GB820101A - Improvements relating to relief valves - Google Patents
Improvements relating to relief valvesInfo
- Publication number
- GB820101A GB820101A GB3052957A GB3052957A GB820101A GB 820101 A GB820101 A GB 820101A GB 3052957 A GB3052957 A GB 3052957A GB 3052957 A GB3052957 A GB 3052957A GB 820101 A GB820101 A GB 820101A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- valve member
- valve
- main valve
- cylinder
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Abstract
820,101. Fluid-pressure servomotor-control systems. ALLAM, P. S. (Merit Engineering Inc.). Sept. 30, 1957, No. 30529/57. Class 135. A relief valve assembly has a spring closed main valve member 11, slidable in a sleeve 19 secured in a valve body by a screwed cap 39, which is normally seated on an end 33 of the sleeve to obturate fluid flow from a relief port 17 through radial ports 24 in the sleeve, through an annular passage 35 around the valve stem, past the valve seating 33 and then through radial ports 44 in the plug to a return port 18. A spring-loaded pilot valve member 12 is coaxially slidable within the valve member and normally closes a port 30 in the bottom of the sleeve to prevent fluid flow from the inlet via grooves 27<SP>1</SP>, 32 in the outer side of the sleeve to a cylinder 29<SP>1</SP> formed below a piston-like end of the main valve member. When the valve is closed inlet pressure acting on annular faces 36, 37 of the main valve member balances this member, but when the inlet pressure exceeds a predetermined amount it causes the pilot valve to lift and admit pressure fluid to the cylinder 29<SP>1</SP> to open the main valve. The cylinder 29<SP>1</SP> exhausts via the passage formed between the pilot valve portion 50 and a sleeve 34 mounted in the main valve member and grooves 49 formed along the guided portion of the pilot valve member to join the other flow path through ports 44 to the return port 18.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3052957A GB820101A (en) | 1957-09-30 | 1957-09-30 | Improvements relating to relief valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3052957A GB820101A (en) | 1957-09-30 | 1957-09-30 | Improvements relating to relief valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB820101A true GB820101A (en) | 1959-09-16 |
Family
ID=10309078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3052957A Expired GB820101A (en) | 1957-09-30 | 1957-09-30 | Improvements relating to relief valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB820101A (en) |
-
1957
- 1957-09-30 GB GB3052957A patent/GB820101A/en not_active Expired
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