GB567645A - Improvements in cut-out valves for use in pressure oil systems - Google Patents

Improvements in cut-out valves for use in pressure oil systems

Info

Publication number
GB567645A
GB567645A GB1567142A GB1567142A GB567645A GB 567645 A GB567645 A GB 567645A GB 1567142 A GB1567142 A GB 1567142A GB 1567142 A GB1567142 A GB 1567142A GB 567645 A GB567645 A GB 567645A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
ports
seat
fluid
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
GB1567142A
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.)
Turner Manufacturing Co Ltd
Original Assignee
Turner Manufacturing Co Ltd
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 Turner Manufacturing Co Ltd filed Critical Turner Manufacturing Co Ltd
Priority to GB1567142A priority Critical patent/GB567645A/en
Publication of GB567645A publication Critical patent/GB567645A/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
    • 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
    • F16K17/044—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 more than one spring

Landscapes

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

Abstract

567,645. Valves. TURNER MANU. FACTURING CO., Ltd., and GROVES, W. R. Nov. 6, 1942, No. 15671. [Class 135] A relief valve for byepassing the delivery of a pump feeding an accumulator when the accumulator pressure exceeds a predetermined maximum, is adapted to open and close with a snap action. The relief valve 7 cooperates with a seat 8 and is integral with a small piston 6 of smaller area than the valve subject to the pressure in the outlet 3 transmitted through a passage 29. The valve is normally held to its seat by a spring 13 engaging an abutment 12 having a partspherical boss engaging a tapered bore in a large piston 10 engaging a hollow valve stem provided with ports 30 and 25. A bore 15 in the piston 10 is formed with a seat for a non- return valve 17 lightly loaded by a spring 20. Normally, fluid from an inlet 2 passes through a groove 31 and spring-loaded non-return valve 26 to the outlet 3. When the pressure reaches the desired maximum it acts on the piston 6 to crack open the valve 7, fluid then passes through ports 30, tubular stem 9 and ports 25 to act on the upper surface of the piston 10 to open the valve widely. Fluid then opens the valve 17 and passes through ports 21, 22 to the relief outlet 4. A bleed port 23 is formed in the valve 17 to prevent leakage past the main valve, building up a pressure above the piston 10. According to the Provisional Specification, the valve 7 may be replaced by a piston valve and the seating for the valve 17 is formed on the underside of the piston 10.
GB1567142A 1942-11-06 1942-11-06 Improvements in cut-out valves for use in pressure oil systems Expired GB567645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1567142A GB567645A (en) 1942-11-06 1942-11-06 Improvements in cut-out valves for use in pressure oil systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1567142A GB567645A (en) 1942-11-06 1942-11-06 Improvements in cut-out valves for use in pressure oil systems

Publications (1)

Publication Number Publication Date
GB567645A true GB567645A (en) 1945-02-26

Family

ID=10063327

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1567142A Expired GB567645A (en) 1942-11-06 1942-11-06 Improvements in cut-out valves for use in pressure oil systems

Country Status (1)

Country Link
GB (1) GB567645A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4722359A (en) * 1985-04-09 1988-02-02 Speck-Kolbenpumpen-Fabrik Otto Speck Kg Valve arrangement for high pressure pumps
WO2012087571A1 (en) * 2010-12-23 2012-06-28 Caterpillar Inc. Pressure protection valve for hydraulic tool
CN103148029A (en) * 2013-03-28 2013-06-12 长城汽车股份有限公司 Transmission and energy accumulator assembly thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4722359A (en) * 1985-04-09 1988-02-02 Speck-Kolbenpumpen-Fabrik Otto Speck Kg Valve arrangement for high pressure pumps
WO2012087571A1 (en) * 2010-12-23 2012-06-28 Caterpillar Inc. Pressure protection valve for hydraulic tool
US8939227B2 (en) 2010-12-23 2015-01-27 Caterpillar Inc. Pressure protection valve for hydraulic tool
CN103148029A (en) * 2013-03-28 2013-06-12 长城汽车股份有限公司 Transmission and energy accumulator assembly thereof
CN103148029B (en) * 2013-03-28 2015-07-01 长城汽车股份有限公司 Transmission and energy accumulator assembly thereof

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