WO2009145582A3 - 산업용 유압기기의 연료 절감 장치 - Google Patents

산업용 유압기기의 연료 절감 장치 Download PDF

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Publication number
WO2009145582A3
WO2009145582A3 PCT/KR2009/002859 KR2009002859W WO2009145582A3 WO 2009145582 A3 WO2009145582 A3 WO 2009145582A3 KR 2009002859 W KR2009002859 W KR 2009002859W WO 2009145582 A3 WO2009145582 A3 WO 2009145582A3
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic
pump
pressure
fuel
fluid
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.)
Ceased
Application number
PCT/KR2009/002859
Other languages
English (en)
French (fr)
Other versions
WO2009145582A2 (ko
Inventor
임창후
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.)
Individual
Original Assignee
Individual
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
Priority claimed from KR2020080007160U external-priority patent/KR20080001986U/ko
Application filed by Individual filed Critical Individual
Publication of WO2009145582A2 publication Critical patent/WO2009145582A2/ko
Publication of WO2009145582A3 publication Critical patent/WO2009145582A3/ko
Anticipated expiration legal-status Critical
Ceased 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
    • E02F9/2246—Control of prime movers, e.g. depending on the hydraulic load of work tools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/04—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure using fluid, other than fuel, for injection-valve actuation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

본 발명은 유압기기의 연료 공급을 위한 인젝션펌프의 작동을 위한 유압실린더와, 유압실린더에 공급되어진 유체(기름)의 배출경로상에 구비되어 유압실린더내의 유압을 조정하는 스로틀밸브와, 스로틀밸브의 유체 배출경로상에 구비되어 있으며 해당 회수유로를 차단 또는 개방하는 릴리프밸브와, 유압실린더로 일정압력의 유체를 공급하기 위한 유압펌프, 및 유압펌프에서 유압실린더측으로 공급하는 유체의 전달 경로 상에 위치하며 유체 공급 유로를 차단 또는 개방하는 솔레노이드밸브를 구비하는 산업용 유압기기에 관한 것으로 특히, 유압펌프는 메인펌프와 보조펌프로 구성하며, 보조펌프가 솔레노이드밸브를 통해 유압실린더측에 일정 압력의 유체를 공급하도록 하되; 입력되는 전압의 상태에 따라 솔레노이드밸브의 개방정도를 조절하는 릴레이와; 메인펌프의 동작에 따른 압력의 변화와 크기를 감지하는 압력센서와; 압력센서의 감지신호를 입력받아 감지신호의 크기에 따라 선형적으로 산업용 유압기기의 내부 배터리에서 공급되는 전원을 릴레이 측에 공급하는 인디게이터를 포함하는 것을 특징으로 하는 산업용 유압기기의 연료 절감 장치를 제공하여 작업장치의 압력변화에 맞추어 엔진출력을 높임과 낮춤을 반복함과 동시에 유압펌프의 압력상태가 저압일 경우와 고압일 경우에 맞추어 엔진의 분사량을 함께 조절함으로써 전체적으로 소모되는 연료를 절약하게 된다.
PCT/KR2009/002859 2008-05-31 2009-05-29 산업용 유압기기의 연료 절감 장치 Ceased WO2009145582A2 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20-2008-0007160 2008-05-31
KR2020080007160U KR20080001986U (ko) 2008-05-31 2008-05-31 굴삭기의 연료 절약장치
KR10-2008-0074359 2008-07-30
KR1020080074359A KR20090124885A (ko) 2008-05-31 2008-07-30 산업용 유압기기의 연료 절감 장치

Publications (2)

Publication Number Publication Date
WO2009145582A2 WO2009145582A2 (ko) 2009-12-03
WO2009145582A3 true WO2009145582A3 (ko) 2010-04-22

Family

ID=41377804

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/002859 Ceased WO2009145582A2 (ko) 2008-05-31 2009-05-29 산업용 유압기기의 연료 절감 장치

Country Status (1)

Country Link
WO (1) WO2009145582A2 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102852185B (zh) * 2012-08-31 2015-08-19 徐州徐工挖掘机械有限公司 一种可调节复合动作协调性的液压挖掘机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6131632A (ja) * 1984-07-23 1986-02-14 Komatsu Ltd 変速シヨツク防止装置
JPH0711986A (ja) * 1993-06-23 1995-01-13 Komatsu Ltd アクセルペダルの自動制御方法
JPH10281112A (ja) * 1997-04-09 1998-10-20 Shin Caterpillar Mitsubishi Ltd 流体制御方法およびその装置
KR100221596B1 (ko) * 1997-10-21 1999-09-15 토니헬샴 유압식 건설기계의 유압력 제어장치 및 엔진 회전수-펌프 제어 방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6131632A (ja) * 1984-07-23 1986-02-14 Komatsu Ltd 変速シヨツク防止装置
JPH0711986A (ja) * 1993-06-23 1995-01-13 Komatsu Ltd アクセルペダルの自動制御方法
JPH10281112A (ja) * 1997-04-09 1998-10-20 Shin Caterpillar Mitsubishi Ltd 流体制御方法およびその装置
KR100221596B1 (ko) * 1997-10-21 1999-09-15 토니헬샴 유압식 건설기계의 유압력 제어장치 및 엔진 회전수-펌프 제어 방법

Also Published As

Publication number Publication date
WO2009145582A2 (ko) 2009-12-03

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