JPS5341316B2 - - Google Patents

Info

Publication number
JPS5341316B2
JPS5341316B2 JP3748473A JP3748473A JPS5341316B2 JP S5341316 B2 JPS5341316 B2 JP S5341316B2 JP 3748473 A JP3748473 A JP 3748473A JP 3748473 A JP3748473 A JP 3748473A JP S5341316 B2 JPS5341316 B2 JP S5341316B2
Authority
JP
Japan
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
JP3748473A
Other languages
Japanese (ja)
Other versions
JPS497674A (pt
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 filed Critical
Publication of JPS497674A publication Critical patent/JPS497674A/ja
Publication of JPS5341316B2 publication Critical patent/JPS5341316B2/ja
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)
JP3748473A 1972-04-03 1973-04-03 Expired JPS5341316B2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24062872A 1972-04-03 1972-04-03

Publications (2)

Publication Number Publication Date
JPS497674A JPS497674A (pt) 1974-01-23
JPS5341316B2 true JPS5341316B2 (pt) 1978-11-01

Family

ID=22907287

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3748473A Expired JPS5341316B2 (pt) 1972-04-03 1973-04-03

Country Status (8)

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

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 (de) * 1975-04-03 1986-10-23 Danfoss A/S, Nordborg Steuereinrichtung für mindestens einen hydraulisch betriebenen doppeltwirkenden Verbraucher
US4126293A (en) * 1976-07-16 1978-11-21 Control Concepts, Inc. Feathering valve assembly
DE3122436A1 (de) * 1981-06-05 1983-01-05 Mannesmann Rexroth GmbH, 8770 Lohr Proportional arbeitendes ventil
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
GB2342981B (en) * 1997-08-26 2002-02-20 Luk Lamellen & Kupplungsbau Hydrodynamic torque converter
FR2818331B1 (fr) * 2000-12-19 2003-03-14 Snecma Moteurs Servo-valve a memoire de position
JP4276491B2 (ja) * 2003-08-04 2009-06-10 日立建機株式会社 方向切換弁ブロック
DE102006040234A1 (de) * 2006-08-28 2008-03-06 Robert Bosch Gmbh LS-Steueranordnung
US8444400B2 (en) * 2009-02-13 2013-05-21 Caterpillar Inc. Hydraulic cylinder having piston-mounted bypass valve
CN103352889B (zh) * 2013-07-08 2015-07-01 太原理工大学 一种扒渣机液压系统冲击的缓冲方法
GB201313804D0 (en) * 2013-08-01 2013-09-18 Moog Controls Ltd Improvements in hydraulic servovalves
FR3083271B1 (fr) * 2018-06-27 2020-09-04 Safran Landing Systems Procede de commande d'un distributeur a tiroir a trois positions
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
JPS497674A (pt) 1974-01-23
DE2307785A1 (de) 1973-10-18
FR2178857A1 (pt) 1973-11-16
AU471656B2 (en) 1976-04-29
FR2178857B1 (pt) 1976-09-10
US3742980A (en) 1973-07-03
SE392325B (sv) 1977-03-21
CH571166A5 (pt) 1975-12-31
GB1406174A (en) 1975-09-17
AU5208473A (en) 1974-08-15

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