DE3773683D1 - Hydraulisches geraet fuer baumaschinen. - Google Patents

Hydraulisches geraet fuer baumaschinen.

Info

Publication number
DE3773683D1
DE3773683D1 DE8888900588T DE3773683T DE3773683D1 DE 3773683 D1 DE3773683 D1 DE 3773683D1 DE 8888900588 T DE8888900588 T DE 8888900588T DE 3773683 T DE3773683 T DE 3773683T DE 3773683 D1 DE3773683 D1 DE 3773683D1
Authority
DE
Germany
Prior art keywords
hydraulic device
construction machinery
machinery
construction
hydraulic
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
DE8888900588T
Other languages
English (en)
Inventor
Kimio Nishida
Toshio Yokoyama
Yukio Moriya
Takeshi Kobayashi
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=12008488&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3773683(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Application granted granted Critical
Publication of DE3773683D1 publication Critical patent/DE3773683D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F04B49/065—Control using electricity and making use of computers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2203/00—Motor parameters
    • F04B2203/06—Motor parameters of internal combustion engines
    • F04B2203/0605—Rotational speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2205/00—Fluid parameters
    • F04B2205/05—Pressure after the pump outlet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Operation Control Of Excavators (AREA)
DE8888900588T 1987-01-30 1987-12-25 Hydraulisches geraet fuer baumaschinen. Expired - Fee Related DE3773683D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62019767A JP2511925B2 (ja) 1987-01-30 1987-01-30 建設機械のエンジン回転数制御装置
PCT/JP1987/001036 WO1988005869A1 (en) 1987-01-30 1987-12-25 Hydraulic apparatus for construction machines

Publications (1)

Publication Number Publication Date
DE3773683D1 true DE3773683D1 (de) 1991-11-14

Family

ID=12008488

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888900588T Expired - Fee Related DE3773683D1 (de) 1987-01-30 1987-12-25 Hydraulisches geraet fuer baumaschinen.

Country Status (5)

Country Link
US (1) US5197860A (de)
EP (1) EP0344311B1 (de)
JP (1) JP2511925B2 (de)
DE (1) DE3773683D1 (de)
WO (1) WO1988005869A1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2520771B2 (ja) * 1990-07-18 1996-07-31 株式会社小松製作所 積み込み作業車両の制御方法及び装置
EP0553348B1 (de) * 1990-10-16 1997-08-06 Hitachi Construction Machinery Co., Ltd. System zum regeln der motordrehzahl eines hydraulisch angetriebenen fahrzeuges
DE4308198C1 (de) * 1993-03-15 1994-07-28 Rexroth Mannesmann Gmbh Drehmomentregelung über Schwenkwinkel bzw. Exzentrizität bei hydrostatischen Maschinen mit axialer und radialer Kolbenanordnung
KR950019129A (ko) * 1993-12-30 1995-07-22 김무 유압식 건설기계의 엔진-펌프 제어장치 및 방법
US5515829A (en) * 1994-05-20 1996-05-14 Caterpillar Inc. Variable-displacement actuating fluid pump for a HEUI fuel system
US5711483A (en) * 1996-01-24 1998-01-27 Durotech Co. Liquid spraying system controller including governor for reduced overshoot
US6259220B1 (en) * 1996-09-19 2001-07-10 Durotech Co. Constant pressure liquid spraying system controller
US6551073B1 (en) * 2001-10-26 2003-04-22 W. S. Darley & Co. Mobile constant pressure pumping assembly
JP3855866B2 (ja) * 2001-12-26 2006-12-13 株式会社デンソー ハイブリッドコンプレッサ装置
US7726948B2 (en) * 2002-04-03 2010-06-01 Slw Automotive Inc. Hydraulic pump with variable flow and variable pressure and electric control
JP2004251267A (ja) * 2002-04-03 2004-09-09 Borgwarner Inc 可変容積ポンプ及びその制御システム
US6939110B2 (en) * 2002-11-06 2005-09-06 Clarke Engineering Technologies, Inc. Control system for I.C. engine driven blower
US20040098984A1 (en) * 2002-11-26 2004-05-27 Duell Charles A. Combination hydraulic system and electronically controlled vehicle and method of operating same
US20060245934A1 (en) * 2005-04-29 2006-11-02 Caterpillar Inc. System and method for controlling a fluid pump
US7788917B2 (en) 2007-02-28 2010-09-07 Caterpillar Inc Method and system for feedback pressure control
JP5046690B2 (ja) * 2007-03-12 2012-10-10 日立建機株式会社 作業車両の制御装置
US8080888B1 (en) * 2008-08-12 2011-12-20 Sauer-Danfoss Inc. Hydraulic generator drive system
DE102012025253A1 (de) * 2012-12-21 2014-07-10 Liebherr-Werk Ehingen Gmbh Verfahren zur Drehzahlnachführung eines Kranantriebs und Kranantrieb

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2247112A5 (de) * 1973-10-03 1975-05-02 Poclain Sa
JPS53122103A (en) * 1977-03-31 1978-10-25 Komatsu Ltd Liquid pressure equipment
GB2072890B (en) * 1979-10-15 1983-08-10 Hitachi Construction Machinery Method of controlling internal combustion engine and hydraulic pump system
JPS5680554A (en) * 1979-12-05 1981-07-01 Hitachi Constr Mach Co Ltd Limiting method of input to hydraulically driven system
US4364230A (en) * 1980-10-07 1982-12-21 J. I. Case Company Hydrostatic transmission overspeed prevention circuit
DE3243923C2 (de) * 1982-11-26 1985-12-19 Liebherr-Hydraulikbagger Gmbh, 7951 Kirchdorf Verfahren zur Steuerung der Drehzahl eines Dieselmotors in einem Hydraulikbagger
JPS60256528A (ja) * 1984-05-31 1985-12-18 Komatsu Ltd 油圧駆動機械のエンジン制御方法
JPS61265369A (ja) * 1985-05-17 1986-11-25 Komatsu Ltd 可変容量型油圧ポンプのカツトオフ制御装置
GB8515939D0 (en) * 1985-06-24 1985-07-24 Xerox Corp Restacking apparatus
WO1988001349A1 (en) * 1986-08-15 1988-02-25 Kabushiki Kaisha Komatsu Seisakusho Hydraulic pump control unit

Also Published As

Publication number Publication date
JP2511925B2 (ja) 1996-07-03
WO1988005869A1 (en) 1988-08-11
EP0344311B1 (de) 1991-10-09
EP0344311A4 (de) 1990-03-12
EP0344311A1 (de) 1989-12-06
US5197860A (en) 1993-03-30
JPS63186978A (ja) 1988-08-02

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8339 Ceased/non-payment of the annual fee