GB895664A - Fluid-pressure control valve - Google Patents

Fluid-pressure control valve

Info

Publication number
GB895664A
GB895664A GB13888/60A GB1388860A GB895664A GB 895664 A GB895664 A GB 895664A GB 13888/60 A GB13888/60 A GB 13888/60A GB 1388860 A GB1388860 A GB 1388860A GB 895664 A GB895664 A GB 895664A
Authority
GB
United Kingdom
Prior art keywords
port
working port
valve element
fluid
inlet
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
GB13888/60A
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.)
Bendix Westinghouse Automotive Air Brake Co
Original Assignee
Bendix Westinghouse Automotive Air Brake 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 Bendix Westinghouse Automotive Air Brake Co filed Critical Bendix Westinghouse Automotive Air Brake Co
Publication of GB895664A publication Critical patent/GB895664A/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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/08—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage
    • F16K17/082—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage with piston
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)

Abstract

895,664. Valves. BENDIX-WESTING- HOUSE AUTOMOTIVE AIR BRAKE CO. April 20, 1960 [July 7, 1959], No. 13888/60. Class 135. A fluid-pressure control valve comprises a valve element 20 reciprocable between first and second positions in a bore 24 formed in a casing 10 having an inlet port 12, a working port 14 and an atmospheric port 18, a spring 40 normally maintaining the valve in the first position against the fluid pressure in the inlet 12, the outer periphery of the valve element sealingly engaging a pair of resilient 0-rings 50, 52 on opposite sides of the working port, and fluid flow passages 32, 38 for communicating the working port either to the inlet port or to the atmospheric port such that in the first position of the valve element, the 0-ring 50 seals off communication between the working port and the inlet port, the working port then being connected to the atmospheric port and, in the second position, the 0-ring 52 seals off communication between the working port and atmospheric port, the working port being connected to the inlet port. The valve element is constituted by two pistons 22, 26, the piston 26 being of larger diameter in order to provide a snap-action. Specification 683,350 is referred to.
GB13888/60A 1959-07-07 1960-04-20 Fluid-pressure control valve Expired GB895664A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US895664XA 1959-07-07 1959-07-07

Publications (1)

Publication Number Publication Date
GB895664A true GB895664A (en) 1962-05-02

Family

ID=22218346

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13888/60A Expired GB895664A (en) 1959-07-07 1960-04-20 Fluid-pressure control valve

Country Status (1)

Country Link
GB (1) GB895664A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2649033A1 (en) * 1976-10-28 1978-05-03 Wella Ag Differential pressure overflow valve - has slotted guide tube for adjusting nut protrusion covered by transparent sealed sheet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2649033A1 (en) * 1976-10-28 1978-05-03 Wella Ag Differential pressure overflow valve - has slotted guide tube for adjusting nut protrusion covered by transparent sealed sheet

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