GB937487A - Improvements relating to servo-motor operated apparatus - Google Patents
Improvements relating to servo-motor operated apparatusInfo
- Publication number
- GB937487A GB937487A GB2187059A GB2187059A GB937487A GB 937487 A GB937487 A GB 937487A GB 2187059 A GB2187059 A GB 2187059A GB 2187059 A GB2187059 A GB 2187059A GB 937487 A GB937487 A GB 937487A
- Authority
- GB
- United Kingdom
- Prior art keywords
- servomotor
- servomotors
- defective
- pressure
- switch
- 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Motors (AREA)
- Reciprocating Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
937,487. Fluid-pressure servomotor control systems. SHORT BROS. & HARLAND Ltd. May 25, 1960 [June 25, 1959], No. 21870/59. Class 135. In apparatus incorporating a plurality of servomotors A, B acting in parallel on a common output member 18, 19, means are provided for isolating any defective servomotor from its power supply in response to an unbalanced torque condition between the servo outputs initiated by the defective servomotor. In each servomotor a transducer 13 moves a piston valve 12 allowing either of two pistons 3, 4 to receive pressure via 8, 9, 10 and 11 or to exhaust via 16 or 17. The pistons act on crank discs 7 having arms 21, 22 which engage a spider 20 on the output shaft 18 through stiff springs 23. Should one servomotor fail, the unbalanced torque compresses a pair of springs and operates an associated micro-switch which energizes a solenoid to move a valve 25 to cut-off the pressure supply at 10 and by-pass the piston cylinders via passage 26. The micro-switch may also operate an indicator showing that the servomotors are not in sympathy. Three or more servomotors may be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2187059A GB937487A (en) | 1959-06-25 | 1959-06-25 | Improvements relating to servo-motor operated apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2187059A GB937487A (en) | 1959-06-25 | 1959-06-25 | Improvements relating to servo-motor operated apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB937487A true GB937487A (en) | 1963-09-18 |
Family
ID=10170197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2187059A Expired GB937487A (en) | 1959-06-25 | 1959-06-25 | Improvements relating to servo-motor operated apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB937487A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0173463A1 (en) * | 1984-08-11 | 1986-03-05 | LUCAS INDUSTRIES public limited company | Fluid powered actuator system |
-
1959
- 1959-06-25 GB GB2187059A patent/GB937487A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0173463A1 (en) * | 1984-08-11 | 1986-03-05 | LUCAS INDUSTRIES public limited company | Fluid powered actuator system |
| US4759258A (en) * | 1984-08-11 | 1988-07-26 | Lucas Industries, P.L.C. | Fluid powered actuator system |
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