GB837052A - Fluid pressure regulating valve device - Google Patents

Fluid pressure regulating valve device

Info

Publication number
GB837052A
GB837052A GB39025/57A GB3902557A GB837052A GB 837052 A GB837052 A GB 837052A GB 39025/57 A GB39025/57 A GB 39025/57A GB 3902557 A GB3902557 A GB 3902557A GB 837052 A GB837052 A GB 837052A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
plunger
pressure
valve
port
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
GB39025/57A
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.)
Westinghouse Air Brake Co
Original Assignee
Westinghouse 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 Westinghouse Air Brake Co filed Critical Westinghouse Air Brake Co
Publication of GB837052A publication Critical patent/GB837052A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
    • G05D16/0644—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator
    • G05D16/0672—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using several spring-loaded membranes
    • 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
    • G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
    • G05D16/0644—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator
    • G05D16/0663—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using a spring-loaded membrane with a spring-loaded slideable obturator
    • G05D16/0666—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using a spring-loaded membrane with a spring-loaded slideable obturator characterised by the form of the obturator

Abstract

837,052. Pressure-regulating valves. WESTINGHOUSE AIR BRAKE CO. Dec. 16, 1957 [Dec. 28, 1956], No. 39025/57. Class 135. In a self-lapping pressure-regulating valve the delivery pressure acting on the upper surface of a fixed-area diaphragm 9 is balanced by the supply pressure acting, through a passage 39, on the underside of a second diaphragm 12 of variable effective area, the variation in area being effected by downward movement of a plunger 5 to progressively disengage the upper surface of the diaphragm 12 from a conical seating 14 formed in the valve casing. Supply and pressure-release valves 2, 3 are connected by a stem 23 and engage seatings formed in an operating plunger 4 and plunger 5. Upon depressing plunger 4, valve 2 is unseated to allow pressure fluid to pass from inlet port 7 to delivery port 6 and, through a passage 40, to act upon diaphragm 9 and thus depress plunger 5 and unseat the central portion of diaphragm 12, the valves 2, 3 being reseated when equilibrium is established. Progressive operation of plunger 4 results in a larger area of diaphragm 12 being exposed to the supply pressure, thereby increasing the delivery pressure. Valve 3 governs venting through an atmospheric port 8, and downward movement of plunger 5 carries a flange 33 clear of an opening 34 in the diaphragm seating 14 to ensure that the upper surface of diaphragm 12 is subjected to atmospheric pressure through port 8.
GB39025/57A 1956-12-28 1957-12-16 Fluid pressure regulating valve device Expired GB837052A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US837052XA 1956-12-28 1956-12-28

Publications (1)

Publication Number Publication Date
GB837052A true GB837052A (en) 1960-06-09

Family

ID=22180147

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39025/57A Expired GB837052A (en) 1956-12-28 1957-12-16 Fluid pressure regulating valve device

Country Status (1)

Country Link
GB (1) GB837052A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6068014A (en) * 1997-03-26 2000-05-30 Smc Kabushiki Kaisha Pressure-reducing valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6068014A (en) * 1997-03-26 2000-05-30 Smc Kabushiki Kaisha Pressure-reducing valve
DE19810391C2 (en) * 1997-03-26 2003-02-06 Smc Kk Pressure reducing valve

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