GB1188022A - Fluid Control Valves. - Google Patents
Fluid Control Valves.Info
- Publication number
- GB1188022A GB1188022A GB687467A GB687467A GB1188022A GB 1188022 A GB1188022 A GB 1188022A GB 687467 A GB687467 A GB 687467A GB 687467 A GB687467 A GB 687467A GB 1188022 A GB1188022 A GB 1188022A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- connection
- flow
- fluid
- piston
- 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
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Abstract
1,188,022. Valves. ELECTRO-HYDRAULICS Ltd. 13 Feb., 1968 [13 Feb., 1967], No. 6874/67. Heading F2V. The flow of fluid from a volume of pressure fluid, such as that within a mine roof support, is controlled by first and second valves 11, 13 operated by a piston 2 so that initially the valve 11 is opened to permit a restricted flow until the pressure falls to a predetermined value when the valve 13 is opened automatically to permit a substantially unrestricted flow, all of the flow passing across the seat of the valve 11. Fluid pressure admitted through the connection 4 raises the piston 2 and the valve 11 so that fluid can flow through the valve 13 from connection. 17 to connection 19 by way of an orifice 15. The pressure drop through the orifice holds the valve 13 closed until it has fallen to a value which can be overcome by the upward force on the piston 2. To reset the roof support, the connection 4 is vented and fluid under pressure admitted through the connection 19. In a further embodiment, the second valve consists of an inverted cup shaped member sliding within a fixed ported sleeve. The valves may also be arranged side by side with their flow paths in series and be operated by separate pistons or a common piston via a lever mechanism. Solenoids may be used in place of pistons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB687467A GB1188022A (en) | 1967-02-13 | 1967-02-13 | Fluid Control Valves. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB687467A GB1188022A (en) | 1967-02-13 | 1967-02-13 | Fluid Control Valves. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1188022A true GB1188022A (en) | 1970-04-15 |
Family
ID=9822365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB687467A Expired GB1188022A (en) | 1967-02-13 | 1967-02-13 | Fluid Control Valves. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1188022A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3981479A (en) * | 1974-06-14 | 1976-09-21 | Snap-Tite, Inc. | Check valve |
| US4291718A (en) * | 1979-02-26 | 1981-09-29 | Sanin Sergei A | Pressure valve |
| US4442859A (en) * | 1981-05-13 | 1984-04-17 | Otis Engineering Corporation | Control valve |
| GB2201754A (en) * | 1987-03-04 | 1988-09-07 | Kimura Kohki Co | Water flow control valve |
-
1967
- 1967-02-13 GB GB687467A patent/GB1188022A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3981479A (en) * | 1974-06-14 | 1976-09-21 | Snap-Tite, Inc. | Check valve |
| US4291718A (en) * | 1979-02-26 | 1981-09-29 | Sanin Sergei A | Pressure valve |
| US4442859A (en) * | 1981-05-13 | 1984-04-17 | Otis Engineering Corporation | Control valve |
| GB2201754A (en) * | 1987-03-04 | 1988-09-07 | Kimura Kohki Co | Water flow control valve |
| US4805667A (en) * | 1987-03-04 | 1989-02-21 | Kimura Kohki Co., Ltd. | Flow control valve |
| GB2201754B (en) * | 1987-03-04 | 1991-06-12 | Kimura Kohki Co | Flow control valve. |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |