GB1010687A - Improvements in pressure-responsive valves - Google Patents

Improvements in pressure-responsive valves

Info

Publication number
GB1010687A
GB1010687A GB2201764A GB2201764A GB1010687A GB 1010687 A GB1010687 A GB 1010687A GB 2201764 A GB2201764 A GB 2201764A GB 2201764 A GB2201764 A GB 2201764A GB 1010687 A GB1010687 A GB 1010687A
Authority
GB
United Kingdom
Prior art keywords
pressure
pilot valve
drain
piston
spring
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
GB2201764A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1010687A publication Critical patent/GB1010687A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/027—Installations or systems with accumulators having accumulator charging devices
    • 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
    • F16K17/0486—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 mechanical actuating means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Safety Valves (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1,010,687. Fluid-pressure servomotor systems. ROBERT BOSCH, G.m.b.H. May 28, 1964 [June 6, 1963], No. 22017/64. Heading G3P. A pressure relief valve for a hydraulic system comprises a main valve member 13 controlling relief of fluid from a pump delivery line 2 to a drain line 5. The main valve is opened when a pilot valve 21 is opened in response to increase in pressure above a predetermined value to allow leakage from a chamber 12 through a passage 28 to drain. The pilot valve 21 is loaded by a spring 23 which abuts a piston 25 slidable sealingly in a bore 20. The opposite side of the piston engages a spring 26 which is adjustable by an abutment 27. In operation, the pressure in the drain line 5 which also exists in the bore 20 acts on the piston 25 to reduce the spring loading on the pilot valve when the drain pressure rises thus providing for opening of the pilot valve at a constant predetermined value of the pump output pressure.
GB2201764A 1963-06-06 1964-05-28 Improvements in pressure-responsive valves Expired GB1010687A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1963B0072187 DE1258222B (en) 1963-06-06 1963-06-06 Pressure-dependent switching valve

Publications (1)

Publication Number Publication Date
GB1010687A true GB1010687A (en) 1965-11-24

Family

ID=6977338

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2201764A Expired GB1010687A (en) 1963-06-06 1964-05-28 Improvements in pressure-responsive valves

Country Status (2)

Country Link
DE (1) DE1258222B (en)
GB (1) GB1010687A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113323927A (en) * 2021-05-27 2021-08-31 宁波天祥新华液压有限公司 Energy-saving valve block of energy accumulator

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3119831A1 (en) * 1981-05-19 1982-12-16 Robert Bosch Gmbh, 7000 Stuttgart Hydraulic control device
DE4211551C2 (en) * 1992-04-06 1998-03-26 Rexroth Mannesmann Gmbh Variable pump with a pressure limiting and a pressure connection valve
DE4334167A1 (en) * 1993-10-07 1995-04-13 Rexroth Mannesmann Gmbh Hydraulic system for loading a hydraulic consumer with a regulated consumer pressure and choke valve in particular for use in such a hydraulic system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB576167A (en) * 1943-02-20 1946-03-21 Bendix Aviat Corp Improvements in or relating to fluid pressure regulating valves
GB586727A (en) * 1943-09-03 1947-03-28 Bendix Aviat Corp Improvements in or relating to pressure regulating valves
US2513681A (en) * 1946-02-28 1950-07-04 Bendix Aviat Corp Regulator valve
DE807348C (en) * 1949-03-15 1951-06-28 Concordia Maschinen Und Elek Z Controlled valve, especially solenoid valve
DE1052765B (en) * 1956-05-02 1959-03-12 Karl Laux Shut-off valve, especially for irrigation systems, with drive by the means to be shut off acting on a piston
US3023997A (en) * 1957-09-23 1962-03-06 Bendix Corp Accumulator charging valve
FR1321494A (en) * 1962-02-06 1963-03-22 Improvements made to relief valves for hydraulic installations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113323927A (en) * 2021-05-27 2021-08-31 宁波天祥新华液压有限公司 Energy-saving valve block of energy accumulator

Also Published As

Publication number Publication date
DE1258222B (en) 1968-01-04

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