KR100205568B1 - 로우더의 유압장치 - Google Patents

로우더의 유압장치 Download PDF

Info

Publication number
KR100205568B1
KR100205568B1 KR1019960027837A KR19960027837A KR100205568B1 KR 100205568 B1 KR100205568 B1 KR 100205568B1 KR 1019960027837 A KR1019960027837 A KR 1019960027837A KR 19960027837 A KR19960027837 A KR 19960027837A KR 100205568 B1 KR100205568 B1 KR 100205568B1
Authority
KR
South Korea
Prior art keywords
flow path
pump
loader
hydraulic
elastic member
Prior art date
Application number
KR1019960027837A
Other languages
English (en)
Korean (ko)
Other versions
KR980009964A (ko
Inventor
디. 리 아나톨리.
Original Assignee
토니헬샴
볼보건설기계코리아주식회사
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 토니헬샴, 볼보건설기계코리아주식회사 filed Critical 토니헬샴
Priority to KR1019960027837A priority Critical patent/KR100205568B1/ko
Priority to DE19729167A priority patent/DE19729167A1/de
Priority to GB9714578A priority patent/GB2315102A/en
Priority to CN97112245A priority patent/CN1170831A/zh
Priority to JP9200939A priority patent/JPH1082368A/ja
Publication of KR980009964A publication Critical patent/KR980009964A/ko
Application granted granted Critical
Publication of KR100205568B1 publication Critical patent/KR100205568B1/ko

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)
KR1019960027837A 1996-07-10 1996-07-10 로우더의 유압장치 KR100205568B1 (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1019960027837A KR100205568B1 (ko) 1996-07-10 1996-07-10 로우더의 유압장치
DE19729167A DE19729167A1 (de) 1996-07-10 1997-07-08 Hydrauliksystem für Fahrlader
GB9714578A GB2315102A (en) 1996-07-10 1997-07-10 Hydraulic system for power loaders
CN97112245A CN1170831A (zh) 1996-07-10 1997-07-10 动力装载机的液压***
JP9200939A JPH1082368A (ja) 1996-07-10 1997-07-10 ローダの油圧装置

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
KR980009964A KR980009964A (ko) 1998-04-30
KR100205568B1 true KR100205568B1 (ko) 1999-07-01

Family

ID=19465927

Family Applications (1)

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

Country Status (5)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012002589A1 (ko) * 2010-06-30 2012-01-05 볼보 컨스트럭션 이큅먼트 에이비 건설기계의 유압펌프 제어장치

Families Citing this family (7)

* 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
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***
US11280357B1 (en) * 2018-12-26 2022-03-22 Linde Hydraulics (China) Co., Ltd. Hydraulic variable pump set and excavator
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 (zh) * 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
WO1993021395A1 (en) * 1992-04-20 1993-10-28 Hitachi Construction Machinery Co., Ltd. Hydraulic circuit device for construction machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012002589A1 (ko) * 2010-06-30 2012-01-05 볼보 컨스트럭션 이큅먼트 에이비 건설기계의 유압펌프 제어장치
CN102985704A (zh) * 2010-06-30 2013-03-20 沃尔沃建造设备有限公司 用于施工机械液压泵的控制装置
US9309899B2 (en) 2010-06-30 2016-04-12 Volvo Construction Equipment Ab Control device for a hydraulic pump of construction machinery

Also Published As

Publication number Publication date
JPH1082368A (ja) 1998-03-31
DE19729167A1 (de) 1998-01-15
KR980009964A (ko) 1998-04-30
GB9714578D0 (en) 1997-09-17
CN1170831A (zh) 1998-01-21
GB2315102A (en) 1998-01-21

Similar Documents

Publication Publication Date Title
US9080310B2 (en) Closed-loop hydraulic system having regeneration configuration
US5209063A (en) Hydraulic circuit utilizing a compensator pressure selecting value
KR100665358B1 (ko) 이동형 조종 장치
US20080238187A1 (en) Hydrostatic drive system with variable charge pump
US6715403B2 (en) Independent and regenerative mode fluid control system
KR100305742B1 (ko) 중장비의재생장치
GB2313413A (en) Variable-regeneration directional control valve for constructional vehicles
KR20020006607A (ko) 유압구동기계의 액추에이터 제어장치
KR100621983B1 (ko) 중장비용 가변 재생밸브
KR100205568B1 (ko) 로우더의 유압장치
CN112703324B (zh) 流体回路
US5188147A (en) Pressure compensating type hydraulic valve
US6612109B2 (en) Hydraulic power boost system for a work vehicle
CN109487838B (zh) 液压回路
KR20080060512A (ko) 지게차의 유압시스템
KR19980071130A (ko) 해제기구 및 해제 기구를 구비한 유압 회로
EP0913586A1 (en) Hydraulic oil supply apparatus
JP4836350B2 (ja) 油圧制御装置
JP3155243B2 (ja) 再生機能を有する油圧制御装置
KR100240265B1 (ko) 작동유온도및캐비테이션발생을고려한건설중장비용유압장치
EP0433454B1 (en) Hydraulic circuit apparatus
US11313104B2 (en) Control system for construction machinery
KR100540445B1 (ko) 건설기계의 주행진동 제어장치
US4502235A (en) Control system for push-pull unit mounted on motor scraper
KR200151462Y1 (ko) 휠로다의 동력절감장치

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
N231 Notification of change of applicant
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20020311

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee