GB1010687A - Improvements in pressure-responsive valves - Google Patents
Improvements in pressure-responsive valvesInfo
- 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
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)
- Fluid-Pressure Circuits (AREA)
- Safety Valves (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.
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)
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)
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)
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 |
-
1963
- 1963-06-06 DE DE1963B0072187 patent/DE1258222B/en active Pending
-
1964
- 1964-05-28 GB GB2201764A patent/GB1010687A/en not_active Expired
Cited By (1)
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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