10 2014-04-02 大和基工株式会社 1-channel hydraulic cylinder drive expansion head
JP4749496B1 (en) * 2010-05-26 2011-08-17 ハウスプラン株式会社 Seesaw type solar power generator
US8387662B2 (en) * 2010-12-02 2013-03-05 Halliburton Energy Services, Inc. Device for directing the flow of a fluid using a pressure switch

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1409305A (en) * 1971-10-21 1975-10-08 Eaton Corp Flow control valve
GB1541490A (en) * 1975-03-25 1979-03-07 Affiliated Hospital Prod Hydraulic control valve arrangement for operating tables
DE2842808A1 (en) * 1977-10-11 1979-04-12 Hills Mccanna Co VALVE ACTUATOR
GB2032061A (en) * 1978-08-29 1980-04-30 Inter Hydraulik Gmbh Filling and discharge valves for the control of hydraulically operated press and bending machines
GB2092717A (en) * 1981-02-07 1982-08-18 Gewerk Eisenhuette Westfalia Hydraulic control valve assembly
US4349041A (en) * 1979-08-20 1982-09-14 Nl Industries, Inc. Control valve system for blowout preventers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1409305A (en) * 1971-10-21 1975-10-08 Eaton Corp Flow control valve
GB1541490A (en) * 1975-03-25 1979-03-07 Affiliated Hospital Prod Hydraulic control valve arrangement for operating tables
DE2842808A1 (en) * 1977-10-11 1979-04-12 Hills Mccanna Co VALVE ACTUATOR
GB2032061A (en) * 1978-08-29 1980-04-30 Inter Hydraulik Gmbh Filling and discharge valves for the control of hydraulically operated press and bending machines
US4349041A (en) * 1979-08-20 1982-09-14 Nl Industries, Inc. Control valve system for blowout preventers
GB2092717A (en) * 1981-02-07 1982-08-18 Gewerk Eisenhuette Westfalia Hydraulic control valve assembly

Also Published As

Publication number Publication date
GB8314942D0 (en) 1983-07-06
JPS608504A (en) 1985-01-17
EP0132923A2 (en) 1985-02-13

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Legal Events

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Withdrawal date: 19871020

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KEMPE, STEPHAN