FR2694604B1 - HYDRAULIC CIRCUIT STRUCTURE FOR A BACKHOE. - Google Patents

HYDRAULIC CIRCUIT STRUCTURE FOR A BACKHOE.

Info

Publication number
FR2694604B1
FR2694604B1 FR9309731A FR9309731A FR2694604B1 FR 2694604 B1 FR2694604 B1 FR 2694604B1 FR 9309731 A FR9309731 A FR 9309731A FR 9309731 A FR9309731 A FR 9309731A FR 2694604 B1 FR2694604 B1 FR 2694604B1
Authority
FR
France
Prior art keywords
backhoe
circuit structure
hydraulic circuit
hydraulic
circuit
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
FR9309731A
Other languages
French (fr)
Other versions
FR2694604A1 (en
Inventor
Shizuo Shimoie
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Publication of FR2694604A1 publication Critical patent/FR2694604A1/en
Application granted granted Critical
Publication of FR2694604B1 publication Critical patent/FR2694604B1/en
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
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/26—Locking mechanisms
    • 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
    • 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
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/005—Leakage; Spillage; Hose burst

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Operation Control Of Excavators (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Fluid-Pressure Circuits (AREA)
FR9309731A 1992-08-07 1993-08-06 HYDRAULIC CIRCUIT STRUCTURE FOR A BACKHOE. Expired - Fee Related FR2694604B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4211049A JP2702646B2 (en) 1992-08-07 1992-08-07 Hydraulic circuit structure of backhoe device

Publications (2)

Publication Number Publication Date
FR2694604A1 FR2694604A1 (en) 1994-02-11
FR2694604B1 true FR2694604B1 (en) 1995-11-24

Family

ID=16599540

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9309731A Expired - Fee Related FR2694604B1 (en) 1992-08-07 1993-08-06 HYDRAULIC CIRCUIT STRUCTURE FOR A BACKHOE.

Country Status (5)

Country Link
JP (1) JP2702646B2 (en)
KR (1) KR970000247B1 (en)
DE (1) DE4324129C2 (en)
FR (1) FR2694604B1 (en)
GB (1) GB2269425B (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69824066T2 (en) * 1997-03-21 2005-05-25 Kabushiki Kaisha Toyota Jidoshokki, Kariya Hydraulic control unit for industrial trucks
JP3339821B2 (en) * 1998-06-29 2002-10-28 新キャタピラー三菱株式会社 Work machine locking method and locking device
KR100559289B1 (en) * 2002-06-14 2006-03-15 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 hydraulic circuit of having float function
US8966892B2 (en) 2011-08-31 2015-03-03 Caterpillar Inc. Meterless hydraulic system having restricted primary makeup
US8863509B2 (en) 2011-08-31 2014-10-21 Caterpillar Inc. Meterless hydraulic system having load-holding bypass
US8944103B2 (en) 2011-08-31 2015-02-03 Caterpillar Inc. Meterless hydraulic system having displacement control valve
KR101142434B1 (en) * 2011-09-08 2012-05-08 (주)오비메드 Method for noninvasive prediction or diagnosis of inflammation and infection in amniotic fluid of patients with premature rupture of membranes
US9051714B2 (en) 2011-09-30 2015-06-09 Caterpillar Inc. Meterless hydraulic system having multi-actuator circuit
US8966891B2 (en) 2011-09-30 2015-03-03 Caterpillar Inc. Meterless hydraulic system having pump protection
US9057389B2 (en) 2011-09-30 2015-06-16 Caterpillar Inc. Meterless hydraulic system having multi-actuator circuit
US9151018B2 (en) 2011-09-30 2015-10-06 Caterpillar Inc. Closed-loop hydraulic system having energy recovery
US8978374B2 (en) 2011-10-21 2015-03-17 Caterpillar Inc. Meterless hydraulic system having flow sharing and combining functionality
US8978373B2 (en) 2011-10-21 2015-03-17 Caterpillar Inc. Meterless hydraulic system having flow sharing and combining functionality
US9080310B2 (en) 2011-10-21 2015-07-14 Caterpillar Inc. Closed-loop hydraulic system having regeneration configuration
US8973358B2 (en) 2011-10-21 2015-03-10 Caterpillar Inc. Closed-loop hydraulic system having force modulation
US8910474B2 (en) 2011-10-21 2014-12-16 Caterpillar Inc. Hydraulic system
US8919114B2 (en) 2011-10-21 2014-12-30 Caterpillar Inc. Closed-loop hydraulic system having priority-based sharing
US8943819B2 (en) 2011-10-21 2015-02-03 Caterpillar Inc. Hydraulic system
US9068578B2 (en) 2011-10-21 2015-06-30 Caterpillar Inc. Hydraulic system having flow combining capabilities
US8893490B2 (en) 2011-10-21 2014-11-25 Caterpillar Inc. Hydraulic system
US8984873B2 (en) 2011-10-21 2015-03-24 Caterpillar Inc. Meterless hydraulic system having flow sharing and combining functionality
US9279236B2 (en) 2012-06-04 2016-03-08 Caterpillar Inc. Electro-hydraulic system for recovering and reusing potential energy
US9290912B2 (en) 2012-10-31 2016-03-22 Caterpillar Inc. Energy recovery system having integrated boom/swing circuits
US9290911B2 (en) 2013-02-19 2016-03-22 Caterpillar Inc. Energy recovery system for hydraulic machine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6129813Y2 (en) * 1980-07-07 1986-09-02
DE3044143A1 (en) * 1980-11-24 1982-06-24 Linde Ag, 6200 Wiesbaden CONTROL DEVICE FOR A HYDROSTATIC DRIVE SYSTEM
EP0059471B1 (en) * 1981-03-03 1986-05-28 Hitachi Construction Machinery Co., Ltd. Hydrostatic drive system for civil engineering and construction machinery
KR870000506B1 (en) * 1981-05-02 1987-03-12 니시모도 후미히라(西元文平) Hydraulic circuit system for civil engineering and architectural machinery
JPS60211522A (en) * 1984-04-05 1985-10-23 Kubota Ltd Operating structure of working truck
DE3811312A1 (en) * 1988-04-02 1989-10-19 Bosch Gmbh Robert Double-acting working cylinder
JPH07116721B2 (en) * 1989-01-31 1995-12-13 油谷重工株式会社 Hydraulic circuit of hydraulic excavator
US4986072A (en) * 1989-08-31 1991-01-22 Kabushiki Kaisha Kobe Seiko Sho Hydraulic actuator circuit with flow-joining control
JPH0630734A (en) * 1992-07-20 1994-02-08 Kenhachiro Nakamoto Production of synthetic egg

Also Published As

Publication number Publication date
JPH0657786A (en) 1994-03-01
DE4324129C2 (en) 1997-04-30
KR970000247B1 (en) 1997-01-08
GB2269425B (en) 1995-11-22
FR2694604A1 (en) 1994-02-11
GB9313021D0 (en) 1993-08-11
GB2269425A (en) 1994-02-09
KR940005896A (en) 1994-03-22
DE4324129A1 (en) 1994-02-10
JP2702646B2 (en) 1998-01-21

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20130430