GB841995A - Improvements in or relating to fluid-pressure servo mechanisms - Google Patents

Improvements in or relating to fluid-pressure servo mechanisms

Info

Publication number
GB841995A
GB841995A GB3109855A GB3109855A GB841995A GB 841995 A GB841995 A GB 841995A GB 3109855 A GB3109855 A GB 3109855A GB 3109855 A GB3109855 A GB 3109855A GB 841995 A GB841995 A GB 841995A
Authority
GB
United Kingdom
Prior art keywords
port
slave element
land
hand side
slave
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
GB3109855A
Inventor
Richard Samuel Jonathan Good
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.)
Boulton Paul Aircraft Ltd
Original Assignee
Boulton Paul Aircraft 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 Boulton Paul Aircraft Ltd filed Critical Boulton Paul Aircraft Ltd
Priority to GB3109855A priority Critical patent/GB841995A/en
Publication of GB841995A publication Critical patent/GB841995A/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
    • F15B9/08—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 valves affecting the fluid feed or the fluid outlet of the servomotor
    • F15B9/10—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 valves affecting the fluid feed or the fluid outlet of the servomotor in which the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same passage

Abstract

841,995. Fluid-pressure servomotor control systems. BOULTON PAUL AIRCRAFT Ltd. Jan. 31, 1957 [Oct. 31, 1955], No. 31098/55. Class 135. A double-acting hydraulically-operated servomechanism comprises a rotary master element 1 working in a cylindrical bore 3 of a slave element 4, which slave element is movable axially within a cylindrical housing 5, the master element being provided with a continuous land 9 contacting the bore of the slave element and having at least one helical portion designed to block a flow port 13 provided in the wall of the slave element so that rotation of the master element, e.g. by a torque motor 2, in one or the other sense to uncover this port will cause differential hydraulic pressure to be applied to opposed ends of the slave element to effect translatory movement thereof in a corresponding sense until the port is again closed by the helical portion of the land. Hydraulic pressure is applied to the left-hand side of the slave element, which is of smaller area than the righthand side, through a supply port 6 which communicates through a port 8 with a space on the left-hand side of the land 9, the other side of the land being open to an exhaust port 7. Port 13 communicates with the right-hand side of the slave element through a passage 14, so that uncovering of this port in one or the other direction by rotation of the land 9 will alternately supply pressure liquid to, or exhaust it from, the right-hand side of the slave element to cause the corresponding translatory movements beforementioned.
GB3109855A 1955-10-31 1955-10-31 Improvements in or relating to fluid-pressure servo mechanisms Expired GB841995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3109855A GB841995A (en) 1955-10-31 1955-10-31 Improvements in or relating to fluid-pressure servo mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3109855A GB841995A (en) 1955-10-31 1955-10-31 Improvements in or relating to fluid-pressure servo mechanisms

Publications (1)

Publication Number Publication Date
GB841995A true GB841995A (en) 1960-07-20

Family

ID=10317943

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3109855A Expired GB841995A (en) 1955-10-31 1955-10-31 Improvements in or relating to fluid-pressure servo mechanisms

Country Status (1)

Country Link
GB (1) GB841995A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1262777B (en) * 1962-09-12 1968-03-07 Boelkow Gmbh Hydraulic amplifier, in particular a hydraulically power-amplified actuator
WO1993019300A1 (en) * 1992-03-23 1993-09-30 C.W.F. Hamilton & Co. Limited Hydraulic cylinder feedback control
EP0767310A2 (en) * 1995-10-07 1997-04-09 EUROCOPTER DEUTSCHLAND GmbH Hydraulic actuator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1262777B (en) * 1962-09-12 1968-03-07 Boelkow Gmbh Hydraulic amplifier, in particular a hydraulically power-amplified actuator
WO1993019300A1 (en) * 1992-03-23 1993-09-30 C.W.F. Hamilton & Co. Limited Hydraulic cylinder feedback control
EP0767310A2 (en) * 1995-10-07 1997-04-09 EUROCOPTER DEUTSCHLAND GmbH Hydraulic actuator
EP0767310A3 (en) * 1995-10-07 1999-09-01 EUROCOPTER DEUTSCHLAND GmbH Hydraulic actuator

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