GB862948A - Improvements in or relating to two-way fluid pressure relief valves - Google Patents

Improvements in or relating to two-way fluid pressure relief valves

Info

Publication number
GB862948A
GB862948A GB23593/59A GB2359359A GB862948A GB 862948 A GB862948 A GB 862948A GB 23593/59 A GB23593/59 A GB 23593/59A GB 2359359 A GB2359359 A GB 2359359A GB 862948 A GB862948 A GB 862948A
Authority
GB
United Kingdom
Prior art keywords
bore
piston
valve
chamber
pressure
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
GB23593/59A
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.)
New York Air Brake LLC
Original Assignee
New York Air Brake LLC
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 New York Air Brake LLC filed Critical New York Air Brake LLC
Publication of GB862948A publication Critical patent/GB862948A/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
    • F16K17/20—Excess-flow valves
    • F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
    • F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
    • F16K17/26—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in either direction

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Abstract

862,948. Valves. NEW YORK AIR BRAKE CO. July 9, 1959 [Aug. 27, 1958], No. 23593/59. Class 135. A two-way pressure-relief valve comprises a housing 11, a valve bore 16 in the housing, two longitudinally-spaced pressure-chambers 19, 21 intersecting the bore; a reciprocable piston 22 located in the bore between the two chambers 19, 21, the opposite ends 23, 24 of the piston being subject to the pressures in the two chambers 19, 21; an axial bore 25 extending through the piston, valve seats 26, 27, one at each end of the axial bore; two reciprocable valve members 28, 29 guided in the valve bore on opposite sides of the piston and each biased by a spring into engagement with one of the seats; stops 35, 36 for limiting the movement of the piston and the valve members, the stops being so arranged that when the piston has reached the limit of its travel in the direction of either valve member the other valve member is unseated. The ends of the bore 16 are closed by threaded plugs 17, 18. The stops 35, 36 are formed by split-rings located in annular grooves in the bore 16. Each chamber 19, 21 has an inlet and an outlet 12, 14 and 13, 15, respectively. When the pressure in chamber 19 rises above that in chamber 21 the piston 22 moves to the right against the stop 36, the seat 26 leaving the valve member 28. Fluid pressure now acts on the member 29 and is relieved by movement of said member. A similar relief action occurs if the pressure in the chamber 21 rises above that in the chamber 19.
GB23593/59A 1958-08-27 1959-07-09 Improvements in or relating to two-way fluid pressure relief valves Expired GB862948A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US862948XA 1958-08-27 1958-08-27

Publications (1)

Publication Number Publication Date
GB862948A true GB862948A (en) 1961-03-15

Family

ID=22197608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23593/59A Expired GB862948A (en) 1958-08-27 1959-07-09 Improvements in or relating to two-way fluid pressure relief valves

Country Status (1)

Country Link
GB (1) GB862948A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1481938A1 (en) * 2003-05-30 2004-12-01 Glumann Machinenbau AG Gripper for lifting loads
CN110669551A (en) * 2019-10-28 2020-01-10 安徽理工大学 Coal gasification system and method
CN110760327A (en) * 2019-10-28 2020-02-07 安徽理工大学 Coal liquefaction device and process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1481938A1 (en) * 2003-05-30 2004-12-01 Glumann Machinenbau AG Gripper for lifting loads
CN110669551A (en) * 2019-10-28 2020-01-10 安徽理工大学 Coal gasification system and method
CN110760327A (en) * 2019-10-28 2020-02-07 安徽理工大学 Coal liquefaction device and process
CN110760327B (en) * 2019-10-28 2020-11-13 安徽理工大学 Coal liquefaction device and process

Similar Documents

Publication Publication Date Title
US2624585A (en) Four-way valve
GB1237487A (en) Check valve
ES310418A1 (en) Flow regulator for fluid working devices
ES416870A1 (en) Safety check valve for pressure fluid operated apparatus in particular presses
US2934080A (en) Valve
GB842238A (en) Improvements in or relating to electro-magnetically operated valves
GB862948A (en) Improvements in or relating to two-way fluid pressure relief valves
GB1197824A (en) Solenoid Operated Valve Assemblies.
ATE37222T1 (en) SAFETY VALVE.
ES403323A1 (en) Hydraulic flow control valve assemblies
GB1287843A (en)
US2381553A (en) Control valve for fluid-operated systems
GB926180A (en) Improvements in pressure relief valves, more particularly for hydraulic operating circuits
GB884537A (en) Check valve
GB1151399A (en) Hydraulic Stay
GB1393450A (en) Combined over-and-under pressure relief valves
GB870631A (en) Improvements relating to fluid pressure relief valves
US2529731A (en) Debooster
GB1249963A (en) Multiway valve
ES349707A1 (en) Relief valve
US3476134A (en) Pressure regulating valves
GB841730A (en) Improvements in relief valves
GB970307A (en) Improvements in or relating to shuttle valves
GB1016276A (en) Pressure relief means for pump
GB1237823A (en) Improved valve assembly