EP0116739A3 - Hydraulic valve - Google Patents

Hydraulic valve Download PDF

Info

Publication number
EP0116739A3
EP0116739A3 EP83303677A EP83303677A EP0116739A3 EP 0116739 A3 EP0116739 A3 EP 0116739A3 EP 83303677 A EP83303677 A EP 83303677A EP 83303677 A EP83303677 A EP 83303677A EP 0116739 A3 EP0116739 A3 EP 0116739A3
Authority
EP
European Patent Office
Prior art keywords
valve
hydraulic valve
return
pilot
combining
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Withdrawn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
EP83303677A
Other languages
German (de)
French (fr)
Other versions
EP0116739A2 (en
Inventor
Ronald Bernard Walters
Clifford James Balmer
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.)
Vickers Inc
Original Assignee
Sperry Corp
Vickers Inc
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 Sperry Corp, Vickers Inc filed Critical Sperry Corp
Publication of EP0116739A2 publication Critical patent/EP0116739A2/en
Publication of EP0116739A3 publication Critical patent/EP0116739A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Servomotors (AREA)

Abstract

In a pilot-operated hydraulic valve, a non-return valve (7) in the valve inlet (25) is arranged to operate simultaneously as a variable-orifice flow sensor. By combining the non-­ return and flow-sensing functions in the non-return valve (7) a significant saving in space and weight is achieved.
EP83303677A 1982-07-02 1983-06-24 Hydraulic valve Withdrawn EP0116739A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8219279 1982-07-02
GB8219279 1982-07-02

Publications (2)

Publication Number Publication Date
EP0116739A2 EP0116739A2 (en) 1984-08-29
EP0116739A3 true EP0116739A3 (en) 1985-05-02

Family

ID=10531456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83303677A Withdrawn EP0116739A3 (en) 1982-07-02 1983-06-24 Hydraulic valve

Country Status (3)

Country Link
EP (1) EP0116739A3 (en)
JP (1) JPS5923106A (en)
AU (1) AU1582983A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5056561A (en) * 1990-02-08 1991-10-15 Byers James O Remote controlled, individually pressure compensated valve
US5234017A (en) * 1990-11-30 1993-08-10 Aeroquip Corporation Restrictor valve for a metered liquid dispensing system
SE9302347L (en) * 1993-07-07 1994-10-03 Voac Hydraulics Boraas Ab Controls for a hydraulic motor
US6016838A (en) * 1997-03-07 2000-01-25 Mead Fluid Dynamics, Inc. Valve construction
CN117927522B (en) * 2024-03-22 2024-07-05 山西斯普瑞机械制造股份有限公司 Differential combination valve of mold closing cylinder of foam molding machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1174768A (en) * 1966-03-03 1969-12-17 Dowty Electrics Ltd Fluid Pressure Control Valve
EP0002446A1 (en) * 1977-12-09 1979-06-27 Mannesmann Rexroth GmbH Electrically controlled four way valve functioning independently from the load
US4315436A (en) * 1980-02-01 1982-02-16 Transamerica Delaval Inc. Flow-rate transducer with electrical output

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1174768A (en) * 1966-03-03 1969-12-17 Dowty Electrics Ltd Fluid Pressure Control Valve
EP0002446A1 (en) * 1977-12-09 1979-06-27 Mannesmann Rexroth GmbH Electrically controlled four way valve functioning independently from the load
US4315436A (en) * 1980-02-01 1982-02-16 Transamerica Delaval Inc. Flow-rate transducer with electrical output

Also Published As

Publication number Publication date
AU1582983A (en) 1984-01-05
EP0116739A2 (en) 1984-08-29
JPS5923106A (en) 1984-02-06

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): DE FR GB IT SE

17P Request for examination filed

Effective date: 19851016

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VICKERS, INCORPORATED

17Q First examination report despatched

Effective date: 19860822

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19870101

RIN1 Information on inventor provided before grant (corrected)

Inventor name: WALTERS, RONALD BERNARD

Inventor name: BALMER, CLIFFORD JAMES