GB758523A - Liquid-operated servo mechanisms - Google Patents

Liquid-operated servo mechanisms

Info

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
Application number
GB2243953A
Inventor
Eugene Harold Warne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB2243953A priority Critical patent/GB758523A/en
Publication of GB758523A publication Critical patent/GB758523A/en
Expired legal-status Critical Current

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

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.
GB2243953A 1953-08-13 1953-08-13 Liquid-operated servo mechanisms Expired GB758523A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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