GB997136A - Improvements in fluid operable valve systems - Google Patents
Improvements in fluid operable valve systemsInfo
- Publication number
- GB997136A GB997136A GB4269063A GB4269063A GB997136A GB 997136 A GB997136 A GB 997136A GB 4269063 A GB4269063 A GB 4269063A GB 4269063 A GB4269063 A GB 4269063A GB 997136 A GB997136 A GB 997136A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- lock
- piston
- port
- fluid
- 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
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
997,136. Valves. ROSS OPERATING VALVE CO. Oct. 29, 1963 [Oct. 31, 1962; Sept. 12, 1963], No. 42690/63. Heading F2V. The position of a piston 39 connected e.g. to a three-way valve, is controlled by a solenoidactuated three-way pilot-valve 48 and a lock valve 15. With the latter in its right-hand position and the solenoid 51 energized fluid passes from an inlet 43 to a piston port 35 via lock valve ports 16, 21, pilot valve inlet and outlet 45, 46, lock-valve port 34 and lock-valve chamber 33 so holding the valve 15 in the position shown. If the solenoid 51 is deenergized, e.g. due to a circuit failure, the pilot valve 48 connects the chamber 33 and piston port 35 to an exhaust port 49 so that the piston 39 is spring-returned and the lock-valve 15 is urged by inlet pressure and a spring to the position shown. Upon repair of the circuit failure, the lock-valve 15 must be moved manually to the right before fluid pressure is again available at motor port 35. Similar conditions will apply as the result of reduction or disruption of the fluid-pressure supply and its subsequent restoration. In a modification, the lock-valve comprises two abutting parts, one part controlling the fluid flow to and from the valve actuating piston, and the other part being a manually-operable piston defining the movable portion of the lockvalve chamber. The fluid supply to the valve actuating piston does not pass through the pilot valve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23443262A | 1962-10-31 | 1962-10-31 | |
| US308546A US3253516A (en) | 1963-09-12 | 1963-09-12 | Valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB997136A true GB997136A (en) | 1965-07-07 |
Family
ID=26927924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4269063A Expired GB997136A (en) | 1962-10-31 | 1963-10-29 | Improvements in fluid operable valve systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB997136A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0521485A2 (en) * | 1991-07-02 | 1993-01-07 | Bang Yan Wen | Automatic control valve with isolation device between pilot and main valve |
-
1963
- 1963-10-29 GB GB4269063A patent/GB997136A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0521485A2 (en) * | 1991-07-02 | 1993-01-07 | Bang Yan Wen | Automatic control valve with isolation device between pilot and main valve |
| EP0521485A3 (en) * | 1991-07-02 | 1993-03-10 | Bang Yan Wen | Automatic control valve with isolation device between pilot and main valve |
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