GB9714578D0 - Hydraulic system for power loaders - Google Patents

Hydraulic system for power loaders

Info

Publication number
GB9714578D0
GB9714578D0 GBGB9714578.3A GB9714578A GB9714578D0 GB 9714578 D0 GB9714578 D0 GB 9714578D0 GB 9714578 A GB9714578 A GB 9714578A GB 9714578 D0 GB9714578 D0 GB 9714578D0
Authority
GB
United Kingdom
Prior art keywords
hydraulic system
power loaders
loaders
power
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.)
Withdrawn
Application number
GBGB9714578.3A
Other versions
GB2315102A (en
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 GB9714578D0 publication Critical patent/GB9714578D0/en
Publication of GB2315102A publication Critical patent/GB2315102A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2296—Systems with a variable displacement pump
    • 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)
GB9714578A 1996-07-10 1997-07-10 Hydraulic system for power loaders Withdrawn GB2315102A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960027837A KR100205568B1 (en) 1996-07-10 1996-07-10 Hydraulic device of loader

Publications (2)

Publication Number Publication Date
GB9714578D0 true GB9714578D0 (en) 1997-09-17
GB2315102A GB2315102A (en) 1998-01-21

Family

ID=19465927

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9714578A Withdrawn GB2315102A (en) 1996-07-10 1997-07-10 Hydraulic system for power loaders

Country Status (5)

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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4209705B2 (en) * 2003-03-17 2009-01-14 日立建機株式会社 Working machine hydraulic circuit
DE102008015729A1 (en) * 2007-12-28 2009-07-02 Robert Bosch Gmbh Regenerative hydrostatic drive system
US9309899B2 (en) 2010-06-30 2016-04-12 Volvo Construction Equipment Ab Control device for a hydraulic pump of construction machinery
CN102384115A (en) * 2011-11-14 2012-03-21 上海电气液压气动有限公司 Book pressing hydraulic device
CN102635144B (en) * 2012-05-04 2014-06-11 山东理工大学 Hydraulic system for loader
CN103206421B (en) * 2013-04-16 2015-08-12 三一重机有限公司 Loader and hydraulic system thereof
WO2020132934A1 (en) * 2018-12-26 2020-07-02 潍柴动力股份有限公司 Hydraulic variable pump set and excavator
CN113757203B (en) * 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 Loader electric control hydraulic system and loader

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 (en) * 1974-01-24 1977-06-10 Yumbo
DE3817218A1 (en) * 1987-06-11 1988-12-22 Mannesmann Ag HYDRAULIC CONTROL SYSTEM FOR A HYDRAULIC EXCAVATOR
JPH04210101A (en) * 1990-11-30 1992-07-31 Komatsu Ltd Oil-hydraulic circuit
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
DE19729167A1 (en) 1998-01-15
CN1170831A (en) 1998-01-21
KR100205568B1 (en) 1999-07-01
KR980009964A (en) 1998-04-30
JPH1082368A (en) 1998-03-31

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)