AU471656B2 - Hydraulic control system - Google Patents

Hydraulic control system

Info

Publication number
AU471656B2
AU471656B2 AU52084/73A AU5208473A AU471656B2 AU 471656 B2 AU471656 B2 AU 471656B2 AU 52084/73 A AU52084/73 A AU 52084/73A AU 5208473 A AU5208473 A AU 5208473A AU 471656 B2 AU471656 B2 AU 471656B2
Authority
AU
Australia
Prior art keywords
control system
hydraulic control
hydraulic
control
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
AU52084/73A
Other versions
AU5208473A (en
Inventor
James Otto Byers, Jr
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.)
Lockheed Martin Corp
Original Assignee
Sanders Associates 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 Sanders Associates Inc filed Critical Sanders Associates Inc
Publication of AU5208473A publication Critical patent/AU5208473A/en
Application granted granted Critical
Publication of AU471656B2 publication Critical patent/AU471656B2/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
    • E02F9/2228—Control of flow rate; Load sensing arrangements using pressure-compensating valves including an electronic controller
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2282—Systems using center bypass type changeover valves
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2285—Pilot-operated systems
    • 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
    • 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
    • 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
    • Y10T137/8659—Variable orifice-type modulator
    • Y10T137/86598—Opposed orifices; interposed modulator
    • 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
    • Y10T137/8667—Reciprocating valve
    • Y10T137/86694—Piston valve
    • Y10T137/8671—With annular passage [e.g., spool]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Servomotors (AREA)
  • Fluid-Pressure Circuits (AREA)
AU52084/73A 1972-04-03 1973-02-12 Hydraulic control system Expired AU471656B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US24062872A 1972-04-03 1972-04-03
USUS240,628 1972-04-03

Publications (2)

Publication Number Publication Date
AU5208473A AU5208473A (en) 1974-08-15
AU471656B2 true AU471656B2 (en) 1976-04-29

Family

ID=22907287

Family Applications (1)

Application Number Title Priority Date Filing Date
AU52084/73A Expired AU471656B2 (en) 1972-04-03 1973-02-12 Hydraulic control system

Country Status (8)

Country Link
US (1) US3742980A (en)
JP (1) JPS5341316B2 (en)
AU (1) AU471656B2 (en)
CH (1) CH571166A5 (en)
DE (1) DE2307785A1 (en)
FR (1) FR2178857B1 (en)
GB (1) GB1406174A (en)
SE (1) SE392325B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893484A (en) * 1973-07-27 1975-07-08 Sanders Associates Inc Cylinder and piston valve
GB1484005A (en) * 1974-08-16 1977-08-24 Lucas Industries Ltd Land vehicle wheel suspension arrangement
DE2514624C3 (en) * 1975-04-03 1986-10-23 Danfoss A/S, Nordborg Control device for at least one hydraulically operated double-acting consumer
US4126293A (en) * 1976-07-16 1978-11-21 Control Concepts, Inc. Feathering valve assembly
DE3122436A1 (en) * 1981-06-05 1983-01-05 Mannesmann Rexroth GmbH, 8770 Lohr Proportional valve
GB2141262A (en) * 1983-06-08 1984-12-12 Dowty Hydraulic Units Ltd Servo valve
EP0150308A3 (en) * 1984-01-30 1986-10-01 Trw Inc. Apparatus for controlling fluid flow
US4591129A (en) * 1985-05-02 1986-05-27 Deere & Company Valve seal breakaway device
IT1302157B1 (en) * 1997-08-26 2000-07-31 Luk Getriebe Systeme Gmbh HYDRODYNAMIC TORQUE CONVERTER
FR2818331B1 (en) * 2000-12-19 2003-03-14 Snecma Moteurs SERVO VALVE WITH POSITION MEMORY
JP4276491B2 (en) * 2003-08-04 2009-06-10 日立建機株式会社 Directional valve block
DE102006040234A1 (en) * 2006-08-28 2008-03-06 Robert Bosch Gmbh LS control arrangement
US8444400B2 (en) * 2009-02-13 2013-05-21 Caterpillar Inc. Hydraulic cylinder having piston-mounted bypass valve
CN103352889B (en) * 2013-07-08 2015-07-01 太原理工大学 Method for buffering hydraulic system shock of crawler loader
GB201313804D0 (en) * 2013-08-01 2013-09-18 Moog Controls Ltd Improvements in hydraulic servovalves
FR3083271B1 (en) * 2018-06-27 2020-09-04 Safran Landing Systems CONTROL PROCEDURE FOR A THREE-POSITION DRAWER DISPENSER
US11592072B2 (en) * 2020-06-05 2023-02-28 The Boeing Company Dynamic load damping apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339584A (en) * 1964-06-25 1967-09-05 Borg Warner Directional control valve

Also Published As

Publication number Publication date
FR2178857B1 (en) 1976-09-10
JPS5341316B2 (en) 1978-11-01
US3742980A (en) 1973-07-03
AU5208473A (en) 1974-08-15
SE392325B (en) 1977-03-21
GB1406174A (en) 1975-09-17
DE2307785A1 (en) 1973-10-18
JPS497674A (en) 1974-01-23
FR2178857A1 (en) 1973-11-16
CH571166A5 (en) 1975-12-31

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