IT8022704A0 - Controllo elettronico per pompe a spostamento variabile. - Google Patents

Controllo elettronico per pompe a spostamento variabile.

Info

Publication number
IT8022704A0
IT8022704A0 IT8022704A IT2270480A IT8022704A0 IT 8022704 A0 IT8022704 A0 IT 8022704A0 IT 8022704 A IT8022704 A IT 8022704A IT 2270480 A IT2270480 A IT 2270480A IT 8022704 A0 IT8022704 A0 IT 8022704A0
Authority
IT
Italy
Prior art keywords
electronic control
variable displacement
displacement pumps
pumps
variable
Prior art date
Application number
IT8022704A
Other languages
English (en)
Other versions
IT1131820B (it
Inventor
Richard H Woodring
Thomas A Kowalski
Paul K Houtman
Charles H Whitmore
Original Assignee
Parker Hannifin 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 Parker Hannifin Corp filed Critical Parker Hannifin Corp
Publication of IT8022704A0 publication Critical patent/IT8022704A0/it
Application granted granted Critical
Publication of IT1131820B publication Critical patent/IT1131820B/it

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
    • F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
    • 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
    • F04B49/06—Control using electricity

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
IT22704/80A 1979-06-12 1980-06-11 Controllo elettronico per pompe a spostamento variabile IT1131820B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/047,853 US4285639A (en) 1979-06-12 1979-06-12 Electronic control for variable displacement pumps

Publications (2)

Publication Number Publication Date
IT8022704A0 true IT8022704A0 (it) 1980-06-11
IT1131820B IT1131820B (it) 1986-06-25

Family

ID=21951374

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22704/80A IT1131820B (it) 1979-06-12 1980-06-11 Controllo elettronico per pompe a spostamento variabile

Country Status (9)

Country Link
US (1) US4285639A (it)
JP (1) JPS5650288A (it)
AU (1) AU5921880A (it)
BR (1) BR8003626A (it)
CA (1) CA1140655A (it)
DE (1) DE3021927A1 (it)
FR (1) FR2458840B1 (it)
GB (1) GB2056122B (it)
IT (1) IT1131820B (it)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282711A (en) * 1979-07-26 1981-08-11 Deere & Company Hydrostatic transmission control system
DE3044515A1 (de) * 1980-11-26 1982-06-03 bso Steuerungstechnik GmbH, 6603 Sulzbach Verstelleinrichtung fuer hydraulikpumpe mit verstellbarer foerdermenge
DE3315275C2 (de) * 1983-04-27 1986-01-30 Rudolf Hausherr & Söhne GmbH & Co KG, 4322 Sprockhövel Schaltung zur Steuerung von Umlaufventilen für hydraulische Hochdruckpumpen im Bergbau
US4494911A (en) * 1983-04-29 1985-01-22 General Signal Corporation Piston pump servo control
DE3422089A1 (de) * 1984-06-14 1985-12-19 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung zum regeln des druckes und der foerdermenge einer verstellbaren pumpe
US4635441A (en) * 1985-05-07 1987-01-13 Sundstrand Corporation Power drive unit and control system therefor
US4655689A (en) * 1985-09-20 1987-04-07 General Signal Corporation Electronic control system for a variable displacement pump
JPS62217313A (ja) * 1986-03-19 1987-09-24 Yuken Kogyo Kk 比例電磁式流体制御弁の制御回路
US4886422A (en) * 1987-07-09 1989-12-12 Tokyo Keiki Company Ltd. Control apparatus of variable delivery pump
US4990076A (en) * 1989-05-31 1991-02-05 Halliburton Company Pressure control apparatus and method
GB9213216D0 (en) * 1992-06-22 1992-08-05 577224 Ontario Limited Radial piston pump
DE4410719A1 (de) * 1994-03-28 1995-10-05 Bosch Gmbh Robert Elektrohydraulisch verstellbare Pumpe
US6095760A (en) * 1998-10-01 2000-08-01 Parker-Hannifin Corporation Fluid pumping apparatus with two-step load limiting control
DE102005038357A1 (de) * 2005-08-11 2007-02-15 Multivac Sepp Haggenmüller Gmbh & Co. Kg Verpackungsmaschine mit wenigstens einem Pneumatikantrieb
DE102007031527B3 (de) * 2007-07-06 2008-06-19 Multivac Sepp Haggenmüller Gmbh & Co. Kg Verpackungsmaschine und Verfahren zum Herstellen von Packungen aus einer Folie
US8647075B2 (en) * 2009-03-18 2014-02-11 Eaton Corporation Control valve for a variable displacement pump
DE102010023234A1 (de) * 2010-06-09 2011-12-15 Rag Aktiengesellschaft Verfahren und Einrichtung zur Staubbekämpfung im Bergbau untertage
WO2012082845A2 (en) * 2010-12-15 2012-06-21 Long Charles F Variator switching valve scheme for a torroidal traction drive transmission
CZ2011385A3 (cs) * 2011-06-28 2013-01-16 Wista S.R.O. Zpusob prizpusobování výkonu pohonné jednotky menícímu se zatízení a zapojení k provádení tohoto zpusobu
DE102014108945A1 (de) * 2014-06-26 2015-12-31 Robert Bosch Automotive Steering Gmbh Hydraulische Verstellpumpe, insbesondere für ein Lenksystem eines Kraftfahrzeuges
US11027304B2 (en) * 2017-07-21 2021-06-08 Carlisle Fluid Technologies, Inc. Systems and methods for fluid ratio control
US11674455B2 (en) 2021-03-26 2023-06-13 Hamilton Sundstrand Corporation Variable displacement pump with active bypass feedback control

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2969646A (en) * 1957-01-11 1961-01-31 Racine Hydraulics & Machinery Variable volume pump hydraulic transmission
US3269319A (en) * 1964-04-30 1966-08-30 Scherer Corp R P Automatic accumulator actuated pump control means
DE1528434A1 (de) * 1965-07-29 1969-09-25 Hymate Ges Fuer Hydr Automatik Hydraulische Reversiersteuerung mit Leistungsreglern
GB1134185A (en) * 1965-11-19 1968-11-20 Werkzeugmaschinenfabrik Johann Improvements in or relating to control systems for hydraulic drives in a plastics converting machine
US3625637A (en) * 1970-04-13 1971-12-07 Caterpillar Tractor Co Conversion of variable delivery pump to fixed delivery pump
DE2062368C3 (de) * 1970-12-18 1981-10-01 Indramat Gesellschaft für Industrie-Rationalisierung und Automatisierung mbH, 8770 Lohr Hydrostatisches Getriebe mit Leistungsbegrenzungssteuer
US3777492A (en) * 1971-02-17 1973-12-11 Dowty Technical Dev Ltd Hydraulic apparatus including variable delivery pumps
DE2111359A1 (de) * 1971-03-10 1972-09-28 Bosch Gmbh Robert Regeleinrichtung fuer eine Hydropumpe
US3732041A (en) * 1971-06-10 1973-05-08 Sperry Rand Corp Power transmission
DD98979A1 (it) * 1972-04-12 1973-07-12
GB1508642A (en) * 1974-02-28 1978-04-26 Eaton Corp Hydrostatic transmission control system
DE2424149A1 (de) * 1974-05-17 1976-04-08 Bosch Gmbh Robert Regeleinrichtung fuer eine pumpe
US3962930A (en) * 1974-12-16 1976-06-15 Ford Motor Company Synchronized manually controlled multiple speed ratio transmission
DE2516765C3 (de) * 1975-04-16 1985-12-05 Mannesmann Rexroth GmbH, 8770 Lohr Regelventil für eine Flügelzellenpumpe

Also Published As

Publication number Publication date
JPS5650288A (en) 1981-05-07
FR2458840B1 (fr) 1986-07-25
US4285639A (en) 1981-08-25
AU5921880A (en) 1980-12-18
CA1140655A (en) 1983-02-01
GB2056122B (en) 1983-09-01
GB2056122A (en) 1981-03-11
FR2458840A1 (fr) 1981-01-02
DE3021927A1 (de) 1980-12-18
IT1131820B (it) 1986-06-25
BR8003626A (pt) 1981-01-05

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Legal Events

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970530