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 (enrdf_load_stackoverflow
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 (enrdf_load_stackoverflow)

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 (enrdf_load_stackoverflow) 1974-01-23
JPS5341316B2 true JPS5341316B2 (enrdf_load_stackoverflow) 1978-11-01

Family

ID=22907287

Family Applications (1)

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

Country Status (8)

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

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
GB2333815B (en) * 1997-08-26 2002-08-07 Luk Getriebe Systeme Gmbh A pressure medium control device
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
GB1406174A (en) 1975-09-17
US3742980A (en) 1973-07-03
FR2178857B1 (enrdf_load_stackoverflow) 1976-09-10
FR2178857A1 (enrdf_load_stackoverflow) 1973-11-16
JPS497674A (enrdf_load_stackoverflow) 1974-01-23
AU5208473A (en) 1974-08-15
CH571166A5 (enrdf_load_stackoverflow) 1975-12-31
DE2307785A1 (de) 1973-10-18
SE392325B (sv) 1977-03-21
AU471656B2 (en) 1976-04-29

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