GB1328459A - Apparatus for controlling a double acting piston and cylinder assembly - Google Patents

Apparatus for controlling a double acting piston and cylinder assembly

Info

Publication number
GB1328459A
GB1328459A GB1529371*[A GB1529371A GB1328459A GB 1328459 A GB1328459 A GB 1328459A GB 1529371 A GB1529371 A GB 1529371A GB 1328459 A GB1328459 A GB 1328459A
Authority
GB
United Kingdom
Prior art keywords
piston
cylinder
actuator
motor
amplifier
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
GB1529371*[A
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.)
Raytheon Co
Original Assignee
E Systems Inc
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 E Systems Inc filed Critical E Systems Inc
Publication of GB1328459A publication Critical patent/GB1328459A/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
    • F15B9/04—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 varying the output of a pump with variable capacity
    • 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
    • F15B9/03—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 with electrical control means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S60/00—Power plants
    • Y10S60/911—Fluid motor system incorporating electrical system

Abstract

1328459 Fluid-pressure servo-motor systems E-SYSTEMS Inc 17 May 1971 [22 May 1970] 15293/71 Heading G3P A piston and cylinder 10 is controlled by a pump 16 having its displacement varied by a movable member coupled to a servo-motor 14 receiving a control signal through an amplifier 12,transducers responsive to the positions of the member and the piston providing feedback signals to the amplifier. The pump has a swash plate adjusted through a gear train from a torque motor and generates a feedback signal by operation of a potentiometer while the piston and cylinder 10 provides a feedback signal through a linear differential transformer. In the preferred embodiment, the piston and cylinder is in the form of a tandem actuator with twin input channels and differential pistons 48, 50. Positive positioning of the actuator is ensured by a pressurised reservoir 64 which maintains a minimum pressure in the system and makes up or absorbs the differences in volume due to the differential pistons when the actuator is displaced, fluid flowing into the reservoir through a shuttle valve 68 and leaving through a check valve 66.
GB1529371*[A 1970-05-22 1971-05-17 Apparatus for controlling a double acting piston and cylinder assembly Expired GB1328459A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3973270A 1970-05-22 1970-05-22

Publications (1)

Publication Number Publication Date
GB1328459A true GB1328459A (en) 1973-08-30

Family

ID=21907073

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1529371*[A Expired GB1328459A (en) 1970-05-22 1971-05-17 Apparatus for controlling a double acting piston and cylinder assembly

Country Status (3)

Country Link
US (1) US3646754A (en)
JP (1) JPS5426675B1 (en)
GB (1) GB1328459A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196758A (en) * 1986-10-30 1988-05-05 Gen Electric Co Plc Hydraulically controlled actuator

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098491A (en) * 1975-01-09 1978-07-04 Vetco Offshore Industries, Inc. Methods and apparatus for the control of a suspended weight from a floating vessel
US4494911A (en) * 1983-04-29 1985-01-22 General Signal Corporation Piston pump servo control
US4667472A (en) * 1984-12-28 1987-05-26 The Boeing Company Electric integrated actuator with variable gain hydraulic output
US4655689A (en) * 1985-09-20 1987-04-07 General Signal Corporation Electronic control system for a variable displacement pump
US4875390A (en) * 1986-03-24 1989-10-24 Honda Giken Kogyo Kabushiki Kaisha Shift control device for hydrostatic continuously variable transmission
JPH0819904B2 (en) * 1987-01-27 1996-03-04 カルソニック株式会社 Variable capacity swash plate type compressor
WO2000016464A2 (en) * 1998-07-15 2000-03-23 Lucas Aerospace Power Transmission Control system with integrated actuation package
US7392113B2 (en) * 2005-02-08 2008-06-24 Halliburton Energy Services, Inc. Systems for controlling multiple actuators
US7433762B2 (en) * 2005-02-08 2008-10-07 Halliburton Energy Services, Inc. Methods for controlling multiple actuators
US9114798B1 (en) 2012-12-12 2015-08-25 Hydro-Gear Limited Partnership Electric actuator for drive apparatus
JP2017145851A (en) * 2016-02-16 2017-08-24 株式会社 神崎高級工機製作所 Hydraulic device and drive unit with speed reduction mechanism

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1269338A (en) * 1913-03-07 1918-06-11 Maurice Tourreil Variable-speed apparatus.
US1835453A (en) * 1929-06-20 1931-12-08 Westinghouse Electric & Mfg Co Rudder control for ships
US3046895A (en) * 1957-02-27 1962-07-31 Veb Zek Variable displacement pump control
US2977765A (en) * 1959-12-23 1961-04-04 Honeywell Regulator Co Servo motor control apparatus
US3321216A (en) * 1963-12-23 1967-05-23 Caterpillar Tractor Co Method and apparatus for controlling bounce in tractor-trailer combinations

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196758A (en) * 1986-10-30 1988-05-05 Gen Electric Co Plc Hydraulically controlled actuator
GB2196758B (en) * 1986-10-30 1990-11-07 Gen Electric Plc Hydraulically controlled actuator

Also Published As

Publication number Publication date
US3646754A (en) 1972-03-07
JPS5426675B1 (en) 1979-09-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years