GB592504A - Valve for pneumatically-operated apparatus, particularly electric circuit breakers - Google Patents
Valve for pneumatically-operated apparatus, particularly electric circuit breakersInfo
- Publication number
- GB592504A GB592504A GB23104/44A GB2310444A GB592504A GB 592504 A GB592504 A GB 592504A GB 23104/44 A GB23104/44 A GB 23104/44A GB 2310444 A GB2310444 A GB 2310444A GB 592504 A GB592504 A GB 592504A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- inlet
- pressure
- valve
- auxiliary valve
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
- H01H33/32—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator pneumatic
Landscapes
- Fluid-Driven Valves (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
592,504. Valves controlled by auxiliary valves. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Nov. 21, 1944, No. 23104. Convention date, Nov. 24, 1943. [Class 135] A valve for actuating, e.g., pneumaticallyoperated electrical circuit breakers of the kind operable only if a certain air pressure is available, comprises a housing 14, Fig. 1, having an inlet 15, an outlet 16, and an exhaust port 17. The space 5 between the large end of the spring- loaded differential piston 1 and the housing can be opened to the atmosphere through an auxiliary valve 6 having. an axially bored extension sliding in an axial bore in the piston. Normally, the piston, urged by the spring 4 and pressure air acting on the large end via the ports 9 and the bleed hole 10 in the auxiliary valve extension, seats over the inlet 15 so that only a part of the small end is exposed to the inlet pressure. On opening the auxiliary valve, the ports 9 are closed, the force on the large end decreases, and, when a desired pressure is available at the inlet, the small end leaves its seat so that air pressure acts over the whole of the smaller end to move the piston rapidly downwards. In a modification, a port 11, Fig. 2, is closed by a spindle when the auxiliary valve is opened and pressure air can leak between the spindle and the piston at 10<1>.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE244168X | 1943-11-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB592504A true GB592504A (en) | 1947-09-19 |
Family
ID=20306007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23104/44A Expired GB592504A (en) | 1943-11-24 | 1944-11-21 | Valve for pneumatically-operated apparatus, particularly electric circuit breakers |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH244168A (en) |
| FR (1) | FR909063A (en) |
| GB (1) | GB592504A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1137103B (en) * | 1953-10-10 | 1962-09-27 | Calor Emag Elektrizitaets Ag | Control valve device actuated by a button for compressed air or other flowing means for electrical switches |
| DE1181776B (en) * | 1962-10-22 | 1964-11-19 | Bbc Brown Boveri & Cie | Pressure gas switch in boiler design |
-
1944
- 1944-11-17 CH CH244168D patent/CH244168A/en unknown
- 1944-11-21 GB GB23104/44A patent/GB592504A/en not_active Expired
-
1945
- 1945-02-05 FR FR909063D patent/FR909063A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR909063A (en) | 1946-04-29 |
| CH244168A (en) | 1946-08-31 |
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