GB1119556A - Electrohydraulic actuator - Google Patents

Electrohydraulic actuator

Info

Publication number
GB1119556A
GB1119556A GB40032/65A GB4003265A GB1119556A GB 1119556 A GB1119556 A GB 1119556A GB 40032/65 A GB40032/65 A GB 40032/65A GB 4003265 A GB4003265 A GB 4003265A GB 1119556 A GB1119556 A GB 1119556A
Authority
GB
United Kingdom
Prior art keywords
motor
channels
sept
combined
pick
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
GB40032/65A
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.)
North American Aviation Corp
Original Assignee
North American Aviation Corp
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 North American Aviation Corp filed Critical North American Aviation Corp
Publication of GB1119556A publication Critical patent/GB1119556A/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
    • F15B9/09—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 with electrical control means
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Servomotors (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1,119,556. Electric correspondence control systems. NORTH AMERICAN AVIATION, Inc. Sept. 20, 1965 [Sept. 28, 1964], No.40032/65. Heading G1N. [Also in Division G3] In an open loop control system Fig. 1, an input signal at 10 is fed through three parallel channels 12,13,14 to energize a motor 16 driving an output member 11 whose displacement is measured by three separate pick-offs 18,19,20 each connected in negative feed back relation to one of the channels 12,13,14, whereby the system continues to operate satisfactorily even when one or two of the channels become faulty. As described, the motor 16 is hydraulic and the input and pick-off signals are electrical, combined at amplifier 21, to control electro-hydraulic valves 15, whose flow outputs are combined at 17 to drive motor 16. The pickoffs 18,19,20 are differential transformers. Mechanical details of the valves, manifolds and motor are given.
GB40032/65A 1964-09-28 1965-09-20 Electrohydraulic actuator Expired GB1119556A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US399454A US3279323A (en) 1964-09-28 1964-09-28 Electrohydraulic actuator

Publications (1)

Publication Number Publication Date
GB1119556A true GB1119556A (en) 1968-07-10

Family

ID=23579566

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40032/65A Expired GB1119556A (en) 1964-09-28 1965-09-20 Electrohydraulic actuator

Country Status (5)

Country Link
US (1) US3279323A (en)
BE (1) BE670086A (en)
DE (1) DE1500459A1 (en)
GB (1) GB1119556A (en)
NL (1) NL6512547A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1131854A (en) * 1965-06-18 1968-10-30 Elliott Brothers London Ltd Improvements in and relating to the monitoring of control systems
US3429226A (en) * 1965-10-23 1969-02-25 Honeywell Inc Control apparatus
US3401600A (en) * 1965-12-23 1968-09-17 Bell Aerospace Corp Control system having a plurality of control chains each of which may be disabled in event of failure thereof
US3702575A (en) * 1971-06-01 1972-11-14 Nasa Redundant hydraulic control system for actuators
GB1400007A (en) * 1971-10-05 1975-07-16 Lucas Acrospace Ltd Electro-hydraulic actuator arrangement
US3813990A (en) * 1972-04-12 1974-06-04 Gen Electric Servo system including flow voting redundant failure correcting hydraulic actuator
USRE32588E (en) * 1978-08-28 1988-02-02 The Babcock & Wilcox Company Valve actuator system
US4256017A (en) * 1979-04-05 1981-03-17 The Bendix Corporation Differential area electrohydraulic doser actuator
US4398242A (en) * 1980-02-25 1983-08-09 The Boeing Company Electronic controller
FR2484106A1 (en) * 1980-06-10 1981-12-11 Guettmann Pierre FAST-RESPONSE CURRENT-FLOW CONVERTER, IN PARTICULAR FOR THE LOADING OF LOADING DEVICES, OR OTHERWISE, OR DISTRIBUTION DEVICES
FI90374C (en) * 1991-03-13 1994-01-25 Nestepaine Ab Oy Proportional Mechatronic actuator
US5615593A (en) * 1994-01-11 1997-04-01 Mcdonnell Douglas Corporation Method and apparatus for controllably positioning a hydraulic actuator
US7743675B2 (en) * 2008-06-04 2010-06-29 Siemens Energy, Inc. Apparatus for impact testing for electric generator stator wedge tightness
EP2383563A1 (en) * 2010-04-29 2011-11-02 Alstom Technology Ltd Method and device for testing the tightness of an electric machine stator core
US9556888B2 (en) 2012-05-24 2017-01-31 Parker-Hannifin Corporation Face mount interface for an electro-hydraulic actuator
CN105156409B (en) * 2015-09-06 2016-12-28 哈尔滨工业大学 A kind of electro-hydraulic actuator of ring taps formula

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124041A (en) * 1964-03-10 Servo amplifier
US2921562A (en) * 1954-12-17 1960-01-19 Hobson Ltd H M Flying control system for aircraft
FR1191239A (en) * 1957-02-26 1959-10-19 Sperry Gyroscope Co Ltd Hydraulic system for controlling servo motors
US3038449A (en) * 1959-06-03 1962-06-12 Gen Dynamics Corp Hydraulic control system
US3070071A (en) * 1960-03-11 1962-12-25 North American Aviation Inc Failure protected signal translating system

Also Published As

Publication number Publication date
DE1500459A1 (en) 1970-06-18
NL6512547A (en) 1966-03-29
US3279323A (en) 1966-10-18
BE670086A (en) 1966-01-17

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