IT1101873B - Dispositivo di regolazione per pompe a portata variabile in singolo od a gruppi con una valvola perfezionata di misurazione della portata - Google Patents

Dispositivo di regolazione per pompe a portata variabile in singolo od a gruppi con una valvola perfezionata di misurazione della portata

Info

Publication number
IT1101873B
IT1101873B IT48687/78A IT4868778A IT1101873B IT 1101873 B IT1101873 B IT 1101873B IT 48687/78 A IT48687/78 A IT 48687/78A IT 4868778 A IT4868778 A IT 4868778A IT 1101873 B IT1101873 B IT 1101873B
Authority
IT
Italy
Prior art keywords
perfected
regulating device
measurement valve
group variable
pumps
Prior art date
Application number
IT48687/78A
Other languages
English (en)
Other versions
IT7848687A0 (it
Original Assignee
Komatsu Mfg Co Ltd
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 JP3539877A external-priority patent/JPS53122101A/ja
Priority claimed from JP3539977A external-priority patent/JPS53122102A/ja
Priority claimed from JP3539777A external-priority patent/JPS53122106A/ja
Application filed by Komatsu Mfg Co Ltd filed Critical Komatsu Mfg Co Ltd
Publication of IT7848687A0 publication Critical patent/IT7848687A0/it
Application granted granted Critical
Publication of IT1101873B publication Critical patent/IT1101873B/it

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)
IT48687/78A 1977-03-31 1978-03-31 Dispositivo di regolazione per pompe a portata variabile in singolo od a gruppi con una valvola perfezionata di misurazione della portata IT1101873B (it)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3539877A JPS53122101A (en) 1977-03-31 1977-03-31 Variable capacity type liquid pressure pump input torque limiter
JP3539977A JPS53122102A (en) 1977-03-31 1977-03-31 Variable capacity type liquid pressure pump input torque controller
JP3539777A JPS53122106A (en) 1977-03-31 1977-03-31 Automatic throttle valve device

Publications (2)

Publication Number Publication Date
IT7848687A0 IT7848687A0 (it) 1978-03-31
IT1101873B true IT1101873B (it) 1985-10-07

Family

ID=27288747

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48687/78A IT1101873B (it) 1977-03-31 1978-03-31 Dispositivo di regolazione per pompe a portata variabile in singolo od a gruppi con una valvola perfezionata di misurazione della portata

Country Status (4)

Country Link
US (1) US4203712A (it)
DE (1) DE2813486C2 (it)
FR (1) FR2385916A1 (it)
IT (1) IT1101873B (it)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2823559A1 (de) * 1978-05-30 1979-12-06 Linde Ag Steuer- und regeleinrichtung fuer ein hydrostatisches getriebe
JPS5543245A (en) * 1978-09-22 1980-03-27 Komatsu Ltd Volume controller of variable hydraulic pump
JPS5543246A (en) * 1978-09-22 1980-03-27 Komatsu Ltd Volume controller of variable hydraulic pump
US4359130A (en) * 1980-05-27 1982-11-16 International Harvester Co. Hydraulic system for responsive splitting of engine power
US4398869A (en) * 1980-05-27 1983-08-16 Dresser Industries, Inc. Control means for variable displacement pump
US4382485A (en) * 1980-05-27 1983-05-10 Dresser Industries, Inc. Hydraulic logic control for variable displacement pump
DE3024399A1 (de) * 1980-06-28 1982-01-21 Linde Ag, 6200 Wiesbaden Regeleinrichtung fuer ein aggregat aus mehreren, von einer gemeinsamen primaerenergiequelle angetriebenen pumpe
JPS6126585Y2 (it) * 1980-12-25 1986-08-09
US4527393A (en) * 1981-09-02 1985-07-09 General Signal Corporation Control device for a hydrostatic transmission
US4613286A (en) * 1984-12-31 1986-09-23 Kabushiki Kaisha Komatsu Seisakusho Constant torque control system for a variable displacement pump or pumps
EP0211980B1 (de) * 1985-08-17 1991-01-23 Vickers Systems GmbH Antriebsdrehmoment-Regeleinrichtung
US4745746A (en) * 1986-08-22 1988-05-24 Sundstrand Corporation Power control for a hydrostatic transmission
DE3644769A1 (de) * 1986-12-30 1988-07-14 Brueninghaus Hydraulik Gmbh Regeleinrichtung fuer eine verstellbare hydrostatische maschine
US4884401A (en) * 1988-08-30 1989-12-05 Sundstrand Corp. Three position dual failure shut-off valve system
US5876185A (en) * 1996-11-20 1999-03-02 Caterpillar Inc. Load sensing pump control for a variable displacement pump
CA2590980C (en) * 2007-06-06 2013-06-25 Orlande Sivacoe Pig pumping unit
DE102011122366A1 (de) * 2011-12-23 2013-06-27 Robert Bosch Gmbh Druckregelanordnung mit Druckregelventil und hydraulischer Kreis damit
KR101292136B1 (ko) * 2013-03-19 2013-08-08 김경성 차량용 유압 공급장치
CN105143669B (zh) * 2013-03-27 2017-02-01 Ｋｙｂ株式会社 泵排出流量控制装置
JP6075866B2 (ja) * 2013-03-27 2017-02-08 Ｋｙｂ株式会社 ポンプ制御装置
JP2016020105A (ja) * 2014-07-11 2016-02-04 Ｋｙｂ株式会社 液圧駆動システム
CA2940924A1 (en) 2016-09-01 2018-03-01 Orlande Sivacoe Pig pumpimg unit
US10801617B2 (en) 2018-01-05 2020-10-13 Cnh Industrial America Llc Propel system with active pump displacement control for balancing propel pump pressures in agricultural vehicles

Family Cites Families (13)

* 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
DE1910914A1 (de) * 1969-03-04 1971-04-22 Brueninghaus Hydraulik Gmbh Leistungsregeleinrichtung fuer Axialkolbenpumpen
DE2103095C3 (de) * 1971-01-23 1975-02-06 Robert Bosch Gmbh, 7000 Stuttgart Betätigungseinrichtung für einen hydrostatischen Antrieb eines Fahrzeugs, insbesondere eines Kraftfahrzeugs mit einem Nebenabtrieb
BE794115A (fr) * 1971-03-24 1973-05-16 Caterpillar Tractor Co Dispositif de valve sommatrice
DE2141724A1 (de) * 1971-08-20 1973-03-01 Bosch Gmbh Robert Steuer- und regeleinrichtung fuer eine hydropumpe
US3841795A (en) * 1972-07-17 1974-10-15 Caterpillar Tractor Co Combined engine speed and pressure responsive control for variable displacement pumps
CA1044991A (en) * 1974-07-22 1978-12-26 General Signal Corporation Hydraulic control valve
DE2505780C2 (de) * 1975-02-12 1986-03-06 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung zum Regeln wenigstens einer verstellbaren Pumpe
US3963378A (en) * 1975-06-04 1976-06-15 Caterpillar Tractor Co. Part throttle control -- pump override
US4017215A (en) * 1976-03-15 1977-04-12 Caterpillar Tractor Co. Infinitely variable orifice for part throttle control
DE2624355A1 (de) * 1975-06-04 1976-12-16 Caterpillar Tractor Co Hydraulisches system
DE2557374A1 (de) * 1975-12-19 1977-06-30 Bosch Gmbh Robert Steuereinrichtung fuer ein hydrostatisches getriebe
DE2603563C2 (de) * 1976-01-30 1986-02-20 Linde Ag, 6200 Wiesbaden Steuereinrichtung für ein aus mindestens zwei Pumpen bestehendes Pumpen-Aggregat

Also Published As

Publication number Publication date
DE2813486A1 (de) 1978-10-05
US4203712A (en) 1980-05-20
IT7848687A0 (it) 1978-03-31
FR2385916A1 (fr) 1978-10-27
FR2385916B1 (it) 1983-12-02
DE2813486C2 (de) 1986-06-26

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