DE19729167A1 - Hydrauliksystem für Fahrlader - Google Patents

Hydrauliksystem für Fahrlader

Info

Publication number
DE19729167A1
DE19729167A1 DE19729167A DE19729167A DE19729167A1 DE 19729167 A1 DE19729167 A1 DE 19729167A1 DE 19729167 A DE19729167 A DE 19729167A DE 19729167 A DE19729167 A DE 19729167A DE 19729167 A1 DE19729167 A1 DE 19729167A1
Authority
DE
Germany
Prior art keywords
oil
channel
branch
main
pressure
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.)
Withdrawn
Application number
DE19729167A
Other languages
German (de)
English (en)
Inventor
D Li Anatoli
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.)
Samsung Heavy Industries Co Ltd
Original Assignee
Samsung Heavy Industries 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 Samsung Heavy Industries Co Ltd filed Critical Samsung Heavy Industries Co Ltd
Publication of DE19729167A1 publication Critical patent/DE19729167A1/de
Withdrawn legal-status Critical Current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
    • E02F9/2296—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
    • F15B11/044—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the return line, i.e. "meter out"
    • 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
    • E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
    • 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
    • E02F9/2282—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
    • E02F9/2285—Pilot-operated systems

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)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
DE19729167A 1996-07-10 1997-07-08 Hydrauliksystem für Fahrlader Withdrawn DE19729167A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960027837A KR100205568B1 (ko) 1996-07-10 1996-07-10 로우더의 유압장치

Publications (1)

Publication Number Publication Date
DE19729167A1 true DE19729167A1 (de) 1998-01-15

Family

ID=19465927

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19729167A Withdrawn DE19729167A1 (de) 1996-07-10 1997-07-08 Hydrauliksystem für Fahrlader

Country Status (5)

Country Link
JP (1) JPH1082368A (ko)
KR (1) KR100205568B1 (ko)
CN (1) CN1170831A (ko)
DE (1) DE19729167A1 (ko)
GB (1) GB2315102A (ko)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4209705B2 (ja) * 2003-03-17 2009-01-14 日立建機株式会社 作業機の油圧回路
DE102008015729A1 (de) * 2007-12-28 2009-07-02 Robert Bosch Gmbh Regeneratives hydrostatisches Antriebssystem
US9309899B2 (en) 2010-06-30 2016-04-12 Volvo Construction Equipment Ab Control device for a hydraulic pump of construction machinery
CN102384115A (zh) * 2011-11-14 2012-03-21 上海电气液压气动有限公司 书籍压槽液压装置
CN102635144B (zh) * 2012-05-04 2014-06-11 山东理工大学 装载机液压***
CN103206421B (zh) * 2013-04-16 2015-08-12 三一重机有限公司 装载机及其液压***
WO2020132934A1 (zh) * 2018-12-26 2020-07-02 潍柴动力股份有限公司 液压变量泵组及挖掘机
CN113757203B (zh) * 2021-09-13 2022-04-15 徐工集团工程机械股份有限公司科技分公司 一种装载机电控液压***及装载机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1311188A (en) * 1970-06-18 1973-03-21 Wilkins B C Hydrostatic power transmission system
US3754400A (en) * 1972-04-20 1973-08-28 Deere & Co Variable pressure hydraulic system
FR2259256B1 (ko) * 1974-01-24 1977-06-10 Yumbo
DE3817218A1 (de) * 1987-06-11 1988-12-22 Mannesmann Ag Hydraulisches steuersystem fuer einen hydraulikbagger
JPH04210101A (ja) * 1990-11-30 1992-07-31 Komatsu Ltd 油圧回路
US5446979A (en) * 1992-04-20 1995-09-05 Hitachi Construction Machinery Co., Ltd. Hydraulic circuit system for civil engineering and construction machines

Also Published As

Publication number Publication date
GB2315102A (en) 1998-01-21
GB9714578D0 (en) 1997-09-17
CN1170831A (zh) 1998-01-21
KR100205568B1 (ko) 1999-07-01
KR980009964A (ko) 1998-04-30
JPH1082368A (ja) 1998-03-31

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee