GB1276297A - Electro-hydraulic or electro-pneumatic valve system - Google Patents

Electro-hydraulic or electro-pneumatic valve system

Info

Publication number
GB1276297A
GB1276297A GB3040568A GB3040568A GB1276297A GB 1276297 A GB1276297 A GB 1276297A GB 3040568 A GB3040568 A GB 3040568A GB 3040568 A GB3040568 A GB 3040568A GB 1276297 A GB1276297 A GB 1276297A
Authority
GB
United Kingdom
Prior art keywords
windings
nozzle
control
fluid
coil unit
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
GB3040568A
Inventor
Anthony George Lithgow Shore
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.)
Dowty Technical Developments Ltd
Original Assignee
Dowty Technical Developments Ltd
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 Dowty Technical Developments Ltd filed Critical Dowty Technical Developments Ltd
Priority to GB3040568A priority Critical patent/GB1276297A/en
Priority to US3598151D priority patent/US3598151A/en
Priority to JP5051469A priority patent/JPS5011538B1/ja
Priority to DE19691932493 priority patent/DE1932493A1/en
Publication of GB1276297A publication Critical patent/GB1276297A/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
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
    • F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet
    • 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
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Servomotors (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

1276297. Valves DOWTY TECHNICAL DEVELOPMENTS Ltd 24 June 1969 [26 June 1968] 30405/68 Heading F2V An electrically-operated fluid-pressure reducing valve comprises a moving coil unit 32 carried in a magnetic structure 34 which provides a magnetic field across the gap 33, a nozzle 31 connecting with a source of fluid pressure through a fixed restrictor 41, an obturator 29 connected to the unit 32 to vary the fluid pressure in a space 38 between the restrictor and nozzle in accordance with the clearance between the obturator and nozzle, a pair of windings A, B forming part of the unit 32, and an electric supply having two circuits connected one to one winding and the other to the other winding so that forces are induced in the coil unit, and means for adjusting the current in one or both windings. In the embodiment described, the pressure in the space 38, together with that in and a similar space 37, moves spool valve 3 to control, e.g., a double-acting ram connected with the passages 12, 13 and supplied with fluid from a source connecting with a passage 14. In Fig. 3, windings C, D are wound on a moving coil unit 26, and two transistors 62, 63 form the output stages of an amplifier, the bases of which are supplied with voltages from a control signal source to vary the flow of current through windings A, D and B, C, disposed, respectively, in two separate circuits to produce opposing forces which move the obturators 24 and 29 and control the pressures in spaces 37, 38 respectively. In Fig. 4 (not shown), the two circuits are each fed by an amplifier, and if the supply to one circuit fails an automatic switch device switches to the other circuit so that control may still be provided.
GB3040568A 1968-06-26 1968-06-26 Electro-hydraulic or electro-pneumatic valve system Expired GB1276297A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB3040568A GB1276297A (en) 1968-06-26 1968-06-26 Electro-hydraulic or electro-pneumatic valve system
US3598151D US3598151A (en) 1968-06-26 1969-06-23 Electrohydraulic valve systems
JP5051469A JPS5011538B1 (en) 1968-06-26 1969-06-26
DE19691932493 DE1932493A1 (en) 1968-06-26 1969-06-26 Electric pressure reducing valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3040568A GB1276297A (en) 1968-06-26 1968-06-26 Electro-hydraulic or electro-pneumatic valve system

Publications (1)

Publication Number Publication Date
GB1276297A true GB1276297A (en) 1972-06-01

Family

ID=10307188

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3040568A Expired GB1276297A (en) 1968-06-26 1968-06-26 Electro-hydraulic or electro-pneumatic valve system

Country Status (4)

Country Link
US (1) US3598151A (en)
JP (1) JPS5011538B1 (en)
DE (1) DE1932493A1 (en)
GB (1) GB1276297A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191564A (en) * 1986-06-13 1987-12-16 Nuovo Pignone Spa Gas regulator-modulater for wall boilers

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50117845U (en) * 1974-03-07 1975-09-26
JPS50130079U (en) * 1974-04-10 1975-10-25

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781461A (en) * 1953-04-15 1957-02-12 Textron American Inc Electromagnetic vibration exciter
US2926221A (en) * 1957-11-21 1960-02-23 William A Kagdis Loudspeaker construction
GB1170281A (en) * 1966-02-16 1969-11-12 Dowty Technical Dev Ltd Electro-Hydraulic Servo Valves.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191564A (en) * 1986-06-13 1987-12-16 Nuovo Pignone Spa Gas regulator-modulater for wall boilers

Also Published As

Publication number Publication date
DE1932493A1 (en) 1970-01-02
US3598151A (en) 1971-08-10
JPS5011538B1 (en) 1975-05-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees