CN100562677C - 油压行驶车辆的气蚀防止系统 - Google Patents

油压行驶车辆的气蚀防止系统 Download PDF

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Publication number
CN100562677C
CN100562677C CNB2003101180520A CN200310118052A CN100562677C CN 100562677 C CN100562677 C CN 100562677C CN B2003101180520 A CNB2003101180520 A CN B2003101180520A CN 200310118052 A CN200310118052 A CN 200310118052A CN 100562677 C CN100562677 C CN 100562677C
Authority
CN
China
Prior art keywords
oil
oil pressure
pressure pump
interflow
travels
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
CNB2003101180520A
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English (en)
Chinese (zh)
Other versions
CN1509916A (zh
Inventor
源司雅明
埃里克·雅克
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Publication of CN1509916A publication Critical patent/CN1509916A/zh
Application granted granted Critical
Publication of CN100562677C publication Critical patent/CN100562677C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4183—Preventing or reducing vibrations or noise, e.g. avoiding cavitations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/44—Control of exclusively fluid gearing hydrostatic with more than one pump or motor in operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4061—Control related to directional control valves, e.g. change-over valves, for crossing the feeding conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/44—Control of exclusively fluid gearing hydrostatic with more than one pump or motor in operation
    • F16H61/448—Control circuits for tandem pumps or motors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Fluid Gearings (AREA)
  • Motor Power Transmission Devices (AREA)
  • Operation Control Of Excavators (AREA)
CNB2003101180520A 2002-11-27 2003-11-24 油压行驶车辆的气蚀防止系统 Expired - Fee Related CN100562677C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0227637A GB2395769C (en) 2002-11-27 2002-11-27 Cavitation prevention system of hydraulic travelling vehicle
GB0227637.6 2002-11-27

Publications (2)

Publication Number Publication Date
CN1509916A CN1509916A (zh) 2004-07-07
CN100562677C true CN100562677C (zh) 2009-11-25

Family

ID=9948591

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2003101180520A Expired - Fee Related CN100562677C (zh) 2002-11-27 2003-11-24 油压行驶车辆的气蚀防止系统

Country Status (4)

Country Link
JP (1) JP4190397B2 (enExample)
CN (1) CN100562677C (enExample)
DE (1) DE10354193B4 (enExample)
GB (1) GB2395769C (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100419311C (zh) * 2002-12-27 2008-09-17 日立建机株式会社 液压驱动的车辆
EP1967745A4 (en) * 2005-12-27 2016-04-20 Hitachi Construction Machinery PUMP CONTROL DEVICE FOR HYDRAULIC WORK MACHINE, PUMP CONTROL METHOD AND CONSTRUCTION MACHINE
JP2011075045A (ja) * 2009-09-30 2011-04-14 Hitachi Constr Mach Co Ltd 油圧作業機械の油圧制御装置
EP2466017A1 (en) * 2010-12-14 2012-06-20 Caterpillar, Inc. Closed loop drive circuit with open circuit pump assist for high speed travel
CN104141643B (zh) * 2013-05-10 2018-10-30 林德液压两合公司 带有用于驱动变速器的静液压传动机构的驱动系

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE792617A (fr) * 1971-12-13 1973-06-12 Caterpillar Tractor Co Circuit hydraulique pour un excavateur.
DE4407282C2 (de) * 1994-03-04 1996-04-18 Hydromatik Gmbh Hydrostatischer Antrieb
JPH11218102A (ja) * 1997-11-11 1999-08-10 Komatsu Ltd 圧油供給装置

Also Published As

Publication number Publication date
DE10354193A1 (de) 2004-06-17
DE10354193B4 (de) 2007-06-06
CN1509916A (zh) 2004-07-07
JP4190397B2 (ja) 2008-12-03
JP2004176920A (ja) 2004-06-24
GB2395769B (en) 2006-02-08
GB0227637D0 (en) 2003-01-08
GB2395769A (en) 2004-06-02
GB2395769C (en) 2006-02-08

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Legal Events

Date Code Title Description
C53 Correction of patent of invention or patent application
COR Change of bibliographic data

Free format text: CORRECT: APPLICANT; FROM: BRITISH KOMATSU CO. LTD. TO: KOMATSU MFG CO., LTD.

CP02 Change in the address of a patent holder

Address after: Tokyo, Japan, Japan

Applicant after: Komatsu Mfg Co., Ltd.

Address before: Durham, England

Applicant before: British Komatsu Co. Ltd.

C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091125

Termination date: 20161124