GB1489321A - Servovalves and servomotors incorporating such valves - Google Patents

Servovalves and servomotors incorporating such valves

Info

Publication number
GB1489321A
GB1489321A GB3170/75A GB317075A GB1489321A GB 1489321 A GB1489321 A GB 1489321A GB 3170/75 A GB3170/75 A GB 3170/75A GB 317075 A GB317075 A GB 317075A GB 1489321 A GB1489321 A GB 1489321A
Authority
GB
United Kingdom
Prior art keywords
servovalves
servomotors
incorporating
valves
servomotors incorporating
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
GB3170/75A
Other languages
English (en)
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1489321A publication Critical patent/GB1489321A/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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
    • F15B11/127—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action with step-by-step action
    • F15B11/128—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action with step-by-step action by means of actuators of the standard type with special circuit controlling means
    • 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
    • F15B13/0436—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 steerable jet 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
    • Y10T137/8593—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
    • 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
    • Y10T137/8667—Reciprocating valve
    • Y10T137/86694—Piston valve
    • Y10T137/86702—With internal flow passage
GB3170/75A 1974-01-29 1975-01-24 Servovalves and servomotors incorporating such valves Expired GB1489321A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US437667*A US3922955A (en) 1974-01-29 1974-01-29 Fail-fixed servovalve

Publications (1)

Publication Number Publication Date
GB1489321A true GB1489321A (en) 1977-10-19

Family

ID=23737390

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3170/75A Expired GB1489321A (en) 1974-01-29 1975-01-24 Servovalves and servomotors incorporating such valves

Country Status (7)

Country Link
US (1) US3922955A (fr)
JP (1) JPS604364B2 (fr)
BE (1) BE824920A (fr)
DE (1) DE2503067A1 (fr)
FR (1) FR2259263B1 (fr)
GB (1) GB1489321A (fr)
IT (1) IT1031166B (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103592A (en) * 1975-12-19 1978-08-01 General Electric Company Valve operator
US4220074A (en) * 1977-05-25 1980-09-02 Vapor Corporation Switching valve
US4137707A (en) * 1977-07-22 1979-02-06 General Electric Company Integrated control system for a gas turbine engine
US4227443A (en) * 1978-09-25 1980-10-14 General Electric Company Fail-fixed servovalve
US4276809A (en) * 1979-04-23 1981-07-07 General Electric Company Simplified fail-fixed servovalve
US4375780A (en) * 1980-01-28 1983-03-08 General Electric Company Fail-fixed electrohydraulic servosystem
IT1140467B (it) * 1981-10-27 1986-09-24 Giorgio Cafarelli Valvola ad ugello oscillante
US4510848A (en) * 1982-09-30 1985-04-16 General Electric Company Shear-type fail-fixed servovalve
US4827981A (en) * 1988-01-25 1989-05-09 Moog Inc. Fail-fixed servovalve with controlled hard-over leakage
US5622095A (en) * 1995-06-28 1997-04-22 Foster; Raymond K. Hydraulic drive and control system
US5735122A (en) * 1996-11-29 1998-04-07 United Technologies Corporation Actuator with failfixed zero drift
US6554014B2 (en) * 2000-10-13 2003-04-29 Hydraforce, Inc. Proportional pilot operated directional valve
FR2818331B1 (fr) 2000-12-19 2003-03-14 Snecma Moteurs Servo-valve a memoire de position
US7455074B2 (en) * 2005-07-28 2008-11-25 Honeywell International Inc. Latchable electrohydraulic servovalve
FR2914030B1 (fr) * 2007-03-21 2009-07-03 Hispano Suiza Sa Dispositif de commande de position d'un actionneur par une servovalve a memoire de position en cas de panne
DE102007058518A1 (de) * 2007-12-05 2009-06-18 Abb Ag Verfahren zum Betrieb eines Stellungsreglers
US9217376B2 (en) * 2008-11-13 2015-12-22 Sikorsky Aircraft Corporation Multi-mode adaptive fail-fixed system for FADEC controlled gas turbine engines
FR2981133B1 (fr) * 2011-10-10 2013-10-25 In Lhc Procede de detection de defaillance d'une servovalve et servovalve faisant application.
EP3431780B1 (fr) * 2017-07-20 2020-04-15 Hamilton Sundstrand Corporation Servo-soupape
JP7028760B2 (ja) * 2018-12-28 2022-03-02 Ckd株式会社 スプール弁
US11391301B2 (en) * 2020-04-14 2022-07-19 Honeywell International Inc. Electrohydraulic poppet valve device control that maintains the last commanded position of a device upon power interruption and provides back-up position control

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2796851A (en) * 1954-03-30 1957-06-25 Int Harvester Co Valve operating mechanism for hydraulic steering systems
US3028880A (en) * 1960-04-05 1962-04-10 Sperry Rand Corp Fluid flow control valve
US3282283A (en) * 1963-12-23 1966-11-01 Gocko Regulator Co Ltd Hydraulic regulating system and apparatus
US3472278A (en) * 1966-10-27 1969-10-14 Henriksen & Henriksen I S Slide valve for opening and closing at least one passage for a flowing medium and an apparatus comprising at least one such slide valve
US3528446A (en) * 1968-02-27 1970-09-15 Sperry Rand Corp Servo valve with resiliently mounted jet pipe
DE2161923A1 (de) * 1971-12-14 1973-06-20 Bosch Gmbh Robert Elektrohydraulische steuereinrichtung

Also Published As

Publication number Publication date
FR2259263B1 (fr) 1980-11-07
JPS604364B2 (ja) 1985-02-04
DE2503067A1 (de) 1975-07-31
US3922955A (en) 1975-12-02
BE824920A (fr) 1975-05-15
FR2259263A1 (fr) 1975-08-22
JPS50107387A (fr) 1975-08-23
DE2503067C2 (fr) 1989-09-28
IT1031166B (it) 1979-04-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930124