EP0086632A3 - Control valve - Google Patents

Control valve Download PDF

Info

Publication number
EP0086632A3
EP0086632A3 EP83300678A EP83300678A EP0086632A3 EP 0086632 A3 EP0086632 A3 EP 0086632A3 EP 83300678 A EP83300678 A EP 83300678A EP 83300678 A EP83300678 A EP 83300678A EP 0086632 A3 EP0086632 A3 EP 0086632A3
Authority
EP
European Patent Office
Prior art keywords
valve
closure member
cylinder
piston
striker
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Withdrawn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
EP83300678A
Other languages
German (de)
French (fr)
Other versions
EP0086632A2 (en
Inventor
John Cusveller
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.)
Unisys Group Services Ltd
Original Assignee
Sperry 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 Sperry Ltd filed Critical Sperry Ltd
Publication of EP0086632A2 publication Critical patent/EP0086632A2/en
Publication of EP0086632A3 publication Critical patent/EP0086632A3/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Withdrawn legal-status Critical Current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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/202—Externally-operated valves mounted in or on the actuator
    • 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
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/24—Other details, e.g. assembly with regulating devices for restricting the stroke

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Damping Devices (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
  • Safety Valves (AREA)

Abstract

A control valve (1) for an hydraulic piston-cylinder assem­ bly (28) having one port (10) connected to the cylinder (27) and another port (11) connectable into a circuit which controls relative movement between the cylinder (27) and piston (30). The two ports (10, 11) communicate through the body (2) of the valve (1) and a closure member (4) is movable between positions at which it opens ans closes that communication. A striker (21) associated with the piston-cylinder assembly (28) and responsive to relative movement thereof in one direction, is engagable with an abutment (22) of the closure member (4) so as to move that member (4) towards the valve closed posi­ tion. As the closure member (4) approaches the closed posi­ tion, a throttling portion (19) of that member (4) becomes op­ erative to restrict fluid flow between the valve ports (10, 11) and thereby creates a pressure differential which acts across the closure member (4) to move that member (4) free of the influence of the striker (21) and into tne closed position. When the throttling portion (19) is inoperative, fluid pressure within the valve (1) tends to urge the closure member (4) towards the open position.
EP83300678A 1982-02-11 1983-02-10 Control valve Withdrawn EP0086632A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2669/82 1982-02-11
AU266982 1982-02-11

Publications (2)

Publication Number Publication Date
EP0086632A2 EP0086632A2 (en) 1983-08-24
EP0086632A3 true EP0086632A3 (en) 1984-08-22

Family

ID=3693171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83300678A Withdrawn EP0086632A3 (en) 1982-02-11 1983-02-10 Control valve

Country Status (3)

Country Link
EP (1) EP0086632A3 (en)
JP (1) JPS58191389A (en)
AU (1) AU1164083A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103994116B (en) * 2014-04-17 2016-09-07 新魁液压技术有限公司 Built-in stop valve total travel adjustable oil cylinder
CN113530920B (en) * 2021-06-17 2024-05-28 北京中金泰达电液科技有限公司 Hydraulic cylinder stroke limiting structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1252062A (en) * 1959-11-20 1961-01-27 Hydraulic circuit with end stop by dynamic leakage balance
FR2132013A1 (en) * 1971-03-29 1972-11-17 Caterpillar Tractor Co
US3972265A (en) * 1973-08-02 1976-08-03 Bruning Company Stroke control device
CA1044571A (en) * 1976-07-29 1978-12-19 Senegal, George Stroke limiting apparatus for hydraulic cylinders

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1252062A (en) * 1959-11-20 1961-01-27 Hydraulic circuit with end stop by dynamic leakage balance
FR2132013A1 (en) * 1971-03-29 1972-11-17 Caterpillar Tractor Co
US3972265A (en) * 1973-08-02 1976-08-03 Bruning Company Stroke control device
CA1044571A (en) * 1976-07-29 1978-12-19 Senegal, George Stroke limiting apparatus for hydraulic cylinders

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HYDRAULICS AND PNEUMATICS, vol. 32, May 1979, pages 72-75, Cleveland, USA *

Also Published As

Publication number Publication date
EP0086632A2 (en) 1983-08-24
JPS58191389A (en) 1983-11-08
AU1164083A (en) 1983-08-18

Similar Documents

Publication Publication Date Title
CA2295592A1 (en) Bypass valve closing means
EP0394612A3 (en) Pressure activated check valve
ES462469A1 (en) Control device for a hydraulic motor
ES512689A0 (en) "HYDRAULIC CONTROL VALVE INSTALLATION".
SE8202565L (en) CONTROL VALVE
GB1351958A (en) Pneumatic actuators
CA2282899A1 (en) Adjustable orifice valve
CA2053111A1 (en) Internal valve for pressure fluid containment vessels
AU565152B2 (en) Load control system
EP0427865A4 (en) Hydraulic driving device of construction equipment
EP0110620A1 (en) Fluid flow control valve assembly
CA2366117A1 (en) Downhole bypass valve
GB1154204A (en) Automatic Flow Diverter Valve
US3608859A (en) Controllable check valve
GB1457492A (en) Hydraulic control vavle
DE3270468D1 (en) Pressure relief valve
EP0086632A3 (en) Control valve
EP0416130A4 (en) Hydraulic valve capable of pressure compensation
DE3169592D1 (en) Electro-pneumatic transducer
JPH03501996A (en) Controlled joint-type regulator to adjust the speed of a pneumatic jack
US6047944A (en) Poppet with a flow increasing element for limiting movement thereof in a poppet valve
US3688644A (en) Fluid operated actuator for movable members
US3963045A (en) Cushion control accessory for pneumatic or hydraulic cylinders
GB2080925A (en) Variable speed fluid flow control valve
DK78291D0 (en) POSITION INDICATOR FOR A HYDRAULIC ADJUSTMENT ENGINE

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): BE DE FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): BE DE FR GB IT SE

RHK1 Main classification (correction)

Ipc: F15B 15/24

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: 19850423

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CUSVELLER, JOHN