GB823173A - Improvements in gas pressure control valves - Google Patents
Improvements in gas pressure control valvesInfo
- Publication number
- GB823173A GB823173A GB30687/57A GB3068757A GB823173A GB 823173 A GB823173 A GB 823173A GB 30687/57 A GB30687/57 A GB 30687/57A GB 3068757 A GB3068757 A GB 3068757A GB 823173 A GB823173 A GB 823173A
- Authority
- GB
- United Kingdom
- Prior art keywords
- closure
- seat
- piston
- outlet
- sleeve
- 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
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
- G05D16/107—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger with a spring-loaded piston in combination with a spring-loaded slideable obturator that move together over range of motion during normal operation
-
- 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
- G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
- G05D16/101—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger the controller being arranged as a multiple-way valve
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Fluid Pressure (AREA)
- Lift Valve (AREA)
Abstract
823,173. Valves. ENFO ENTWICKLUNGSUND FORSCHUNGS A.G. Oct. 1, 1957 [Oct. 2, 1956], No. 30687/57. Class 135. In a casing 1 are disposed adjustable main and return springs 2, 3, respectively, that act upon a valve closure 8 via a spingle 5b; the closure co-operates with upper and lower valve seats 6, 7 separated by a sleeve 7a. The seat 6, which may be provided with a gasket 9, is removable and may be ground to compensate for wear; shims 7b are positioned beneath the lower seat to adjust the lift of the closure 8. Sealing rings may be associated with one or both of the seats arid associated closure surfaces, which latter may be flat or conical. The seat 7, bolted to the casing 1, incorporates an axial or as shown a radial inlet I, which may be located in any one of four positions at 90-degree intervals. Sleeve 7a embodies diametrical holes 13a, 13b of different sizes, the smaller of which 13b leads to an outlet II whilst the other opens via a throttling nozzle 14 into a passage 15; the sleeve 7a may be rotated to reduce the effective size of the hole 13b. Passage 15 discharges fluid at the rear of a return piston 18 that acts on spring 3; in the position shown a washer 22 serves as a valve closure and prevents leakage losses between the piston 18 and its cylinder 19. The return piston 18 only exerts its full effect when the closure 8 contacts the seat 6, which latter with the closure 8 in the position shown, connects the outlet II and piston 18 to atmosphere through an outlet III. When the inlet pressure lifts the closure 8 from seat 7 the spacing of the closure 8 from the seat 6, is determined by the balance between the inlet pressure and the force exerted by the piston 18 through the spring 3, such spacing controlling the effective opening between outlets II and III and hence the pressure at outlet II. The outlet III also serves as an exhaust for the fluid from piston 18 when the closure 8 moves to the position shown.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT823173X | 1956-10-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB823173A true GB823173A (en) | 1959-11-04 |
Family
ID=3681635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30687/57A Expired GB823173A (en) | 1956-10-02 | 1957-10-01 | Improvements in gas pressure control valves |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB823173A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2456346A1 (en) * | 1978-07-12 | 1980-12-05 | Knorr Bremse Gmbh | Rapid response air pressure regulator - has venting stage to allow fast reaction of main regulating control piston |
-
1957
- 1957-10-01 GB GB30687/57A patent/GB823173A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2456346A1 (en) * | 1978-07-12 | 1980-12-05 | Knorr Bremse Gmbh | Rapid response air pressure regulator - has venting stage to allow fast reaction of main regulating control piston |
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