GB764660A - Improvements in restrictor valves - Google Patents

Improvements in restrictor valves

Info

Publication number
GB764660A
GB764660A GB4502/55A GB450255A GB764660A GB 764660 A GB764660 A GB 764660A GB 4502/55 A GB4502/55 A GB 4502/55A GB 450255 A GB450255 A GB 450255A GB 764660 A GB764660 A GB 764660A
Authority
GB
United Kingdom
Prior art keywords
bellows
fluid
feb
needle
space
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
GB4502/55A
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.)
Schneider Electric Systems USA Inc
Original Assignee
Foxboro 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 Foxboro Co filed Critical Foxboro Co
Publication of GB764660A publication Critical patent/GB764660A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/365Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a diaphragm

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)
  • Actuator (AREA)

Abstract

764,660. Fluid-pressure servomotor-control systems; valves. FOXBORO CO. Feb. 15, 1955 [Feb. 18, 1954], No. 4502/55. Addition to 740,238. Class 135. A valve according to the parent Specification is mounted in a casing 861 with the needle 385 coaxially disposed with respect to a bellows 378, and elastic fluid from a source 392 is applied directly through a passage 394 to the space on one side of the bellows (e.g. the inside) and, by way of a port 395, the tapered passage past the needle, and an opening 396, to the space on the other side of the bellows (e.g. the outside). The assembly may be incorporated in a fluid-pressure control system where, as a combined restrictor and capacity, it forms part of the means to give a derivative effect.
GB4502/55A 1954-02-18 1955-02-15 Improvements in restrictor valves Expired GB764660A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US764660XA 1954-02-18 1954-02-18

Publications (1)

Publication Number Publication Date
GB764660A true GB764660A (en) 1956-12-28

Family

ID=22132208

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4502/55A Expired GB764660A (en) 1954-02-18 1955-02-15 Improvements in restrictor valves

Country Status (1)

Country Link
GB (1) GB764660A (en)

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