GB902006A - Hydraulic servo motor control systems - Google Patents

Hydraulic servo motor control systems

Info

Publication number
GB902006A
GB902006A GB1067159A GB1067159A GB902006A GB 902006 A GB902006 A GB 902006A GB 1067159 A GB1067159 A GB 1067159A GB 1067159 A GB1067159 A GB 1067159A GB 902006 A GB902006 A GB 902006A
Authority
GB
United Kingdom
Prior art keywords
pressure
valve
valve member
march
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.)
Expired
Application number
GB1067159A
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
Priority claimed from FR789654A external-priority patent/FR75362E/en
Application filed by RECH ETUDES PROD, Recherches Etudes Production REP SARL filed Critical RECH ETUDES PROD
Publication of GB902006A publication Critical patent/GB902006A/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2278—Pressure modulating relays or followers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2278—Pressure modulating relays or followers
    • Y10T137/2409—With counter-balancing pressure feedback to the modulating device
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86582—Pilot-actuated
    • Y10T137/8659—Variable orifice-type modulator
    • Y10T137/86598—Opposed orifices; interposed modulator

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Servomotors (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Control Of Fluid Pressure (AREA)
  • Coating Apparatus (AREA)

Abstract

902,006. Fluid-pressure servomotor-control systems. RECHERCHES ETUDES PRODUCTION. March 26, 1959 [March 26, 1958; March 18, 1959], No. 10671/59. Class 135. A two-stage hydraulic relay valve comprises a first stage or pilot valve member O, Figs. 2 and 3, and second stage spool type valve member T. The pilot valve member O is electromagnetically actuated and is resiliently supported by two spring arms 11, 12 and has an extension 4 located by two adjustable springs 7 and 8 in the air gap of a magnetic circuit 1, 2, 2a, 3, the coils 2, 2a of which receive the input signal. The member O co-operates with supply and exhaust nozzles Gb, Gp to determine the pressure in a chamber defined by a diaphragm 9 and this pressure acts on the surface Q of the four-way spool valve T having working ports 22, 23. The other end surface of the spool valve is subject to the inlet pressure. The spool valve is centrally biased by two springs 17, 18 and the pilot valve member O is biased by two opposing springs Rf, Rm, the latter of which forms a feedback connection between the spool valve and the member O. In another example, the pressure chamber of the nozzles is formed by a cylindrical member which carries the valve member O.
GB1067159A 1958-03-26 1959-03-26 Hydraulic servo motor control systems Expired GB902006A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR3025867X 1958-03-26
FR789654A FR75362E (en) 1959-03-18 1959-03-18 High performance, ultra low leakage hydraulic servo motor distributor
FR761598 1959-03-18

Publications (1)

Publication Number Publication Date
GB902006A true GB902006A (en) 1962-07-25

Family

ID=32397583

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1067159A Expired GB902006A (en) 1958-03-26 1959-03-26 Hydraulic servo motor control systems

Country Status (5)

Country Link
US (1) US3025867A (en)
CH (1) CH352572A (en)
DE (1) DE1161733B (en)
FR (1) FR1194539A (en)
GB (1) GB902006A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2212498B1 (en) * 1972-12-29 1976-01-30 Messier Hispano Fr
US7726340B2 (en) * 2006-11-09 2010-06-01 Honeywell International Inc. Flexible, hermetic pivot seal for torque motor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2146176A (en) * 1939-02-07 Regulating device
DE314523C (en) *
US2742919A (en) * 1951-06-30 1956-04-24 Gen Controls Co Electromagnetically operated balanced pilot valve
US2767689A (en) * 1953-05-22 1956-10-23 Cornell Aeronautical Labor Inc Electrohydraulic servo valve
US2858849A (en) * 1955-02-28 1958-11-04 Gen Controls Co Multi-positional control valve
US2790427A (en) * 1955-09-23 1957-04-30 Ex Cell O Corp Flow control servo valve
FR1137106A (en) * 1955-11-28 1957-05-23 Rech S Etudes Hydraulic distributor, in particular with electromagnetic control
DE1024767B (en) * 1956-02-10 1958-02-20 Forkardt Paul Kg Electromagnetically controlled four-way valve
US2896588A (en) * 1956-04-04 1959-07-28 Sanders Associates Inc Electro-hydraulic servo valve

Also Published As

Publication number Publication date
FR1194539A (en) 1959-11-10
US3025867A (en) 1962-03-20
DE1161733B (en) 1964-01-23
CH352572A (en) 1961-02-28

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