GB942123A - Fluid-pressure servoactuator - Google Patents
Fluid-pressure servoactuatorInfo
- Publication number
- GB942123A GB942123A GB3529262A GB3529262A GB942123A GB 942123 A GB942123 A GB 942123A GB 3529262 A GB3529262 A GB 3529262A GB 3529262 A GB3529262 A GB 3529262A GB 942123 A GB942123 A GB 942123A
- Authority
- GB
- United Kingdom
- Prior art keywords
- flapper
- spring
- arrangement
- fluid
- 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
-
- 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
- F15B9/17—Systems essentially having two or more interacting servomotors, e.g. multi-stage with electrical control means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Servomotors (AREA)
Abstract
942,123. Fluid-pressure servomotor control systems. MOOG SERVOCONTROLS Inc. Sept. 17, 1962, No. 35292/62. Heading G3P. A hydraulic servopiston 12 is controlled by a spool valve 21 which is centred by springs 63, 64 and displaced by variations of pressure in chambers 42, 44 occasioned by movement of a flapper 50 relative to nozzles 35, 36. The flapper is carried by a flexure tube 54 and has a portion passing between permanent magnetic pole pieces 60 so that it is caused to be deflected by energization of a coil 62. The flapper is subject to negative feedback through a cam 65 movable by the servopiston and a follower 66 engaging a cage 68 containing springs 74, 75 and biased by a spring 85. In a modification, the cage 68 is omitted and the flapper is engaged on its upper side by a single, adjustable spring and on its lower side by a spring which is engaged by a cam follower carried by a leaf spring. Further modifications referred to include a flapper arrangement as in Specification 845, 109, the control of gaseous instead of hydraulic fluid by the flapper, and arrangements in which a mechanical feedback between the spool valve and flapper are provided, and in which the valve spool is subject to load reaction feedback which may act through a high frequency pass arrangement. A three-stage control valve arrangement is also referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3529262A GB942123A (en) | 1962-09-17 | 1962-09-17 | Fluid-pressure servoactuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3529262A GB942123A (en) | 1962-09-17 | 1962-09-17 | Fluid-pressure servoactuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB942123A true GB942123A (en) | 1963-11-20 |
Family
ID=10376065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3529262A Expired GB942123A (en) | 1962-09-17 | 1962-09-17 | Fluid-pressure servoactuator |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB942123A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2244351A (en) * | 1990-05-12 | 1991-11-27 | Dowty Defence & Air Syst | A servo valve |
-
1962
- 1962-09-17 GB GB3529262A patent/GB942123A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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