GB1311738A - Fluid-pressure servo-unit - Google Patents

Fluid-pressure servo-unit

Info

Publication number
GB1311738A
GB1311738A GB3941770A GB3941770A GB1311738A GB 1311738 A GB1311738 A GB 1311738A GB 3941770 A GB3941770 A GB 3941770A GB 3941770 A GB3941770 A GB 3941770A GB 1311738 A GB1311738 A GB 1311738A
Authority
GB
United Kingdom
Prior art keywords
stage
valve
fluid
spool
piston
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
GB3941770A
Other languages
English (en)
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.)
Societe dApplications des Machines Motrices SAMM SA
Original Assignee
Societe dApplications des Machines Motrices SAMM SA
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 Societe dApplications des Machines Motrices SAMM SA filed Critical Societe dApplications des Machines Motrices SAMM SA
Publication of GB1311738A publication Critical patent/GB1311738A/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
    • 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
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
    • F15B13/0435—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being sliding 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
    • Y10T137/8593—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)
  • Servomotors (AREA)
  • Fluid-Pressure Circuits (AREA)
GB3941770A 1969-11-15 1970-08-14 Fluid-pressure servo-unit Expired GB1311738A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6939403A FR2067780A5 (enrdf_load_stackoverflow) 1969-11-15 1969-11-15

Publications (1)

Publication Number Publication Date
GB1311738A true GB1311738A (en) 1973-03-28

Family

ID=9043159

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3941770A Expired GB1311738A (en) 1969-11-15 1970-08-14 Fluid-pressure servo-unit

Country Status (7)

Country Link
US (1) US3709257A (enrdf_load_stackoverflow)
CH (1) CH532204A (enrdf_load_stackoverflow)
DE (1) DE2055447A1 (enrdf_load_stackoverflow)
ES (1) ES380366A1 (enrdf_load_stackoverflow)
FR (1) FR2067780A5 (enrdf_load_stackoverflow)
GB (1) GB1311738A (enrdf_load_stackoverflow)
SE (1) SE363527B (enrdf_load_stackoverflow)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5316183A (en) * 1976-07-28 1978-02-14 Hitachi Ltd Fluid pressure driving device
US4145956A (en) * 1977-04-25 1979-03-27 The United States Of America As Represented By The Secretary Of The Air Force Pilot operated stepping valve
US4212323A (en) * 1977-08-18 1980-07-15 Tomco, Inc. Power assist proportional remote controller
US4596271A (en) * 1980-10-02 1986-06-24 Brundage Robert W Fluid pressure device
CA1180639A (en) * 1980-11-12 1985-01-08 Robert W. Brundage Magnetically controlled fluid pressure device
DE3124062A1 (de) * 1981-06-10 1983-01-05 Fa. J.D. Neuhaus, 5810 Witten Handsteuerventil fuer ein hydraulikaggregat
DE3135855A1 (de) * 1981-09-10 1983-03-24 Backé, Wolfgang, Prof.Dr.-Ing., 5100 Aachen Vorrichtung zur lastunabhaengigen, einem eingangssignal proportionalen hub- und winkelregelung
DD206513A3 (de) * 1981-10-26 1984-01-25 Orsta Hydraulik Veb K Stetig verstellbares 2-wege-einbauventil
US4553735A (en) * 1982-01-13 1985-11-19 Brundage Robert W Solenoid controlled valve
US4432033A (en) * 1982-07-01 1984-02-14 Brundage Robert W Power source for a solenoid controlled fluid pressure device
US4545409A (en) * 1983-04-13 1985-10-08 Integral Hydraulik & Co. Electrohydraulic, two-stage, proportional displacement valve
DE3821700A1 (de) * 1988-06-28 1990-01-04 Deere & Co Steuervorrichtung fuer mindestens ein ventil
DE4142883C2 (de) * 1991-12-23 1994-07-28 Orenstein & Koppel Ag Elektro-magnetische Steuereinrichtung für Ventile
DK170121B1 (da) * 1993-06-04 1995-05-29 Man B & W Diesel Gmbh Gliderventil og stor totakts forbrændingsmotor
US5573036A (en) * 1996-01-11 1996-11-12 Sargent Controls & Aerospace/Dover Diversified Inc. Electro-hydraulic servovalve having mechanical feedback

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2763988A (en) * 1944-10-10 1956-09-25 Sperry Rand Corp Variable speed hydraulic transmission
US3000363A (en) * 1959-03-31 1961-09-19 Sanders Associates Inc Two stage hydraulic servo valve
US2996045A (en) * 1959-07-16 1961-08-15 Honeywell Regulator Co Time modulated hydraulic servo valve
US3060969A (en) * 1960-02-24 1962-10-30 Alkon Products Corp Hydraulic valve
US2977984A (en) * 1960-06-15 1961-04-04 United Aircraft Corp Servo solenoid valve
US3230841A (en) * 1963-08-30 1966-01-25 Ray A York Constant speed control for hydraulic motors
US3318331A (en) * 1964-01-18 1967-05-09 W E & F Control valve for high pressure hydraulic cylinders and the like
US3395617A (en) * 1965-08-30 1968-08-06 Ford Motor Co Servo motor for positioning a valve as a function of engine load

Also Published As

Publication number Publication date
DE2055447A1 (de) 1971-05-19
FR2067780A5 (enrdf_load_stackoverflow) 1971-08-20
US3709257A (en) 1973-01-09
SE363527B (enrdf_load_stackoverflow) 1974-01-21
CH532204A (fr) 1972-12-31
ES380366A1 (es) 1972-12-01

Similar Documents

Publication Publication Date Title
GB1311738A (en) Fluid-pressure servo-unit
GB1288351A (enrdf_load_stackoverflow)
GB1365143A (en) Variable bypass for fluid power transfer systems
GB1386975A (en) Hydraulic control valve
GB1401602A (en) Hydraulic system
GB1070618A (en) Power steering systems
GB1293550A (en) Improvements in and relating to control valves
GB1306886A (en) Hydraulic motor control circuit
GB1079915A (en) Improvements in or relating to fluid flow control valves
GB1448270A (en) Arrangement for limiting the reaction in hydraulic servoassisted steering gear
GB1406174A (en) Hydraulic control system
GB1154204A (en) Automatic Flow Diverter Valve
GB1089110A (en) Hydraulic servo control systems
GB1290741A (enrdf_load_stackoverflow)
GB1408814A (en) Control system for a hydrostartic transmission
GB1467706A (en) Control system for a variable pump or motor
GB1360155A (en) Proportional fo'ce amplifier
GB1007299A (en) Fluid control valves
GB1456836A (en) Servo assemblies and systems
GB1376063A (en) Control valve means for fluid motors
GB1477282A (en) Piston-valve control device
GB1176815A (en) Improvements in or relating to Hydrostatic Steering Systems, particularly for Motor Vehicles.
GB1277831A (en) Improvements in and relating to devices for varying the steering ratio for motor vehicles having servo steering systems
GB1374128A (en) Fluid flow control valve
GB1256881A (enrdf_load_stackoverflow)

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee