FR2193424A5 - - Google Patents

Info

Publication number
FR2193424A5
FR2193424A5 FR7326144A FR7326144A FR2193424A5 FR 2193424 A5 FR2193424 A5 FR 2193424A5 FR 7326144 A FR7326144 A FR 7326144A FR 7326144 A FR7326144 A FR 7326144A FR 2193424 A5 FR2193424 A5 FR 2193424A5
Authority
FR
France
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
FR7326144A
Other languages
French (fr)
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
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 Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Application granted granted Critical
Publication of FR2193424A5 publication Critical patent/FR2193424A5/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/002—Hydraulic systems to change the pump delivery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/007—Installations or systems with two or more pumps or pump cylinders, wherein the flow-path through the stages can be changed, e.g. from series to parallel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Control Of Fluid Gearings (AREA)
  • Operation Control Of Excavators (AREA)
FR7326144A 1972-07-17 1973-07-17 Expired FR2193424A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00272408A US3841795A (en) 1972-07-17 1972-07-17 Combined engine speed and pressure responsive control for variable displacement pumps

Publications (1)

Publication Number Publication Date
FR2193424A5 true FR2193424A5 (en) 1974-02-15

Family

ID=23039671

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7326144A Expired FR2193424A5 (en) 1972-07-17 1973-07-17

Country Status (7)

Country Link
US (1) US3841795A (en)
JP (1) JPS5918558B2 (en)
BE (1) BE802395A (en)
BR (1) BR7305193D0 (en)
DE (1) DE2336430C2 (en)
FR (1) FR2193424A5 (en)
GB (1) GB1436613A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2339759A1 (en) * 1976-01-30 1977-08-26 Linde Ag CONTROL DEVICE FOR A PUMP SET
FR2385916A1 (en) * 1977-03-31 1978-10-27 Komatsu Mfg Co Ltd PUMP CONTROL, SINGLE OR MULTIPLE, WITH VARIABLE DISPLACEMENT USING A FLOW MEASURING VALVE
FR2388149A1 (en) * 1977-04-19 1978-11-17 Caterpillar Tractor Co HYDRAULIC INSTALLATION WITH SIMULTANEOUS SELECTIVE PRESSURE AND FLOW CONTROL

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2247112A5 (en) * 1973-10-03 1975-05-02 Poclain Sa
JPS57227Y2 (en) * 1973-11-19 1982-01-05
US3868821A (en) * 1974-03-20 1975-03-04 Tyrone Hydraulics Automatic pump control system
JPS59713B2 (en) * 1974-04-08 1984-01-07 三菱重工業株式会社 Yuatsu Pumpno Ryuuriyouseigiyosouchi
US3985472A (en) * 1975-04-23 1976-10-12 International Harvester Company Combined fixed and variable displacement pump system
US3963378A (en) * 1975-06-04 1976-06-15 Caterpillar Tractor Co. Part throttle control -- pump override
US4008004A (en) * 1975-12-22 1977-02-15 Abex Corporation Control system for variable displacement pumps
US4029439A (en) * 1975-12-22 1977-06-14 Abex Corporation Control system for variable displacement pumps
US4017218A (en) * 1976-03-15 1977-04-12 Caterpillar Tractor Co. Dual-speed setting underspeed system
US4055046A (en) * 1976-12-22 1977-10-25 Caterpillar Tractor Co. Control system having override for fluid operated work elements
US4065228A (en) * 1977-02-24 1977-12-27 Caterpillar Tractor Co. Hydraulic control for variable displacement pumps
US4080979A (en) * 1977-03-22 1978-03-28 Caterpillar Tractor Co. Combined summing and underspeed valve
US4240457A (en) * 1978-03-15 1980-12-23 Caterpillar Tractor Co. Variable flow control valve for steering systems of articulated vehicles
JPS5543246A (en) * 1978-09-22 1980-03-27 Komatsu Ltd Volume controller of variable hydraulic pump
JPS5543245A (en) * 1978-09-22 1980-03-27 Komatsu Ltd Volume controller of variable hydraulic pump
JPS5569782A (en) * 1978-11-20 1980-05-26 Japan Steel Works Ltd:The Output-power controller for pumps
DE3049938A1 (en) * 1979-10-15 1982-03-18 Y Aoyagi Method of controlling internal combustion engine and hydraulic pump system
EP0037738B1 (en) * 1980-04-08 1983-08-17 Minnesota Mining And Manufacturing Company Automatic track following feature for helical video recorder
DE3024399A1 (en) * 1980-06-28 1982-01-21 Linde Ag, 6200 Wiesbaden CONTROL DEVICE FOR A UNIT COMPOSED OF SEVERAL PUMP DRIVEN BY A COMMON PRIMARY ENERGY SOURCE
JPS57197336A (en) * 1981-05-29 1982-12-03 Komatsu Ltd Oil-pressure circuit for turning excavator
JPS5888480A (en) * 1981-11-21 1983-05-26 Hitachi Constr Mach Co Ltd Input control for hydraulic pump driven by prime mover
US4498847A (en) * 1982-06-29 1985-02-12 Kabushiki Kaisha Komatsu Seisakusho Control system for variable displacement hydraulic pumps
US4613286A (en) * 1984-12-31 1986-09-23 Kabushiki Kaisha Komatsu Seisakusho Constant torque control system for a variable displacement pump or pumps
JP2699491B2 (en) * 1988-11-30 1998-01-19 石川島播磨重工業株式会社 Equipment for storing riser pipes for oil drilling
JPH07111176B2 (en) * 1988-12-16 1995-11-29 ダイキン工業株式会社 Variable displacement hydraulic device
US5468126A (en) * 1993-12-23 1995-11-21 Caterpillar Inc. Hydraulic power control system
US5525043A (en) * 1993-12-23 1996-06-11 Caterpillar Inc. Hydraulic power control system
EP2002129A4 (en) * 2006-03-13 2011-08-03 Volvo Constr Equip Ab Arrangement and method for delivering hydraulic fluid in a work vehicle
US7549287B2 (en) 2007-09-14 2009-06-23 Cnh America Llc Hydrostatic auto/manual speed control
US8326499B2 (en) * 2008-12-02 2012-12-04 Caterpillar Inc. Retarding control of a machine through power dissipation through power source and parasitic loads

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3543508A (en) * 1968-10-16 1970-12-01 Hyster Co Hydrostatic transmission with pressure control
GB1293931A (en) * 1969-02-18 1972-10-25 Dowty Hydraulic Units Ltd Hydraulic apparatus
DE1910914A1 (en) * 1969-03-04 1971-04-22 Brueninghaus Hydraulik Gmbh Power control device for axial piston pumps
CH508498A (en) * 1969-04-24 1971-06-15 Bosch Gmbh Robert Control device for a hydrostatic vehicle drive
DE1933951C3 (en) * 1969-07-04 1974-08-29 Hydromatik Gmbh, 7900 Ulm Control device for limiting the sum of the consumed power of two or more adjustable hydraulic pumps
ZA704229B (en) * 1969-10-06 1971-03-31 Elektrohydraulische Anlagen An A hydraulic system
DE2001701C3 (en) * 1970-01-15 1979-04-05 Linde Ag, 6200 Wiesbaden Setting device for the remote control of a continuously adjustable hydrostatic transmission
DE2100112A1 (en) * 1970-02-23 1971-09-09 VEB Kombinat Orsta-Hydraulik Betrieb Industriewerke Karl-Marx-Stadt, χ 9030 Karl-Marx-Stadt Pressure control device
NO124443B (en) * 1970-04-22 1972-04-17 Ingebret Soeyland

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2339759A1 (en) * 1976-01-30 1977-08-26 Linde Ag CONTROL DEVICE FOR A PUMP SET
FR2385916A1 (en) * 1977-03-31 1978-10-27 Komatsu Mfg Co Ltd PUMP CONTROL, SINGLE OR MULTIPLE, WITH VARIABLE DISPLACEMENT USING A FLOW MEASURING VALVE
FR2388149A1 (en) * 1977-04-19 1978-11-17 Caterpillar Tractor Co HYDRAULIC INSTALLATION WITH SIMULTANEOUS SELECTIVE PRESSURE AND FLOW CONTROL

Also Published As

Publication number Publication date
JPS504601A (en) 1975-01-18
BE802395A (en) 1974-01-16
GB1436613A (en) 1976-05-19
DE2336430C2 (en) 1986-05-22
JPS5918558B2 (en) 1984-04-27
BR7305193D0 (en) 1974-08-15
DE2336430A1 (en) 1974-01-31
US3841795A (en) 1974-10-15

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse