DE69802144D1 - Hydraulisches Betätigungssystem für Baumaschinen - Google Patents

Hydraulisches Betätigungssystem für Baumaschinen

Info

Publication number
DE69802144D1
DE69802144D1 DE69802144T DE69802144T DE69802144D1 DE 69802144 D1 DE69802144 D1 DE 69802144D1 DE 69802144 T DE69802144 T DE 69802144T DE 69802144 T DE69802144 T DE 69802144T DE 69802144 D1 DE69802144 D1 DE 69802144D1
Authority
DE
Germany
Prior art keywords
actuation system
construction machines
hydraulic actuation
hydraulic
machines
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
DE69802144T
Other languages
English (en)
Other versions
DE69802144T2 (de
Inventor
Ei Takahashi
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
Application filed by Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Publication of DE69802144D1 publication Critical patent/DE69802144D1/de
Application granted granted Critical
Publication of DE69802144T2 publication Critical patent/DE69802144T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2292—Systems with two or more 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
    • 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
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • 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
    • E02F9/2296—Systems with a variable displacement pump

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
DE69802144T 1997-06-23 1998-06-19 Hydraulisches Betätigungssystem für Baumaschinen Expired - Fee Related DE69802144T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9166034A JPH1113091A (ja) 1997-06-23 1997-06-23 建設機械の油圧駆動装置

Publications (2)

Publication Number Publication Date
DE69802144D1 true DE69802144D1 (de) 2001-11-29
DE69802144T2 DE69802144T2 (de) 2002-07-04

Family

ID=15823727

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69802144T Expired - Fee Related DE69802144T2 (de) 1997-06-23 1998-06-19 Hydraulisches Betätigungssystem für Baumaschinen

Country Status (6)

Country Link
US (1) US6164069A (de)
EP (1) EP0887476B1 (de)
JP (1) JPH1113091A (de)
KR (1) KR100259576B1 (de)
CN (1) CN1075580C (de)
DE (1) DE69802144T2 (de)

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US8795332B2 (en) 2002-09-30 2014-08-05 Ethicon, Inc. Barbed sutures
US5931855A (en) 1997-05-21 1999-08-03 Frank Hoffman Surgical methods using one-way suture
AT3018U1 (de) * 1998-06-12 1999-08-25 Weber Hydraulik Gmbh Regelvorrichtung für hydraulische arbeitsgeräte
US6773450B2 (en) 2002-08-09 2004-08-10 Quill Medical, Inc. Suture anchor and method
US8100940B2 (en) 2002-09-30 2012-01-24 Quill Medical, Inc. Barb configurations for barbed sutures
US7422215B2 (en) 2003-10-08 2008-09-09 Seven Generations, Inc. Biased card deal
NZ588140A (en) 2004-05-14 2012-05-25 Quill Medical Inc Suture methods and device using an enlongated body with cut barbs and a needle at one end and a loop at the other
US7427092B2 (en) * 2005-03-04 2008-09-23 Actuant Corporation Hydraulic synchronization of slide-out for recreational vehicle
US20070241502A1 (en) * 2006-04-14 2007-10-18 Campbell Darrell C Poker game and apparatus for play thereof
US7584968B2 (en) * 2006-04-14 2009-09-08 Seven Generations, Inc. Poker game and apparatus for play thereof
US20090090102A1 (en) * 2006-05-03 2009-04-09 Wilfred Busse Method of reducing the load of one or more engines in a large hydraulic excavator
US8915943B2 (en) 2007-04-13 2014-12-23 Ethicon, Inc. Self-retaining systems for surgical procedures
EP2550978B1 (de) 2007-09-27 2014-04-30 Ethicon, LLC Vorrichtung zum Scheiden von Widerhaken auf einer Naht
US8916077B1 (en) 2007-12-19 2014-12-23 Ethicon, Inc. Self-retaining sutures with retainers formed from molten material
US8118834B1 (en) 2007-12-20 2012-02-21 Angiotech Pharmaceuticals, Inc. Composite self-retaining sutures and method
BRPI0907787B8 (pt) 2008-02-21 2021-06-22 Angiotech Pharm Inc método para formar uma sutura de autorretenção e aparelho para elevar os retentores em um fio de sutura a um ângulo desejado
WO2009129251A2 (en) 2008-04-15 2009-10-22 Angiotech Pharmaceuticals, Inc. Self-retaining sutures with bi-directional retainers or uni-directional retainers
US8932328B2 (en) 2008-11-03 2015-01-13 Ethicon, Inc. Length of self-retaining suture and method and device for using the same
US20100122528A1 (en) * 2008-11-19 2010-05-20 Beschorner Matthew J Hydraulic system having regeneration and supplemental flow
US20110056194A1 (en) * 2009-09-10 2011-03-10 Bucyrus International, Inc. Hydraulic system for heavy equipment
US20110056192A1 (en) * 2009-09-10 2011-03-10 Robert Weber Technique for controlling pumps in a hydraulic system
WO2011090628A2 (en) 2009-12-29 2011-07-28 Angiotech Pharmaceuticals, Inc. Bidirectional self-retaining sutures with laser-marked and/or non-laser marked indicia and methods
JP5079827B2 (ja) * 2010-02-10 2012-11-21 日立建機株式会社 油圧ショベルの油圧駆動装置
US20130180966A1 (en) 2010-05-04 2013-07-18 Jeffrey M. Gross Laser cutting system and methods for creating self-retaining sutures
MX337815B (es) 2010-06-11 2016-03-18 Ethicon Llc Herramientas para dispensar suturas para cirugía endoscópica y asistida por robot y métodos.
US8626403B2 (en) 2010-10-06 2014-01-07 Caterpillar Global Mining Llc Energy management and storage system
US8606451B2 (en) 2010-10-06 2013-12-10 Caterpillar Global Mining Llc Energy system for heavy equipment
US8718845B2 (en) 2010-10-06 2014-05-06 Caterpillar Global Mining Llc Energy management system for heavy equipment
MX2013005072A (es) 2010-11-03 2013-12-02 Tissuegen Inc Hilos de sutura de autorretención eluyentes de fármacos y métodos relacionados con estos.
WO2012064902A2 (en) 2010-11-09 2012-05-18 Angiotech Pharmaceuticals, Inc. Emergency self-retaining sutures and packaging
WO2012129534A2 (en) 2011-03-23 2012-09-27 Angiotech Pharmaceuticals, Inc. Self-retaining variable loop sutures
US20130172931A1 (en) 2011-06-06 2013-07-04 Jeffrey M. Gross Methods and devices for soft palate tissue elevation procedures
EP2853753A4 (de) * 2012-05-21 2016-05-25 Volvo Constr Equip Ab Hydraulisches system für eine baumaschine
US9190852B2 (en) 2012-09-21 2015-11-17 Caterpillar Global Mining Llc Systems and methods for stabilizing power rate of change within generator based applications
JP6226851B2 (ja) * 2014-11-06 2017-11-08 日立建機株式会社 作業機械の油圧制御装置

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Publication number Priority date Publication date Assignee Title
DE2138986C3 (de) * 1971-08-04 1978-09-07 G.L. Rexroth Gmbh, 8770 Lohr Steuerventileinrichtung für mehrere hydraulische Antriebe
US4142445A (en) * 1977-03-17 1979-03-06 Caterpillar Tractor Co. Crossover plural circuit fluid system
US4561824A (en) * 1981-03-03 1985-12-31 Hitachi, Ltd. Hydraulic drive system for civil engineering and construction machinery
KR870000506B1 (ko) * 1981-05-02 1987-03-12 니시모도 후미히라(西元文平) 토목 건설기계의 유압회로 시스템
JPS57190845A (en) * 1981-05-18 1982-11-24 Kobe Steel Ltd Hydraulic circuit for hydraulic shovel
JPS57197336A (en) * 1981-05-29 1982-12-03 Komatsu Ltd Oil-pressure circuit for turning excavator
JPS5810960U (ja) * 1981-07-10 1983-01-24 日立建機株式会社 油圧ショベルの油圧回路
JPS60199129A (ja) * 1984-03-21 1985-10-08 Kayaba Ind Co Ltd 建設車両の制御回路
JPH076530B2 (ja) * 1986-09-27 1995-01-30 日立建機株式会社 油圧ショベルの油圧回路
JPH0215650A (ja) * 1988-07-01 1990-01-19 Nec Corp 半導体装置及びその製造方法
JPH07116721B2 (ja) * 1989-01-31 1995-12-13 油谷重工株式会社 油圧ショベルの油圧回路
JP2892939B2 (ja) * 1994-06-28 1999-05-17 日立建機株式会社 油圧掘削機の油圧回路装置
JP3013225B2 (ja) * 1995-01-11 2000-02-28 新キャタピラー三菱株式会社 吊り作業制御装置

Also Published As

Publication number Publication date
KR19990007196A (ko) 1999-01-25
CN1075580C (zh) 2001-11-28
DE69802144T2 (de) 2002-07-04
US6164069A (en) 2000-12-26
CN1203298A (zh) 1998-12-30
EP0887476A1 (de) 1998-12-30
JPH1113091A (ja) 1999-01-19
KR100259576B1 (ko) 2000-06-15
EP0887476B1 (de) 2001-10-24

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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