FR2385916A1 - Commande de pompe, simple ou multiple, a deplacement variable a l'aide d'une soupape de mesure d'ecoulement - Google Patents

Commande de pompe, simple ou multiple, a deplacement variable a l'aide d'une soupape de mesure d'ecoulement

Info

Publication number
FR2385916A1
FR2385916A1 FR7809694A FR7809694A FR2385916A1 FR 2385916 A1 FR2385916 A1 FR 2385916A1 FR 7809694 A FR7809694 A FR 7809694A FR 7809694 A FR7809694 A FR 7809694A FR 2385916 A1 FR2385916 A1 FR 2385916A1
Authority
FR
France
Prior art keywords
pump
flow measuring
variable displacement
pump control
measuring valve
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.)
Granted
Application number
FR7809694A
Other languages
English (en)
Other versions
FR2385916B1 (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.)
Komatsu Ltd
Original Assignee
Komatsu 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 JP3539777A external-priority patent/JPS53122106A/ja
Priority claimed from JP3539977A external-priority patent/JPS53122102A/ja
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Publication of FR2385916A1 publication Critical patent/FR2385916A1/fr
Application granted granted Critical
Publication of FR2385916B1 publication Critical patent/FR2385916B1/fr
Granted 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)

Abstract

Système hydraulique de commande du déplacement d'une ou plusieurs pompes à déplacement variable. Le moteur d'entraînement 11 de la pompe 10 entraîne une pompe 13 suivie d'un étranglement 15. Une soupape détectrice 19 fournit une pression de sortie correspondante. Une servo-commande 12 de la pompe 10 communique avec l'étranglement 15 et la soupape détectrice 19 et règle le déplacement de la pompe 10. Une soupape de mesure d'écoulement 24 est montée en dérivation sur l'étranglement 15. Application : régulation de pompes.
FR7809694A 1977-03-31 1978-03-31 Commande de pompe, simple ou multiple, a deplacement variable a l'aide d'une soupape de mesure d'ecoulement Granted FR2385916A1 (fr)

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
JP3539777A JPS53122106A (en) 1977-03-31 1977-03-31 Automatic throttle valve device
JP3539977A JPS53122102A (en) 1977-03-31 1977-03-31 Variable capacity type liquid pressure pump input torque controller

Publications (2)

Publication Number Publication Date
FR2385916A1 true FR2385916A1 (fr) 1978-10-27
FR2385916B1 FR2385916B1 (fr) 1983-12-02

Family

ID=27288747

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7809694A Granted FR2385916A1 (fr) 1977-03-31 1978-03-31 Commande de pompe, simple ou multiple, a deplacement variable a l'aide d'une soupape de mesure d'ecoulement

Country Status (4)

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

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 (fr) * 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
DE3581539D1 (de) * 1985-08-17 1991-02-28 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 (fr) * 2007-06-06 2013-06-25 Orlande Sivacoe Groupe de pompage gigogne
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
JP6075866B2 (ja) * 2013-03-27 2017-02-08 Ｋｙｂ株式会社 ポンプ制御装置
WO2014156532A1 (fr) * 2013-03-27 2014-10-02 カヤバ工業株式会社 Dispositif de régulation de débit de décharge de pompe
JP2016020105A (ja) * 2014-07-11 2016-02-04 Ｋｙｂ株式会社 液圧駆動システム
CA2940924A1 (fr) * 2016-09-01 2018-03-01 Orlande Sivacoe Module de pompage a piston-racleur
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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2122951A5 (fr) * 1971-01-23 1972-09-01 Zahnradfabrik Friedrichshafen
US3732036A (en) * 1971-03-24 1973-05-08 Caterpillar Tractor Co Summing valve arrangement
FR2193424A5 (fr) * 1972-07-17 1974-02-15 Caterpillar Tractor Co
FR2280129A1 (fr) * 1974-07-22 1976-02-20 Gen Signal Corp Dispositif de commande hydraulique
US3963378A (en) * 1975-06-04 1976-06-15 Caterpillar Tractor Co. Part throttle control -- pump override
FR2300915A1 (fr) * 1975-02-12 1976-09-10 Bosch Gmbh Robert Dispositif de regulation pour une pompe

Family Cites Families (7)

* 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
DE2141724A1 (de) * 1971-08-20 1973-03-01 Bosch Gmbh Robert Steuer- und regeleinrichtung fuer eine hydropumpe
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2122951A5 (fr) * 1971-01-23 1972-09-01 Zahnradfabrik Friedrichshafen
US3732036A (en) * 1971-03-24 1973-05-08 Caterpillar Tractor Co Summing valve arrangement
FR2193424A5 (fr) * 1972-07-17 1974-02-15 Caterpillar Tractor Co
US3841795A (en) * 1972-07-17 1974-10-15 Caterpillar Tractor Co Combined engine speed and pressure responsive control for variable displacement pumps
FR2280129A1 (fr) * 1974-07-22 1976-02-20 Gen Signal Corp Dispositif de commande hydraulique
FR2300915A1 (fr) * 1975-02-12 1976-09-10 Bosch Gmbh Robert Dispositif de regulation pour une pompe
US3963378A (en) * 1975-06-04 1976-06-15 Caterpillar Tractor Co. Part throttle control -- pump override

Also Published As

Publication number Publication date
US4203712A (en) 1980-05-20
FR2385916B1 (fr) 1983-12-02
DE2813486A1 (de) 1978-10-05
DE2813486C2 (de) 1986-06-26
IT1101873B (it) 1985-10-07
IT7848687A0 (it) 1978-03-31

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Legal Events

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ST Notification of lapse