CA988811A - Hydraulic actuator controls - Google Patents

Hydraulic actuator controls

Info

Publication number: CA988811A
Authority: CA; Canada
Prior art keywords: hydraulic actuator; actuator controls; controls; hydraulic; actuator
Prior art date: 1972-11-08
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

CA184,352A

Other versions

CA184352S (en

Inventor

Ronald B. Walters

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.)

Unisys Group Services Ltd

Original Assignee

Sperry Rand 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.)

1972-11-08

Filing date

1973-10-26

Publication date

1976-05-11

1973-10-26 Application filed by Sperry Rand Ltd filed Critical Sperry Rand Ltd

1976-05-11 Application granted granted Critical

1976-05-11 Publication of CA988811A publication Critical patent/CA988811A/en

Status 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
- F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2496—Self-proportioning or correlating systems
- Y10T137/2544—Supply and exhaust type
- Y10T137/2554—Reversing or 4-way valve systems
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86574—Supply and exhaust
- Y10T137/86582—Pilot-actuated
- Y10T137/86606—Common to plural valve motor chambers
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86574—Supply and exhaust
- Y10T137/86582—Pilot-actuated
- Y10T137/86614—Electric

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Fluid-Pressure Circuits (AREA)
Servomotors (AREA)

CA184,352A 1972-11-08 1973-10-26 Hydraulic actuator controls Expired CA988811A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB5147172A GB1406326A (en)	1972-11-08	1972-11-08	Hydraulic actuator controls disazo pigment

Publications (1)

Publication Number	Publication Date
CA988811A true CA988811A (en)	1976-05-11

Family

ID=10460156

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA184,352A Expired CA988811A (en)	1972-11-08	1973-10-26	Hydraulic actuator controls

Country Status (8)

Country	Link
US (1)	US3874269A (en)
JP (1)	JPS5312031B2 (en)
CA (1)	CA988811A (en)
DE (1)	DE2355430C2 (en)
FR (1)	FR2205632B1 (en)
GB (1)	GB1406326A (en)
IT (1)	IT999089B (en)
SE (1)	SE402803B (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1462879A (en) *	1973-10-10	1977-01-26	Sperry Rand Ltd	Hydraulic actuator controls
DE2461021A1 (en) *	1974-12-21	1976-06-24	Bosch Gmbh Robert	DEVICE FOR CONTROLLING AT LEAST ONE HYDRAULIC CONTROL DEVICE
US3943957A (en) *	1975-03-17	1976-03-16	Sanders Associates, Inc.	Flow control valve with internal rate of flow feedback
JPS529781A (en) *	1975-07-12	1977-01-25	Hitachi Constr Mach Co Ltd	Hydraulic system for control function
US4619186A (en) *	1977-09-03	1986-10-28	Vickers, Incorporated	Pressure relief valves
US4250794A (en) *	1978-03-31	1981-02-17	Caterpillar Tractor Co.	High pressure hydraulic system
FR2435187A1 (en) *	1978-09-08	1980-04-04	Renault	ELECTROHYDRAULIC LIFTING DEVICE FOR AGRICULTURAL TOOLS
GB2050646B (en) *	1979-06-15	1983-04-13	Sperry Rand Corp	Hydraulic actuator controls
DE3071307D1 (en) *	1979-07-26	1986-02-06	Sperry Ltd	Hydraulic valve
DE3008929A1 (en) *	1980-03-08	1981-09-24	Schloemann-Siemag AG, 4000 Düsseldorf	SAFETY CONTROL DEVICE FOR HYDRAULICALLY HOLDING LOADS AGAINST UNCONTROLLED LOWERING AND LIFTING, FOR EXAMPLE ON VERTICAL PRESSES OR LOAD HOLDING DEVICES
DE3017080C2 (en) *	1980-05-03	1985-11-28	Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5000 Köln	Electro-hydraulic actuator
US4362089A (en) *	1980-06-16	1982-12-07	Caterpillar Tractor Co.	Valve system
DE3071022D1 (en) *	1980-06-16	1985-09-26	Caterpillar Tractor Co	Valve system
ZA825477B (en) *	1981-08-21	1983-06-29	Sperry Corp	Hydraulic control system
JPS5877905A (en) *	1981-09-02	1983-05-11	プル−テク・リミテツド	Hydraulic control valve
AU1587183A (en) *	1982-07-02	1984-01-05	Sperry Corp.	Hydraulic valve with dual feedback control
GB2138897B (en) *	1983-04-29	1986-09-10	Aisin Warner Kabushiki Kaishi	An automatic transmission for a vehicle
US5056561A (en) *	1990-02-08	1991-10-15	Byers James O	Remote controlled, individually pressure compensated valve
US5775198A (en) *	1997-03-07	1998-07-07	Alliedsignal Inc.	Control system for a limited stall load activator
CN100590324C (en) *	2006-10-16	2010-02-17	太原理工大学	Guide proportion directional throttle valve
KR101500744B1 (en) *	2008-11-19	2015-03-09	두산인프라코어 주식회사	Boom cylinder control circuit for construction machinery
KR101877988B1 (en) *	2011-12-28	2018-07-12	두산인프라코어 주식회사	Boom cylinder control circuit for construction machinery
DE102013206254A1 (en) *	2013-04-10	2014-10-16	Zf Friedrichshafen Ag	Valve system for controlling a system pressure regulation system
DE102015116764A1 (en) *	2015-10-02	2017-04-06	Linde Hydraulics Gmbh & Co. Kg	Hydraulic constant pressure system for a mobile work machine
US11540942B2 (en) *	2018-07-26	2023-01-03	Alcon Inc.	Redundant pneumatic circuit for reliability enhancement of vitrectomy instruments
CN111022408B (en) *	2020-01-06	2021-11-12	合肥工业大学	Combination valve with return oil way compensation load sensing function

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3003474A (en) *		1961-10-10		Hydraulic control system with flow
US3038498A (en) *	1956-09-25	1962-06-12	Borg Warner	Hydraulic amplifier
US2944530A (en) *	1959-04-29	1960-07-12	Alfred C Johnson	Pneumatic control means for reciprocable pistons
FR1361466A (en) *	1963-04-09	1964-05-22	Hispano Suiza Sa	Improvements to hydraulic control systems with double-acting receiving devices
US3555969A (en) *	1968-08-08	1971-01-19	Bell Aerospace Corp	Servovalve having dynamic load adaptive response while maintaining static performance unaffected
US3555970A (en) *	1968-08-08	1971-01-19	Bell Aerospace Corp	Pressure regulator for servo valve having dynamic load adaptive response
SE360190B (en) *	1970-01-05	1973-09-17	Sperry Rand Ltd
CA943040A (en) *	1970-10-06	1974-03-05	Ronald B. Walters	Hydraulic actuator controls

1972
- 1972-11-08 GB GB5147172A patent/GB1406326A/en not_active Expired
1973
- 1973-10-26 CA CA184,352A patent/CA988811A/en not_active Expired
- 1973-10-30 IT IT7330741A patent/IT999089B/en active
- 1973-11-01 US US412024A patent/US3874269A/en not_active Expired - Lifetime
- 1973-11-06 DE DE2355430A patent/DE2355430C2/en not_active Expired
- 1973-11-07 SE SE7315105A patent/SE402803B/en unknown
- 1973-11-07 FR FR7339583A patent/FR2205632B1/fr not_active Expired
- 1973-11-08 JP JP12588673A patent/JPS5312031B2/ja not_active Expired

Also Published As

Publication number	Publication date
DE2355430C2 (en)	1984-11-22
AU6199473A (en)	1975-05-01
US3874269A (en)	1975-04-01
JPS5312031B2 (en)	1978-04-26
JPS4995091A (en)	1974-09-10
GB1406326A (en)	1975-09-17
FR2205632B1 (en)	1977-05-27
FR2205632A1 (en)	1974-05-31
DE2355430A1 (en)	1974-05-16
IT999089B (en)	1976-02-20
SE402803B (en)	1978-07-17

Publication	Publication Date	Title
CA988811A (en)	1976-05-11	Hydraulic actuator controls
CA943040A (en)	1974-03-05	Hydraulic actuator controls
CA962987A (en)	1975-02-18	Actuator
CA984264A (en)	1976-02-24	Hydraulic control system
AU476156B2 (en)	1976-09-16	Hydraulic valve unit
AU471656B2 (en)	1976-04-29	Hydraulic control system
CA998914A (en)	1976-10-26	Hydraulic control instrumentality
CA1024416A (en)	1978-01-17	Hydraulic actuator
CA991510A (en)	1976-06-22	Hydraulic actuator
CA990180A (en)	1976-06-01	Hydraulic valve
CA982903A (en)	1976-02-03	Hydraulic valve
CA983351A (en)	1976-02-10	Electro-hydraulic actuator
CA983814A (en)	1976-02-17	Hydraulic control valve
CA925406A (en)	1973-05-01	Hydraulic actuator
CA935356A (en)	1973-10-16	Hydraulic actuator
CA929831A (en)	1973-07-10	Hydraulic actuator controls
CA971843A (en)	1975-07-29	Actuator unit
CA988952A (en)	1976-05-11	Actuator assembly
CA963359A (en)	1975-02-25	Hydraulic actuator
CA911854A (en)	1972-10-10	Hydraulic actuator
CA903636A (en)	1972-06-27	Fluid operated actuator
CA910766A (en)	1972-09-26	Hydraulic control assembly
CA943436A (en)	1974-03-12	Hydraulic actuator controls
CA998913A (en)	1976-10-26	Hydraulic control valve
CA898635A (en)	1972-04-25	Actuator