DE69128882D1 - Hydraulisches Steuersystem und Richtungsumschaltventile - Google Patents

Hydraulisches Steuersystem und Richtungsumschaltventile

Info

Publication number
DE69128882D1
DE69128882D1 DE69128882T DE69128882T DE69128882D1 DE 69128882 D1 DE69128882 D1 DE 69128882D1 DE 69128882 T DE69128882 T DE 69128882T DE 69128882 T DE69128882 T DE 69128882T DE 69128882 D1 DE69128882 D1 DE 69128882D1
Authority
DE
Germany
Prior art keywords
control system
hydraulic control
direction switch
switch valves
valves
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 - Fee Related
Application number
DE69128882T
Other languages
English (en)
Other versions
DE69128882T2 (de
DE69128882T3 (de
Inventor
Toichi Hirata
Genroku Sugiyama
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co 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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=18095025&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69128882(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Application granted granted Critical
Publication of DE69128882D1 publication Critical patent/DE69128882D1/de
Publication of DE69128882T2 publication Critical patent/DE69128882T2/de
Publication of DE69128882T3 publication Critical patent/DE69128882T3/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • 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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
    • F15B13/0403—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves a secondary valve member sliding within the main spool, e.g. for regeneration flow
    • 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
    • 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
    • E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps
    • 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
    • E02F9/2296—Systems with a variable displacement pump
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • F15B11/05—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/163—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for sharing the pump output equally amongst users or groups of users, e.g. using anti-saturation, pressure compensation
    • 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
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/25—Pressure control functions
    • F15B2211/253—Pressure margin control, e.g. pump pressure in relation to load pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F15B2211/3053—In combination with a pressure compensating valve
    • F15B2211/30535—In combination with a pressure compensating valve the pressure compensating valve is arranged between pressure source and directional control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F15B2211/3053—In combination with a pressure compensating valve
    • F15B2211/30555—Inlet and outlet of the pressure compensating valve being connected to the directional control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31576—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and a single output member
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the return line
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/85—Control during special operating conditions
    • F15B2211/851—Control during special operating conditions during starting

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
DE69128882T 1990-11-26 1991-11-26 Hydraulisches Steuersystem und Richtungsumschaltventile Expired - Fee Related DE69128882T3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP31805990 1990-11-26
PCT/JP1991/001621 WO1992009809A1 (en) 1990-11-26 1991-11-26 Hydraulic driving system and direction change-over valves

Publications (3)

Publication Number Publication Date
DE69128882D1 true DE69128882D1 (de) 1998-03-12
DE69128882T2 DE69128882T2 (de) 1998-08-27
DE69128882T3 DE69128882T3 (de) 2002-04-25

Family

ID=18095025

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69128882T Expired - Fee Related DE69128882T3 (de) 1990-11-26 1991-11-26 Hydraulisches Steuersystem und Richtungsumschaltventile

Country Status (6)

Country Link
US (1) US5315826A (de)
EP (1) EP0516864B2 (de)
JP (1) JP2744846B2 (de)
KR (1) KR960006358B1 (de)
DE (1) DE69128882T3 (de)
WO (1) WO1992009809A1 (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE510508C2 (sv) * 1993-06-11 1999-05-31 Voac Hydraulics Boraas Ab Anordning för styrning av en hydraulisk motor
KR100348128B1 (ko) * 1994-09-30 2002-11-22 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 가변우선기능을갖는콘트롤밸브
KR100226281B1 (ko) * 1994-09-30 1999-10-15 토니헬샴 가변우선장치
US5715865A (en) * 1996-11-13 1998-02-10 Husco International, Inc. Pressure compensating hydraulic control valve system
JP3471814B2 (ja) * 1997-01-21 2003-12-02 日立建機株式会社 分流弁付き方向制御弁
US5878647A (en) * 1997-08-11 1999-03-09 Husco International Inc. Pilot solenoid control valve and hydraulic control system using same
US5890362A (en) * 1997-10-23 1999-04-06 Husco International, Inc. Hydraulic control valve system with non-shuttle pressure compensator
US5950429A (en) * 1997-12-17 1999-09-14 Husco International, Inc. Hydraulic control valve system with load sensing priority
DE19855187A1 (de) 1998-11-30 2000-05-31 Mannesmann Rexroth Ag Verfahren und Steueranordnung zur Ansteuerung eines hydraulischen Verbrauchers
DE19924473A1 (de) 1999-05-28 2000-11-30 Mannesmann Rexroth Ag Hydraulischer Antrieb mit mehreren auch einen Differentialzylinder umfassenden hydraulischen Verbrauchern, insbesondere an einer Kunststoffspritzgießmaschine
EP1333182B1 (de) 2000-09-29 2008-11-26 Kabushiki Kaisha Kawasaki Precision Machinery Hydraulische steuerung
DE10219719A1 (de) * 2002-05-02 2003-11-27 Sauer Danfoss Nordborg As Nord Hydraulische Ventilanordnung
DE10219717B3 (de) * 2002-05-02 2004-02-05 Sauer-Danfoss (Nordborg) A/S Hydraulische Ventilanordnung
DE10219718B4 (de) * 2002-05-02 2007-06-06 Sauer-Danfoss Aps Hydraulische Ventilanordnung
JP4155811B2 (ja) * 2002-12-13 2008-09-24 株式会社小松製作所 差圧調整弁
DE10325296A1 (de) * 2003-06-04 2004-12-23 Bosch Rexroth Ag Hydraulische Steueranordnung
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
US20080050787A1 (en) * 2003-12-02 2008-02-28 Hazuki Nagai Method for Manufacturing Optically Active Tetrahydrothiophene Derivative and Method for Crystallization of Optically Active Tetrahydrothiophene-3-Ol
DE10357471A1 (de) * 2003-12-09 2005-07-07 Bosch Rexroth Ag Hydraulische Steueranordnung
CN100410549C (zh) * 2004-12-28 2008-08-13 东芝机械株式会社 液压控制装置
JP4081487B2 (ja) * 2004-12-28 2008-04-23 東芝機械株式会社 油圧制御弁
JP4791823B2 (ja) * 2005-12-28 2011-10-12 東芝機械株式会社 ロードセンシング方式の油圧制御装置に用いられる油圧制御弁
EP2018482A1 (de) * 2006-05-15 2009-01-28 Nem S.P.A. Fluidstromverteilungsvorrichtung und die vorrichtung umfassende anlage zur fluidstromverteilung
US7921878B2 (en) * 2006-06-30 2011-04-12 Parker Hannifin Corporation Control valve with load sense signal conditioning
US9618017B2 (en) 2012-04-17 2017-04-11 Volvo Construction Equipment Ab Hydraulic system for construction equipment
JP6338428B2 (ja) * 2014-04-11 2018-06-06 Ｋｙｂ株式会社 バルブ構造
US10125797B2 (en) * 2014-11-21 2018-11-13 Parker-Hannifin Corporation Vent for load sense valves
FR3057309B1 (fr) * 2016-10-10 2018-11-16 Robert Bosch Gmbh Circuit hydraulique de commande multiple
US10323458B2 (en) 2016-10-21 2019-06-18 Caterpillar Inc. Dual pressure logic for a track drill circuit
WO2018225102A1 (en) * 2017-06-09 2018-12-13 Buffo Salvatore Safety valve for hydraulic systems

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037410A (en) † 1976-05-26 1977-07-26 The Cessna Aircraft Company Hydraulic control valve
DE2906670A1 (de) * 1979-02-21 1980-09-04 Bosch Gmbh Robert Ventileinrichtung zur lastkompensierten steuerung eines hydraulischen verbrauchers
JPS6032041B2 (ja) * 1979-07-27 1985-07-25 ダイキン工業株式会社 流体制御装置
US4361169A (en) * 1979-11-13 1982-11-30 Commercial Shearing, Inc. Pressure compensated control valves
DE3044144A1 (de) * 1980-11-24 1982-09-09 Linde Ag, 6200 Wiesbaden Hydrostatisches antriebssystem mit einer einstellbaren pumpe und mehreren verbrauchern
US4617798A (en) * 1983-04-13 1986-10-21 Linde Aktiengesellschaft Hydrostatic drive systems
DE3634728A1 (de) * 1986-10-11 1988-04-21 Rexroth Mannesmann Gmbh Ventilanordnung zum lastunabhaengigen steuern mehrerer gleichzeitig betaetigter hydraulischer verbraucher
US4787294A (en) * 1987-07-29 1988-11-29 Hydreco, Incorporated Sectional flow control and load check assembly
JP2582266B2 (ja) * 1987-09-29 1997-02-19 新キヤタピラー三菱株式会社 流体圧制御システム

Also Published As

Publication number Publication date
US5315826A (en) 1994-05-31
KR920704056A (ko) 1992-12-19
DE69128882T2 (de) 1998-08-27
EP0516864A4 (en) 1995-09-27
EP0516864A1 (de) 1992-12-09
WO1992009809A1 (en) 1992-06-11
DE69128882T3 (de) 2002-04-25
EP0516864B1 (de) 1998-02-04
JP2744846B2 (ja) 1998-04-28
EP0516864B2 (de) 2001-12-12
KR960006358B1 (ko) 1996-05-15

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8339 Ceased/non-payment of the annual fee