GB1090591A - Fluid pressure relief valve - Google Patents
Fluid pressure relief valveInfo
- 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
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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012001954A1 (en) * | 2012-02-02 | 2013-08-08 | Robert Bosch Gmbh | Valve assembly with pilot pump |
-
1964
- 1964-01-27 GB GB345064A patent/GB1090591A/en not_active Expired
- 1964-12-24 DE DE19641450582 patent/DE1450582A1/en active Pending
Cited By (1)
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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