DE69227760T2 - Ventilvorrichtung - Google Patents

Ventilvorrichtung

Info

Publication number
DE69227760T2
DE69227760T2 DE69227760T DE69227760T DE69227760T2 DE 69227760 T2 DE69227760 T2 DE 69227760T2 DE 69227760 T DE69227760 T DE 69227760T DE 69227760 T DE69227760 T DE 69227760T DE 69227760 T2 DE69227760 T2 DE 69227760T2
Authority
DE
Germany
Prior art keywords
valve device
valve
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
DE69227760T
Other languages
English (en)
Other versions
DE69227760D1 (de
Inventor
Kinya - Takahashi
Yusaku - Nozawa
Kazuyuki Ino
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
Application filed by Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Application granted granted Critical
Publication of DE69227760D1 publication Critical patent/DE69227760D1/de
Publication of DE69227760T2 publication Critical patent/DE69227760T2/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
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • 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
    • E02F9/2285—Pilot-operated systems
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
DE69227760T 1991-09-02 1992-09-02 Ventilvorrichtung Expired - Fee Related DE69227760T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP24644191 1991-09-02
PCT/JP1992/001120 WO1993005301A1 (en) 1991-09-02 1992-09-02 Valve device

Publications (2)

Publication Number Publication Date
DE69227760D1 DE69227760D1 (de) 1999-01-14
DE69227760T2 true DE69227760T2 (de) 1999-05-06

Family

ID=17148507

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69227760T Expired - Fee Related DE69227760T2 (de) 1991-09-02 1992-09-02 Ventilvorrichtung

Country Status (6)

Country Link
US (1) US5333449A (de)
EP (1) EP0559903B1 (de)
JP (1) JP3204975B2 (de)
KR (1) KR960000577B1 (de)
DE (1) DE69227760T2 (de)
WO (1) WO1993005301A1 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5447093A (en) * 1993-03-30 1995-09-05 Caterpillar Inc. Flow force compensation
DE4496043T1 (de) * 1993-08-13 1996-06-27 Komatsu Mfg Co Ltd Durchflussregelkreis in einer hydraulischen Schaltung
JP3646812B2 (ja) * 1995-05-02 2005-05-11 株式会社小松製作所 移動式破砕機の制御回路
US5791142A (en) * 1997-03-27 1998-08-11 Husco International, Inc. Hydraulic control valve system with split pressure compensator
JP4668445B2 (ja) * 2001-03-29 2011-04-13 東芝機械株式会社 油圧制御装置、建設機械および油圧ショベル
KR100527378B1 (ko) * 2003-06-25 2005-11-09 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 붐합류용 스플을 이용한 중장비 옵션장치용 유압회로
KR100559291B1 (ko) * 2003-06-25 2006-03-15 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 중장비 옵션장치용 유압회로
DE102004006683A1 (de) * 2004-02-11 2005-09-01 Zf Friedrichshafen Ag Schalteinheit
US7251934B2 (en) * 2004-03-27 2007-08-07 Cnh America Llc Work vehicle hydraulic system
US7614336B2 (en) * 2005-09-30 2009-11-10 Caterpillar Inc. Hydraulic system having augmented pressure compensation
US7967024B2 (en) * 2008-03-14 2011-06-28 Clark Equipment Company Hydraulic valve assembly with valve locking mechanism
SE534002C2 (sv) * 2009-06-24 2011-03-29 Nordhydraulic Ab Förfarande och anordning för styrning av ett hydraliskt system
US8631650B2 (en) 2009-09-25 2014-01-21 Caterpillar Inc. Hydraulic system and method for control
DE102010009705A1 (de) * 2010-03-01 2011-09-01 Robert Bosch Gmbh Hydraulische Steueranordnung
KR101767164B1 (ko) * 2010-12-29 2017-08-10 대동공업주식회사 트랙터용 로더밸브
DE102011119945A1 (de) * 2011-12-01 2013-06-06 Liebherr-Hydraulikbagger Gmbh Hydrauliksystem
US8899034B2 (en) * 2011-12-22 2014-12-02 Husco International, Inc. Hydraulic system with fluid flow summation control of a variable displacement pump and priority allocation of fluid flow
US9759238B2 (en) * 2012-08-16 2017-09-12 Volvo Construction Equipment Ab Hydraulic control valve for construction machinery
US9777464B2 (en) 2013-02-15 2017-10-03 Parker-Hannifin Corporation Variable load sense open center hybrid system
DE102013220750A1 (de) * 2013-10-15 2015-04-16 Robert Bosch Gmbh Ventilblock mit einer Ventilanordnung
KR102083686B1 (ko) * 2013-12-26 2020-03-02 두산인프라코어 주식회사 굴삭기용 압력피크 저감밸브 및 그 시스템
JP6621130B2 (ja) * 2015-02-06 2019-12-18 キャタピラー エス エー アール エル 油圧アクチュエータ制御回路
WO2023176318A1 (ja) * 2022-03-15 2023-09-21 株式会社クボタ 油圧システム

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942413A (en) * 1974-08-01 1976-03-09 Borg-Warner Corporation Load limiting system
US4061201A (en) * 1976-08-26 1977-12-06 J. I. Case Company Hydraulic system with dual pumps for tractor brake, steering, and loader valves
US4087968A (en) * 1977-04-28 1978-05-09 Caterpillar Tractor Co. Flow control valve for combining two dissimilar independent systems to a common pressure source
US4517800A (en) * 1980-10-31 1985-05-21 Kabushiki Kaisha Komatsu Seisakusho Hydraulic control system for off-highway self-propelled work machines
JPS599302A (ja) * 1982-07-05 1984-01-18 Toshiba Mach Co Ltd 油圧制御装置
DE3321483A1 (de) * 1983-06-14 1984-12-20 Linde Ag, 6200 Wiesbaden Hydraulische einrichtung mit einer pumpe und mindestens zwei von dieser beaufschlagten verbrauchern hydraulischer energie
IT1208866B (it) * 1987-04-14 1989-07-10 Chs Vickers Spa Circuito idraulico di comando per organi di lavoro di macchine movimento terra con circuito di sovrali mentazione
EP0438604B1 (de) * 1989-08-16 1997-02-05 Kabushiki Kaisha Komatsu Seisakusho Hydraulische schaltungsanordnung

Also Published As

Publication number Publication date
KR930702621A (ko) 1993-09-09
WO1993005301A1 (en) 1993-03-18
EP0559903A1 (de) 1993-09-15
DE69227760D1 (de) 1999-01-14
US5333449A (en) 1994-08-02
EP0559903B1 (de) 1998-12-02
JP3204975B2 (ja) 2001-09-04
EP0559903A4 (en) 1995-09-27
KR960000577B1 (ko) 1996-01-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee