GB920331A - Improvements in and relating to a control operator for valves - Google Patents

Improvements in and relating to a control operator for valves

Info

Publication number
GB920331A
GB920331A GB860659A GB860659A GB920331A GB 920331 A GB920331 A GB 920331A GB 860659 A GB860659 A GB 860659A GB 860659 A GB860659 A GB 860659A GB 920331 A GB920331 A GB 920331A
Authority
GB
United Kingdom
Prior art keywords
piston
force motor
flapper
arm
valve
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
GB860659A
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.)
Fisher Governor Co
Original Assignee
Fisher Governor 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 Fisher Governor Co filed Critical Fisher Governor Co
Publication of GB920331A publication Critical patent/GB920331A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/16—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member
    • 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
    • F15B15/18—Combined units comprising both motor and pump
    • 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
    • F15B9/16—Systems essentially having two or more interacting servomotors, e.g. multi-stage
    • F15B9/17—Systems essentially having two or more interacting servomotors, e.g. multi-stage with electrical control means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S60/00—Power plants
    • Y10S60/916—Unitary construction
    • 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

Landscapes

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

Abstract

920,331. Fluid-pressure servomotor-control systems. FISHER GOVERNOR CO. March 12, 1959 [March 12, 1958], No. 8606/59. Class 135. Control means for a valve 28 comprises a piston 20 under the control of a flapper F<SP>1</SP>, F<SP>2</SP> responsive to movements of a force motor FM, and a feed-back connection incorporating a cam 146 between the piston and the force motor. As shown, the flapper F<SP>1</SP>, F<SP>2</SP>, which has hardened, stainless steel buttons coacting with ball valves in nozzles N<SP>1</SP>, N<SP>2</SP> connected with the two ends of the cylinder 22 and with separate supply pumps P<SP>1</SP>, P<SP>2</SP> for hydraulic fluid, is controlled by bellows B<SP>1</SP>, B<SP>2</SP> under the control of a pilot flapper PF<SP>1</SP>, PF<SP>2</SP> which is actuated by the force motor and controls nozzles PN<SP>1</SP>, PN<SP>2</SP> fed through restrictions R<SP>1</SP>, R<SP>2</SP> by a pump PP which shares a common driving motor PM with the pumps P<SP>1</SP>, P<SP>2</SP>. The force motor may alternatively operate the flapper F<SP>1</SP>, F<SP>2</SP> directly and the piston 20 may be a spring-loaded, single-acting device in which case only one nozzle N<SP>1</SP> or N<SP>2</SP> is provided. Valves 80 opened against loading- springs by pressure from the pump PP isolate the piston 20 in the event of pressure failure and a valve 98 may be opened to interconnect the two sides of the piston 20 to permit manual operation. The force motor, as shown, consists of an annular coil 110 connected to the flapper by an arm 60 and movable in an annular gap between poles 104, 106, the coil being fed by an amplifier EAC under the control of a rheostat 168 controlled by an element 166 responsive to the pressure at the outlet of the valve 28. The arm 60 carries an inertia weight (not shown) to reduce instability in the system. The force motor may alternatively be pneumatic. The feed-back cam 146 acts on the arm 60 through a roller 144 mounted on a lever 134 and a spring 132. An adjustable bias spring 120 may also act on the arm 60. In a practical embodiment the flappers are pivotally mounted by metal strips and the piston 20, flappers, and pumps &c. are housed in an oil reservoir. The force motor and feed-back arrangement are housed in a removable cover. A leakage collection and discharge chamber 152 is provided below the cylinder for the piston 20, and the stem 16 of the valve 28 carries an indicator.
GB860659A 1958-03-12 1959-03-12 Improvements in and relating to a control operator for valves Expired GB920331A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72083858 US2942581A (en) 1958-03-12 1958-03-12 Hydraulic operator

Publications (1)

Publication Number Publication Date
GB920331A true GB920331A (en) 1963-03-06

Family

ID=24895459

Family Applications (1)

Application Number Title Priority Date Filing Date
GB860659A Expired GB920331A (en) 1958-03-12 1959-03-12 Improvements in and relating to a control operator for valves

Country Status (2)

Country Link
US (1) US2942581A (en)
GB (1) GB920331A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2489014A1 (en) * 1980-08-19 1982-02-26 Proizv Ob Soj Portable stop valve drive equipment - has gas generator with ignition unit forming power supply

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3120103A (en) * 1959-04-27 1964-02-04 Gen Controls Co Electrohydraulic control system
US3058450A (en) * 1959-06-25 1962-10-16 Lissau Frederic Hydraulic positioning servo system
US3087468A (en) * 1959-09-10 1963-04-30 Fisher Governor Co Valve actuator
US3065735A (en) * 1960-11-22 1962-11-27 Moog Servocontrols Inc Servoactuator
US3107679A (en) * 1961-06-05 1963-10-22 Walter F Pawlowski Automatic tension control device
US3095002A (en) * 1961-06-20 1963-06-25 Bendix Corp Dry type hydraulic servo valve
US3175500A (en) * 1962-05-14 1965-03-30 Fisher Governor Co Electro-hydraulic actuator
US3157994A (en) * 1962-07-06 1964-11-24 Conoflow Corp Control system
DE1196512B (en) * 1963-07-23 1965-07-08 Boelkow G M B H Mechanical-hydraulic control aid for aircraft that are predominantly controlled by the acceleration process, especially for vertical take-off aircraft with thrust jet
US3349787A (en) * 1964-02-26 1967-10-31 Honeywell Inc Controlling apparatus
US3263427A (en) * 1965-09-20 1966-08-02 George C Childs Electro-pneumatic actuator including a self-contained closed source of restorative pneumatic pressure
US3353353A (en) * 1966-03-30 1967-11-21 Itt Electro-hydraulic actuator mechanism
US3425218A (en) * 1966-09-09 1969-02-04 Kaelle Regulatorer Ab Hydraulic actuator
US3435614A (en) * 1967-01-23 1969-04-01 Howard L Ledeen Self-contained hydraulic valve actuator
SE316939B (en) * 1967-01-27 1969-11-03 Kaelle Regulatorer Ab
US3505814A (en) * 1967-11-01 1970-04-14 Bell Aerospace Corp Valve operator system
US3565391A (en) * 1968-09-25 1971-02-23 Itt Pneumatic valve positioner
FR2061752B1 (en) * 1969-09-17 1973-12-07 Abex Corp
US3902318A (en) * 1974-08-28 1975-09-02 Sperry Rand Corp Power transmission
US3993094A (en) * 1975-04-21 1976-11-23 Allis-Chalmers Corporation Removable reservoir cover having internal parts of reservoir mounted thereon
US3977189A (en) * 1975-07-02 1976-08-31 Kubik Philip A Reservoir housing
US4041703A (en) * 1976-05-24 1977-08-16 Eaton Corporation Hydrostatic transmission with integral auxiliary pump
DE2633718A1 (en) * 1976-07-27 1978-02-02 Linde Ag HYDROSTATIC GEARBOX
US4065094A (en) * 1976-08-19 1977-12-27 Parker-Hannifin Corporation Hydraulic actuator
DE3727008A1 (en) * 1987-08-13 1989-02-23 Samson Ag ARRANGEMENT WITH A PNEUMATIC CONTROL VALVE
DE4142269A1 (en) * 1991-12-20 1993-06-24 Sensycon Ind Sensorsyst DEVICE FOR CONVERTING AN ELECTRICAL CURRENT SIGNAL INTO A MECHANICAL SET SIZE
US5570581B1 (en) * 1995-02-14 2000-03-07 Pacific Technical Equipment An Hydraulic valve operator
US8839920B2 (en) 2008-04-17 2014-09-23 Levant Power Corporation Hydraulic energy transfer
EP3626485B1 (en) 2013-03-15 2024-05-29 ClearMotion, Inc. Active vehicle suspension improvements
US9702349B2 (en) 2013-03-15 2017-07-11 ClearMotion, Inc. Active vehicle suspension system
WO2014152482A2 (en) * 2013-03-15 2014-09-25 Levant Power Corporation Multi-path fluid diverter valve
GB201316657D0 (en) * 2013-09-19 2013-11-06 Norgen Ltd Balance beam electro-pneumatic converter
DE102017206596A1 (en) * 2017-04-19 2018-10-25 Robert Bosch Gmbh Electrohydraulic system for underwater use with an electrohydraulic actuator
FR3072837B1 (en) * 2017-10-20 2021-01-22 Bernard Controls ACTUATOR FOR INDUSTRIAL VALVE OR VALVE WITH CONNECTION BOARD AND CONNECTOR
DE102018217150A1 (en) 2018-10-08 2020-04-09 Robert Bosch Gmbh Hydraulic system for use under water with a hydraulic actuator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536184A (en) * 1945-04-13 1951-01-02 Bailey Meter Co Pressure fluid follow-up servomotor
US2879781A (en) * 1955-11-18 1959-03-31 Honeywell Regulator Co Control apparatus
US2827020A (en) * 1956-10-11 1958-03-18 Foxboro Co Hydraulic valve positioning system with valve position feedback

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2489014A1 (en) * 1980-08-19 1982-02-26 Proizv Ob Soj Portable stop valve drive equipment - has gas generator with ignition unit forming power supply

Also Published As

Publication number Publication date
US2942581A (en) 1960-06-28

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