GB1222104A - A control system for hydraulic alloy operated appliances - Google Patents

A control system for hydraulic alloy operated appliances

Info

Publication number
GB1222104A
GB1222104A GB00912/68A GB1091268A GB1222104A GB 1222104 A GB1222104 A GB 1222104A GB 00912/68 A GB00912/68 A GB 00912/68A GB 1091268 A GB1091268 A GB 1091268A GB 1222104 A GB1222104 A GB 1222104A
Authority
GB
United Kingdom
Prior art keywords
valves
valve
actuator
pumps
neutral
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
Application number
GB00912/68A
Other languages
English (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.)
Orenstein Koppel und Luebecker Maschinenbau AG
CNH Industrial Baumaschinen GmbH
Original Assignee
O&K Orenstein and Koppel GmbH
Orenstein Koppel und Luebecker Maschinenbau AG
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 O&K Orenstein and Koppel GmbH, Orenstein Koppel und Luebecker Maschinenbau AG filed Critical O&K Orenstein and Koppel GmbH
Publication of GB1222104A publication Critical patent/GB1222104A/en
Expired 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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • 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
    • 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
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7058—Rotary output members
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups

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)
  • Fluid-Pressure Circuits (AREA)
GB00912/68A 1967-03-10 1968-03-06 A control system for hydraulic alloy operated appliances Expired GB1222104A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1634915A DE1634915C3 (de) 1967-03-10 1967-03-10 Schaltung für Hydraulikbagger

Publications (1)

Publication Number Publication Date
GB1222104A true GB1222104A (en) 1971-02-10

Family

ID=7352746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB00912/68A Expired GB1222104A (en) 1967-03-10 1968-03-06 A control system for hydraulic alloy operated appliances

Country Status (11)

Country Link
US (1) US3478647A (de)
JP (1) JPS5345475B1 (de)
AT (1) AT284018B (de)
BE (1) BE711290A (de)
CH (1) CH481279A (de)
DE (1) DE1634915C3 (de)
FI (1) FI47676C (de)
FR (1) FR1555395A (de)
GB (1) GB1222104A (de)
NL (1) NL6802984A (de)
SE (1) SE334129B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4846769A (de) * 1971-10-20 1973-07-03
GB2243879A (en) * 1990-03-09 1991-11-13 Kubota Kk Hydraulic circuit for a working vehicle having a plurality of hydraulic actuators
US5701795A (en) * 1992-12-11 1997-12-30 Danfoss A/S Hydraulic system

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE792617A (fr) * 1971-12-13 1973-06-12 Caterpillar Tractor Co Circuit hydraulique pour un excavateur.
US3792836A (en) * 1972-03-06 1974-02-19 E Bender Simplified well rig
DE2364282C3 (de) * 1973-12-22 1983-01-13 O & K Orenstein & Koppel Ag, 1000 Berlin Schaltungsanordnung für Hydraulikmotoren
CA1278978C (en) * 1987-02-19 1991-01-15 Lary Lynn Williams Hydraulic system for an industrial machine
JPS63308821A (ja) * 1987-06-10 1988-12-16 Matsushita Electric Ind Co Ltd 可動形電子部品
JPH078601Y2 (ja) * 1987-11-10 1995-03-01 株式会社クボタ バックホウの油圧回路
JPH02101440U (de) * 1989-01-27 1990-08-13
US5469797A (en) * 1994-02-07 1995-11-28 Hearne, Jr.; David C. Sugar cane planter
DE19744327C1 (de) * 1997-10-08 1998-10-22 Walterscheid Gmbh Gkn Vorrichtung zur Stabilisierung der Unterlenker eines Traktors
DE19911440C2 (de) * 1999-03-04 2002-09-19 Komatsu Mining Germany Gmbh Vorrichtung und Verfahren zur Ansteuerung einer Hydraulikanlage einer Baumaschine, insbesondere eines Hydraulikbaggers
CN109944835B (zh) * 2019-04-02 2024-04-23 重庆平山机电设备有限公司 一种钻机的液压系统及钻机
CN110482084B (zh) * 2019-08-20 2021-11-19 长沙中联重科环境产业有限公司 垃圾压实器
CN115853753A (zh) * 2022-12-22 2023-03-28 中国第一汽车股份有限公司 油泵卸荷系统、方法、存储介质和车辆

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2319551A (en) * 1937-08-09 1943-05-18 Fosdick Machine Tool Co Hydraulic operating and control mechanism for machine tools
US2244213A (en) * 1939-01-12 1941-06-03 Hydraulic Control Engineering Valve structure
US3156098A (en) * 1959-11-20 1964-11-10 Ford Motor Co Hydraulic power system
US3146593A (en) * 1960-04-18 1964-09-01 Parker Hannifin Corp Dual pump system and control valve assembly therefor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4846769A (de) * 1971-10-20 1973-07-03
JPS5148231B2 (de) * 1971-10-20 1976-12-20
GB2243879A (en) * 1990-03-09 1991-11-13 Kubota Kk Hydraulic circuit for a working vehicle having a plurality of hydraulic actuators
GB2243879B (en) * 1990-03-09 1993-12-08 Kubota Kk Hydraulic circuit for a working vehicle having a plurality of hydraulic actuators
US5289680A (en) * 1990-03-09 1994-03-01 Kubota Corporation Two pump hydraulic system with relief valves having different relief pressures
US5701795A (en) * 1992-12-11 1997-12-30 Danfoss A/S Hydraulic system

Also Published As

Publication number Publication date
US3478647A (en) 1969-11-18
CH481279A (de) 1969-11-15
DE1634915C3 (de) 1981-02-12
FI47676B (de) 1973-10-31
SE334129B (de) 1971-04-05
AT284018B (de) 1970-08-25
JPS5345475B1 (de) 1978-12-06
FI47676C (fi) 1974-02-11
NL6802984A (de) 1968-09-11
BE711290A (de) 1968-07-01
DE1634915A1 (de) 1970-10-29
DE1634915B2 (de) 1977-09-08
FR1555395A (de) 1969-01-24

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