GB916973A - Improvements in or relating to fluid-pressure servomotor control systems - Google Patents
Improvements in or relating to fluid-pressure servomotor control systemsInfo
- Publication number
- GB916973A GB916973A GB1669459A GB1669459A GB916973A GB 916973 A GB916973 A GB 916973A GB 1669459 A GB1669459 A GB 1669459A GB 1669459 A GB1669459 A GB 1669459A GB 916973 A GB916973 A GB 916973A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- flapper
- piston
- stem
- 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
- F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
- F15B9/16—Systems essentially having two or more interacting servomotors, e.g. multi-stage
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Servomotors (AREA)
Abstract
916,973. Fluid-pressure servomotor-control systems. BELL AEROSPACE CORPORATION. May 15, 1959, No. 16694/59. Class 135. An hydraulic servo-mechanism comprises a pilot flapper valve 52 which controls a piston relay valve P which in turn controls an actuator 67. The valves 52 and P are in a housing 10. The flapper is formed by a leaf-spring extending from a stem 46 and is located between two nozzles 34, 35, the back pressures of which act on opposite ends of the piston relay valve P. The stem 46 is actuated by an electrical input signal to one of the coils 58, 59 or by a mechanical input signal to the rod 60. The lower end of the flapper spring 52 is received in a V-shaped groove 54 of the land 12 of the piston valve P, thus providing a mechanical feed-back connection between the piston valve P and the flapper valve 52. A rod 80 and a spring 81 form a mechanical feed-back connection between the actuator 67 and the stem 46 of the flapper valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1669459A GB916973A (en) | 1959-05-15 | 1959-05-15 | Improvements in or relating to fluid-pressure servomotor control systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1669459A GB916973A (en) | 1959-05-15 | 1959-05-15 | Improvements in or relating to fluid-pressure servomotor control systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB916973A true GB916973A (en) | 1963-01-30 |
Family
ID=10081937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1669459A Expired GB916973A (en) | 1959-05-15 | 1959-05-15 | Improvements in or relating to fluid-pressure servomotor control systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB916973A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4464976A (en) * | 1979-11-05 | 1984-08-14 | The Bendix Corporation | Two-stage pneumatic servomotor |
| GB2244351A (en) * | 1990-05-12 | 1991-11-27 | Dowty Defence & Air Syst | A servo valve |
-
1959
- 1959-05-15 GB GB1669459A patent/GB916973A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4464976A (en) * | 1979-11-05 | 1984-08-14 | The Bendix Corporation | Two-stage pneumatic servomotor |
| GB2244351A (en) * | 1990-05-12 | 1991-11-27 | Dowty Defence & Air Syst | A servo valve |
| US5150876A (en) * | 1990-05-12 | 1992-09-29 | Pickard Gerald W | Servo valve |
| GB2244351B (en) * | 1990-05-12 | 1994-09-14 | Dowty Defence & Air Syst | A servo valve |
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