GB939661A - Improvements in fluid flow control valves - Google Patents
Improvements in fluid flow control valvesInfo
- Publication number
- GB939661A GB939661A GB1029659A GB1029659A GB939661A GB 939661 A GB939661 A GB 939661A GB 1029659 A GB1029659 A GB 1029659A GB 1029659 A GB1029659 A GB 1029659A GB 939661 A GB939661 A GB 939661A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- sleeve
- groove
- chamber
- ports
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0126—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
939,661. Valves. BLACK AUTOMATIC CONTROLS Ltd. June 23, 1960 [March 25, 1959], No. 10296/59. Class 135. Pressure fluid supplied to an inlet 26 flows through the bore of a control sleeve 3, ports 24 and an annular groove 25, both in the wall of the sleeve 3, a recess 12a in a piston 12, ports 23 leading from the recess 12a, a chamber 19, and a fixed orifice 6 in a pipe 7, to an outlet chamber 20. So long as there is a flow of fluid through the orifice 6 there is a pressure difference in chambers 19, 20, and hence across the piston 12, which urges the latter against a loading spring 10, thereby altering the degree of throttling of the groove 25 by a bush extension 18 of the piston, and thus varying the pressure difference across the latter until a new equilibrium position of the piston obtains. Any change in demand for fluid from the outlet chamber 20 will result in further movement of the piston to maintain a constant flow at the outlet. The sleeve 3 may be manually adjusted. In various modifications, the piston may be replaced by a diaphragm or bellows; the valve outlet may be connected directly to the pipe 7 instead of the chamber 20. The sleeve 3 may be dispensed with and the ports 24 and groove 25 formed in the wall of the valve casing 11, the groove co-operating with a land of the piston; in this case the spring sits upon an adjustable abutment.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1029659A GB939661A (en) | 1959-03-25 | 1959-03-25 | Improvements in fluid flow control valves |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1029659A GB939661A (en) | 1959-03-25 | 1959-03-25 | Improvements in fluid flow control valves |
Publications (1)
Publication Number | Publication Date |
---|---|
GB939661A true GB939661A (en) | 1963-10-16 |
Family
ID=9965246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1029659A Expired GB939661A (en) | 1959-03-25 | 1959-03-25 | Improvements in fluid flow control valves |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB939661A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5363876A (en) * | 1992-09-02 | 1994-11-15 | Kinetrol Limited | Flow control devices |
US6314980B1 (en) * | 1999-09-21 | 2001-11-13 | Paul R. Beswick | Pressure compensator flow control |
-
1959
- 1959-03-25 GB GB1029659A patent/GB939661A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5363876A (en) * | 1992-09-02 | 1994-11-15 | Kinetrol Limited | Flow control devices |
US6314980B1 (en) * | 1999-09-21 | 2001-11-13 | Paul R. Beswick | Pressure compensator flow control |
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