GB986800A - Relay valve assembly and fluid operated position control device - Google Patents

Relay valve assembly and fluid operated position control device

Info

Publication number
GB986800A
GB986800A GB2489361A GB2489361A GB986800A GB 986800 A GB986800 A GB 986800A GB 2489361 A GB2489361 A GB 2489361A GB 2489361 A GB2489361 A GB 2489361A GB 986800 A GB986800 A GB 986800A
Authority
GB
United Kingdom
Prior art keywords
valve
port
spool
support
baffle
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
GB2489361A
Inventor
Jan Fredrik Lund
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.)
Nexans Norway AS
Original Assignee
Standard Telefon OG Kabelfabrik AS
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 Standard Telefon OG Kabelfabrik AS filed Critical Standard Telefon OG Kabelfabrik AS
Publication of GB986800A publication Critical patent/GB986800A/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
    • F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
    • F16K31/128—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like servo actuated

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Servomotors (AREA)

Abstract

986,800. Fluid-pressure servomotor control systems. STANDARD TELEFON OG KABELFABRIK A. S. July 10,1961 [July 9, 1960],No. 24893/61. Heading G3P. In a pneumatic or hydraulic position control servo-system e.g.a valve positioner, the relay valve assembly comprises a baffle-nozzle pilot valve 16, 15 and a spool supply-exhaust valve 6, 7. The baffle is carried by a member 4 carrying a coil 2 in an air gap of a magnetic circuit comprising an iron ring,a permanent magnet and a support. The coil 2 receives signals from a measuring unit. The nozzle 15 is mounted on a cylindrical member 6 located in the bore of the support 5c. The spool valve 7 is loaded by an adjustable spring 8 and cooperation with supply, exhaust and output ports 11, 28, 17 Fig. 3b, in the cylindrical member 6, the said ports being connected to passages in the support 5c. The port 11 is connected by a surface groove to balancing port 39 and via a restriction 12 to a port 13 leading to the chamber 14 above the spool 7. The port 28 is connected by a surface groove to the space around the nozzle 15 and to a port 40 leading to the space below the spool 7. The cylindrical member 6 is easily removable if the grooves require to be cleaned. The output fluid pressure signal is transmitted to a diaphragm motor which actuates a regulating valve against spring pressure. A mechanical feedback linkage including levers and the spring 27 extends between the valve stem and the baffle support 4. The assembly is located in a housing and a diaphragm member isolates the feedback linkage . from the fluid.
GB2489361A 1960-07-09 1961-07-10 Relay valve assembly and fluid operated position control device Expired GB986800A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO13663260 1960-07-09

Publications (1)

Publication Number Publication Date
GB986800A true GB986800A (en) 1965-03-24

Family

ID=19908521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2489361A Expired GB986800A (en) 1960-07-09 1961-07-10 Relay valve assembly and fluid operated position control device

Country Status (1)

Country Link
GB (1) GB986800A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1550392B1 (en) * 1965-05-05 1971-08-26 Moog Inc PRESSURE-ACTUATED ELECTRICALLY CONTROLLED SERVO VALVE
DE1600741B1 (en) * 1966-02-16 1972-05-31 Dowty Technical Dev Ltd ELECTROHYDRAULIC CONTROL VALVE
DE2937103C2 (en) * 1979-09-13 1981-07-30 Kraftwerk Union AG, 4330 Mülheim Device for checking the correct closing of flap valves

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1550392B1 (en) * 1965-05-05 1971-08-26 Moog Inc PRESSURE-ACTUATED ELECTRICALLY CONTROLLED SERVO VALVE
DE1600741B1 (en) * 1966-02-16 1972-05-31 Dowty Technical Dev Ltd ELECTROHYDRAULIC CONTROL VALVE
DE2937103C2 (en) * 1979-09-13 1981-07-30 Kraftwerk Union AG, 4330 Mülheim Device for checking the correct closing of flap valves

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