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GB1389514A - Electrohydraulic servomechanisms - Google Patents

Electrohydraulic servomechanisms

Info

Publication number
GB1389514A
GB1389514A GB1742273A GB1742273A GB1389514A GB 1389514 A GB1389514 A GB 1389514A GB 1742273 A GB1742273 A GB 1742273A GB 1742273 A GB1742273 A GB 1742273A GB 1389514 A GB1389514 A GB 1389514A
Authority
GB
United Kingdom
Prior art keywords
vane
nozzles
apertures
april
recesses
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
GB1742273A
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.)
Societe dOptique Precision Electronique et Mecanique SOPELEM SA
Original Assignee
Societe dOptique Precision Electronique et Mecanique SOPELEM SA
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 Societe dOptique Precision Electronique et Mecanique SOPELEM SA filed Critical Societe dOptique Precision Electronique et Mecanique SOPELEM SA
Publication of GB1389514A publication Critical patent/GB1389514A/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
    • 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
    • F15B13/0438—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 the pilot valves being of the nozzle-flapper type

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)
  • Servomotors (AREA)

Abstract

1389514 Fluid-pressure servomotor systems; fluid regulation SOC D'OPTIQUE PRICISION ELECTRONIQUE ET MECANIQUE 11 April 1973 [11 April 1972] 17422/73 Headings G3H and G3P A servovalve comprises a vane 34 movable in a plane perpendicular to the axis of nozzles 29, 30 so as to control the liquid discharge through the latter, vane 34 being secured to one end of a shaft 35 passing through a resilient tube 36 and connected at its other end to the armature 37 of a torque motor. Vane 34 is provided with recesses 341, 342 such that deflection of vane 34 from the minimum flow neutral position causes flow through one or other of nozzles 29, 30 to progressively increase. Nozzles 29, 30 are fed with liquid from a common inlet 31 via restrictions 33, 32 and apertures 291, 301 respectively, the pressures in the nozzles being sensed via apertures 293, 303. In a modification, Figs. 1, 2 (not shown) neither the latter apertures nor the vane recesses are provided.
GB1742273A 1972-04-11 1973-04-11 Electrohydraulic servomechanisms Expired GB1389514A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7212601A FR2179522B1 (en) 1972-04-11 1972-04-11

Publications (1)

Publication Number Publication Date
GB1389514A true GB1389514A (en) 1975-04-03

Family

ID=9096639

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1742273A Expired GB1389514A (en) 1972-04-11 1973-04-11 Electrohydraulic servomechanisms

Country Status (4)

Country Link
DE (1) DE2313854A1 (en)
FR (1) FR2179522B1 (en)
GB (1) GB1389514A (en)
IT (1) IT984416B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057969A1 (en) * 1981-01-14 1982-08-18 Sundstrand Corporation Pilot valves
EP0198635A2 (en) * 1985-04-04 1986-10-22 Fairey Hydraulics Limited Fluid valves
WO2015015155A1 (en) * 2013-07-30 2015-02-05 Moog Controls Limited Improvements in hydraulic servovalves

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057969A1 (en) * 1981-01-14 1982-08-18 Sundstrand Corporation Pilot valves
EP0198635A2 (en) * 1985-04-04 1986-10-22 Fairey Hydraulics Limited Fluid valves
EP0198635A3 (en) * 1985-04-04 1987-01-14 Fairey Hydraulics Limited Fluid valves
WO2015015155A1 (en) * 2013-07-30 2015-02-05 Moog Controls Limited Improvements in hydraulic servovalves

Also Published As

Publication number Publication date
IT984416B (en) 1974-11-20
DE2313854A1 (en) 1973-10-18
FR2179522B1 (en) 1978-11-24
FR2179522A1 (en) 1973-11-23

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee