DE69802144T2 - Hydraulisches Betätigungssystem für Baumaschinen - Google Patents

Hydraulisches Betätigungssystem für Baumaschinen

Info

Publication number
DE69802144T2
DE69802144T2 DE69802144T DE69802144T DE69802144T2 DE 69802144 T2 DE69802144 T2 DE 69802144T2 DE 69802144 T DE69802144 T DE 69802144T DE 69802144 T DE69802144 T DE 69802144T DE 69802144 T2 DE69802144 T2 DE 69802144T2
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
DE69802144D1 (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
Application granted granted Critical
Publication of DE69802144D1 publication Critical patent/DE69802144D1/de
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
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 DE69802144D1 (de) 2001-11-29
DE69802144T2 true 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
SG164370A1 (en) 2004-05-14 2010-09-29 Quill Medical Inc Suture methods and devices
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
US20080255612A1 (en) 2007-04-13 2008-10-16 Angiotech Pharmaceuticals, Inc. Self-retaining systems for surgical procedures
WO2009042841A2 (en) 2007-09-27 2009-04-02 Angiotech Pharmaceuticals, Inc. Self-retaining sutures including tissue retainers having improved strength
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
EP2249712B8 (de) 2008-02-21 2018-12-26 Ethicon LLC Verfahren und gerät zur anhebung von halteelementen an selbsttragenden nähten
CN102056552B (zh) 2008-04-15 2013-07-03 伊西康有限责任公司 具有双向保持器或单向保持器的自保持缝合线
MX339174B (es) 2008-11-03 2016-05-12 Ethicon Llc Longitud de sutura autorretenible y metodo y dispositivo para su uso.
US20100122528A1 (en) * 2008-11-19 2010-05-20 Beschorner Matthew J Hydraulic system having regeneration and supplemental flow
US20110056192A1 (en) * 2009-09-10 2011-03-10 Robert Weber Technique for controlling pumps in a hydraulic system
US20110056194A1 (en) * 2009-09-10 2011-03-10 Bucyrus International, Inc. Hydraulic system for heavy equipment
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
CA2798373C (en) 2010-05-04 2018-10-23 Ethicon, Llc Self-retaining systems having laser-cut retainers
EP3155978B1 (de) 2010-06-11 2022-04-13 Cilag GmbH International Nahtausgabewerkzeug für endoskopische und robotergestützte chirurgie
US8606451B2 (en) 2010-10-06 2013-12-10 Caterpillar Global Mining Llc Energy system for heavy equipment
US8626403B2 (en) 2010-10-06 2014-01-07 Caterpillar Global Mining Llc Energy management and storage system
US8718845B2 (en) 2010-10-06 2014-05-06 Caterpillar Global Mining Llc Energy management system for heavy equipment
WO2012061658A2 (en) 2010-11-03 2012-05-10 Angiotech Pharmaceuticals, Inc. Drug-eluting self-retaining sutures and methods relating thereto
US9675341B2 (en) 2010-11-09 2017-06-13 Ethicon Inc. Emergency self-retaining sutures and packaging
JP6125488B2 (ja) 2011-03-23 2017-05-10 エシコン・エルエルシーＥｔｈｉｃｏｎ ＬＬＣ 自己保持可変ループ縫合材
US20130172931A1 (en) 2011-06-06 2013-07-04 Jeffrey M. Gross Methods and devices for soft palate tissue elevation procedures
US9765504B2 (en) 2012-05-21 2017-09-19 Volvo Construction Equipment Ab Hydraulic system for construction machinery
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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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
DE3216249C2 (de) * 1981-05-02 1986-08-21 Hitachi Construction Machinery Co. Ltd., Tokio/Tokyo Hydrauliksystem für Hoch- und Tiefbaumaschinen
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
EP0887476B1 (de) 2001-10-24
CN1075580C (zh) 2001-11-28
KR19990007196A (ko) 1999-01-25
KR100259576B1 (ko) 2000-06-15
EP0887476A1 (de) 1998-12-30
JPH1113091A (ja) 1999-01-19
DE69802144D1 (de) 2001-11-29
CN1203298A (zh) 1998-12-30
US6164069A (en) 2000-12-26

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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