GB758523A - Liquid-operated servo mechanisms - Google Patents
Liquid-operated servo mechanismsInfo
- Publication number
- GB758523A GB758523A GB2243953A GB2243953A GB758523A GB 758523 A GB758523 A GB 758523A GB 2243953 A GB2243953 A GB 2243953A GB 2243953 A GB2243953 A GB 2243953A GB 758523 A GB758523 A GB 758523A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- capsule
- servo
- piston
- pressure
- 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
- F15B9/02—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 with servomotors of the reciprocatable or oscillatable type
- F15B9/06—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 with servomotors of the reciprocatable or oscillatable type controlled by means using a fluid jet
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
758,523. Gas turbineplant. LUCAS (INDUSTRIES) Ltd., J. July 27, 1954 [Aug. 13, 1953], No. 22439/53. Class 110(3) [Also in Group XXIX] Apparatus for controlling the fuel supply to or otherwise regulating the operation of a jet-propulsion or gas turbine engine in response to the ratio of the blower delivery pressure to atmospheric pressure or the pressure at the blower inlet comprises a liquid operated servo-mechanism the control means of which includes a lever k actuated by two members d, q responsive to two pressure differences, one of the members d being an axially deformable elastic capsule one end of which is pivotally attached to the lever and the other end of which is movable by the servo-mechanism to vary the inclination of the axis of the capsule d relative to the lever and so vary the effective force of the capsule on the lever. Blower delivery pressure acts on the evacuated capsule d and also externally on a capsule q the interior of which is open atmospheric pressure or blower inlet pressure through a passage s. The spring-loaded servo-piston b is controlled by a vent valve j carried on the lever k. The piston rod c extends through both ends of the cylinder a, its lower end being connected to a member to be operated and its upper end being connected by a link v and pivoted arms t, u to the outer end of the evacuated capsule d, the inner end of which is pivoted to one end of the lever k. The lever k is loaded by a spring wand is pivoted between two compartments of a chambered body o. The lever is also actuated by the capsule q which has its axis at right angles to the lever. Blower delivery pressure'is effective on the. outside of both capsules through a passage r, The arrangement is such that if a change occurs in one of the pressures and hence in their ratio, the servo-piston operates on the capsule d to re-balance the forces on the lever and the position of the piston b is then indicative of the new ratio. In a modification, the vent valve j is replaced by an obturator or occulter adapted to interrupt the flow of servo-liquid to the top of the piston b, the capsule q is evacuated, and the capsule d is open to the atmosphere through a passage in the arm t and its supporting spindle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2243953A GB758523A (en) | 1953-08-13 | 1953-08-13 | Liquid-operated servo mechanisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2243953A GB758523A (en) | 1953-08-13 | 1953-08-13 | Liquid-operated servo mechanisms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB758523A true GB758523A (en) | 1956-10-03 |
Family
ID=10179380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2243953A Expired GB758523A (en) | 1953-08-13 | 1953-08-13 | Liquid-operated servo mechanisms |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB758523A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1199542B (en) * | 1959-06-24 | 1965-08-26 | United Aircraft Corp | Device for fuel supply for liquid rockets |
-
1953
- 1953-08-13 GB GB2243953A patent/GB758523A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1199542B (en) * | 1959-06-24 | 1965-08-26 | United Aircraft Corp | Device for fuel supply for liquid rockets |
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