GB1090591A - Fluid pressure relief valve - Google Patents

Fluid pressure relief valve

Info

Publication number
GB1090591A
GB1090591A GB345064A GB345064A GB1090591A GB 1090591 A GB1090591 A GB 1090591A GB 345064 A GB345064 A GB 345064A GB 345064 A GB345064 A GB 345064A GB 1090591 A GB1090591 A GB 1090591A
Authority
GB
United Kingdom
Prior art keywords
pressure
valve
piston
diaphragm
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
GB345064A
Inventor
Leslie Sterling
Roger James Gates
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.)
Wartsila Water Systems Ltd
Original Assignee
Hamworthy Pumps and Compressors 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 Hamworthy Pumps and Compressors Ltd filed Critical Hamworthy Pumps and Compressors Ltd
Priority to GB345064A priority Critical patent/GB1090591A/en
Priority to DE19641450582 priority patent/DE1450582A1/en
Publication of GB1090591A publication Critical patent/GB1090591A/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
    • F16K17/10—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 auxiliary valve for fluid operation of the main valve
    • 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
    • G05D16/0655—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 one spring-loaded membrane

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Abstract

1,090,591. Fluid-pressure servomotor systems. HAMWORTHY PUMPS & COMPRESSORS Ltd. Nov.18, 1964 [Jan. 27, 1964], No. 3450/64. Heading G3P. [Also in Division F2] A valve for limiting the discharge pressure from a pump includes a differential-area piston 4, Fig. 1a, having its smaller face 5 directly exposed to the discharge pressure at 3 and its larger face 7 contiguous with a space 9 connected to the discharge pressure by way of flow restricting means 10, part of the space 9 being separated from the piston by a diaphragm 13 and connected to the suction pressure at 2. After the pump has been started a valve 11, which may be electrically actuated from the pump motor windings, is closed so that a slow build up of pressure takes place on the larger face 7 through the restriction 10 to close the valve 4. If the valve 11, which may be a needle valve, is cracked open or by-passed by an adjustable orifice, pressure bleeds from the space 9 to regulate the discharge pressure. The diaphragm 13 facilitates starting by providing a body of fluid which can be displaced through a balance pipe 12 into the suction side of the pump so that the initial movement of the piston 4 is unimpeded. A loading weight 13' may be connected to the diaphragm as shown in Fig. 2 and the piston may have a spring-loaded ball relief valve 55 to relieve surges on its larger face. An adjustably spring-loaded pressure relief valve 16' may be used to control the pressure in the space 9 and the closure member of this valve may consist of a piston loaded by an internal spring and having an orifice in its closure face. The piston 4 may also be controlled by a diaphragm-actuated needle valve, the diaphragm being subjected to pressure or vacuum at a remote point.
GB345064A 1964-01-27 1964-01-27 Fluid pressure relief valve Expired GB1090591A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB345064A GB1090591A (en) 1964-01-27 1964-01-27 Fluid pressure relief valve
DE19641450582 DE1450582A1 (en) 1964-01-27 1964-12-24 Relief valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB345064A GB1090591A (en) 1964-01-27 1964-01-27 Fluid pressure relief valve

Publications (1)

Publication Number Publication Date
GB1090591A true GB1090591A (en) 1967-11-08

Family

ID=9758561

Family Applications (1)

Application Number Title Priority Date Filing Date
GB345064A Expired GB1090591A (en) 1964-01-27 1964-01-27 Fluid pressure relief valve

Country Status (2)

Country Link
DE (1) DE1450582A1 (en)
GB (1) GB1090591A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1914614A1 (en) * 2006-09-28 2008-04-23 Taichi Inada Proportional pressure control valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012001954A1 (en) * 2012-02-02 2013-08-08 Robert Bosch Gmbh Valve assembly with pilot pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1914614A1 (en) * 2006-09-28 2008-04-23 Taichi Inada Proportional pressure control valve

Also Published As

Publication number Publication date
DE1450582A1 (en) 1968-11-28

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