GB937645A - Hydraulic jack with follow-up - Google Patents

Hydraulic jack with follow-up

Info

Publication number
GB937645A
GB937645A GB1605262A GB1605262A GB937645A GB 937645 A GB937645 A GB 937645A GB 1605262 A GB1605262 A GB 1605262A GB 1605262 A GB1605262 A GB 1605262A GB 937645 A GB937645 A GB 937645A
Authority
GB
United Kingdom
Prior art keywords
chamber
valve
cylinder
cavity
chambers
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.)
Expired
Application number
GB1605262A
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.)
RECH ETUDES PROD
Recherches Etudes Production REP SARL
Original Assignee
RECH ETUDES PROD
Recherches Etudes Production REP SARL
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 RECH ETUDES PROD, Recherches Etudes Production REP SARL filed Critical RECH ETUDES PROD
Publication of GB937645A publication Critical patent/GB937645A/en
Expired 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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • F15B9/10—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor in which the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same passage

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Servomotors (AREA)
  • Braking Systems And Boosters (AREA)
  • Hydraulic Motors (AREA)

Abstract

937,645. Fluid-pressure servomotor control systems. RECHERCHES ETUDES PRODUCTION. April 26, 1962 [April 27, 1961], No. 16052/62. Class 135. An hydraulic servo-mechanism having a manual input element 4, a fixed piston 2, and a movable, output cylinder 1, has a control valve T directly coupled to the element 4 and formed with plane surfaces for co-operation with spring-loaded seating members G 1 , G 2 which are also urged against the valve by the hydraulic supply pressure admitted to a chamber 15 and through passages in the seating members and a passage 10 in the valve to a chamber 16. In addition, the pressures in the cylinder chambers 20, 26 are effective in chambers 32, 33 to provide a further force pressing the members G 1 , G 2 against the valve, and such pressures also act in annular chambers 31, 30 to provide " feel " for the operator. Deflection of the valve, which is centred by a spring 5, causes the transmission of pressure from the inlet 15 to the cylinder chamber 26 by way of a cavity 18 and passages 9, 33, 25 or to the chamber 20 by way of a cavity 17 and passage 19, depending upon the direction of deflection, and exhaust from either chamber 20, 26 takes place by communication of either cavity 17, 18 with a chamber 29 leading to an outlet 28. Movement of the seating members G 1 , G 2 with the cylinder 1 provides " follow-up " action.
GB1605262A 1961-04-27 1962-04-26 Hydraulic jack with follow-up Expired GB937645A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR860136A FR1295534A (en) 1961-04-27 1961-04-27 Hydraulic servo control

Publications (1)

Publication Number Publication Date
GB937645A true GB937645A (en) 1963-09-25

Family

ID=8754017

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1605262A Expired GB937645A (en) 1961-04-27 1962-04-26 Hydraulic jack with follow-up

Country Status (3)

Country Link
DE (1) DE1208963B (en)
FR (1) FR1295534A (en)
GB (1) GB937645A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1433397A (en) * 1965-01-19 1966-04-01 Rech Etudes Prod Hydraulic servo control

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US990304A (en) * 1910-06-30 1911-04-25 Le Grand Skinner Engine-valve.
US2030458A (en) * 1931-04-06 1936-02-11 Hughes Tool Co Resilient seat for valves
US2560841A (en) * 1946-01-24 1951-07-17 Fairey Aviat Co Ltd Hydraulic valve
DE975163C (en) * 1950-05-26 1961-09-07 Saunders Valve Co Ltd Gate valve with plane-parallel gate plate and axially movable sealing ring
GB727804A (en) * 1952-03-15 1955-04-06 Electraulic Presses Ltd Improvements in and relating to hydraulic systems and control valves therefor
US2858851A (en) * 1954-09-16 1958-11-04 James W F Holl Push-pull valve
US2919681A (en) * 1955-06-13 1960-01-05 Bendix Aviat Corp Reaction limit control valve
FR1137106A (en) * 1955-11-28 1957-05-23 Rech S Etudes Hydraulic distributor, in particular with electromagnetic control
BE556888A (en) * 1957-03-08
FR1249362A (en) * 1959-11-12 1960-12-30 Renault Double-acting pneumatic actuators improvements

Also Published As

Publication number Publication date
FR1295534A (en) 1962-06-08
DE1208963B (en) 1966-01-13

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