IT7848167A0 - Perfezionamento nei sistemi di pompa a fluido a portata variabile - Google Patents

Perfezionamento nei sistemi di pompa a fluido a portata variabile

Info

Publication number
IT7848167A0
IT7848167A0 IT7848167A IT4816778A IT7848167A0 IT 7848167 A0 IT7848167 A0 IT 7848167A0 IT 7848167 A IT7848167 A IT 7848167A IT 4816778 A IT4816778 A IT 4816778A IT 7848167 A0 IT7848167 A0 IT 7848167A0
Authority
IT
Italy
Prior art keywords
improvement
fluid pump
variable flow
pump systems
flow fluid
Prior art date
Application number
IT7848167A
Other languages
English (en)
Other versions
IT1101886B (it
Original Assignee
Commercial Shearing
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 Commercial Shearing filed Critical Commercial Shearing
Publication of IT7848167A0 publication Critical patent/IT7848167A0/it
Application granted granted Critical
Publication of IT1101886B publication Critical patent/IT1101886B/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
    • F04B49/007—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
    • 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
    • F04B49/08—Regulating by delivery pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Reciprocating Pumps (AREA)
IT48167/78A 1977-02-24 1978-02-23 Perfezionamento nei sistemi di pompa a fluido a portata variabile IT1101886B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77167277A 1977-02-24 1977-02-24

Publications (2)

Publication Number Publication Date
IT7848167A0 true IT7848167A0 (it) 1978-02-23
IT1101886B IT1101886B (it) 1985-10-07

Family

ID=25092597

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48167/78A IT1101886B (it) 1977-02-24 1978-02-23 Perfezionamento nei sistemi di pompa a fluido a portata variabile

Country Status (10)

Country Link
US (1) US4349319A (it)
JP (1) JPS53134201A (it)
AU (1) AU521433B2 (it)
BR (1) BR7801152A (it)
CA (1) CA1104033A (it)
DE (2) DE2858210C2 (it)
FR (1) FR2381922A1 (it)
GB (1) GB1598487A (it)
IT (1) IT1101886B (it)
ZA (1) ZA781021B (it)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3044515A1 (de) * 1980-11-26 1982-06-03 bso Steuerungstechnik GmbH, 6603 Sulzbach Verstelleinrichtung fuer hydraulikpumpe mit verstellbarer foerdermenge
CA1150590A (en) * 1981-02-23 1983-07-26 John D. Petro Flow and pressure compensated valves and pump circuits incorporating the same
DE3232695C2 (de) * 1982-09-02 1984-08-16 Hydromatik GmbH, 7915 Elchingen Leistungsregel-Vorrichtung für eine Hydropumpe
JPS59103947U (ja) * 1982-12-27 1984-07-12 株式会社クボタ パワ−トランスミツシヨン
US4518320A (en) * 1984-02-03 1985-05-21 Deere & Company Variable displacement pump system
DE3445516C1 (de) * 1984-12-13 1989-05-18 Mannesmann Rexroth GmbH, 8770 Lohr Steuervorrichtung fuer eine Regelpumpe
DE3608469A1 (de) * 1986-03-14 1987-10-01 Bosch Gmbh Robert Hydraulikanlage
DE3711053A1 (de) * 1987-04-02 1988-10-20 Brueninghaus Hydraulik Gmbh Regeleinrichtung fuer wenigstens zwei mit einer gemeinsamen arbeitsdruckleitung in verbindung stehende hydrostatische maschinen
DE3711050A1 (de) * 1987-04-02 1988-10-20 Brueninghaus Hydraulik Gmbh Regeleinrichtung fuer wenigstens zwei mit einer gemeinsamen arbeitsdruckleitung in verbindung stehende hydrostatische maschinen
DE3742111A1 (de) * 1987-04-02 1989-06-29 Brueninghaus Hydraulik Gmbh Regeleinrichtung fuer wenigstens zwei mit einer gemeinsamen arbeitsdruckleitung in verbindung stehende hydrostatische maschinen veraenderlichen foerder- bzw. schluckvolumens
DE3728207A1 (de) * 1987-08-24 1989-03-09 Rexroth Mannesmann Gmbh Ventilanordnung fuer zwei von einem gemeinsamen antrieb angetriebene leistungsgeregelte pumpen
US4986071A (en) * 1989-06-05 1991-01-22 Komatsu Dresser Company Fast response load sense control system
EP0533953B1 (en) * 1991-04-15 1997-08-27 Hitachi Construction Machinery Co., Ltd. Hydraulic driving system in construction machine
CA2260684C (en) * 1998-02-06 2004-06-01 Robert D. Backer Pump enable system and method
US8647075B2 (en) * 2009-03-18 2014-02-11 Eaton Corporation Control valve for a variable displacement pump
DE102011011202B4 (de) * 2011-02-14 2013-03-14 Tecmara Gmbh Schutzvorrichtung zum Schutz einer Pumpe, insbesondere zum Schutz der in einem Strömungskreislauf, insbesondere innerhalb einer Anlage vorgesehenen Pumpe vor einer Überhitzung und/oder vor einem Leerlaufen bzw. zum Schutz der in der Anlage vorgesehenen verfahrenstechnischen Prozesseinrichtungen

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2238061A (en) * 1938-05-12 1941-04-15 Manly Corp Fluid pressure system and control therefor
US2418532A (en) * 1943-03-10 1947-04-08 Hydraulic Dev Corp Inc Remote control
US2835228A (en) * 1954-12-07 1958-05-20 American Brake Shoe Co Pressure compensator for variable volume pumps
US3051092A (en) * 1959-01-06 1962-08-28 United Aircraft Corp Pump torque limiting means
DE1453505A1 (de) * 1962-05-11 1969-03-27 Linde Ag Einrichtung zum Steuern einer stufenlos regelbaren hydrostatischen Einheit
DE1450686B2 (de) * 1964-06-13 1972-01-13 Robert Bosch Gmbh, 7000 Stuttgart Regeleinrichtung fuer ein hydrostatisches getriebe
US3366064A (en) * 1965-03-10 1968-01-30 Borg Warner Control for hydraulic apparatus
DE1922269A1 (de) * 1969-04-29 1970-11-12 Bellows Valvair Kaemper Gmbh Summenleistungsregler
DE2004268A1 (de) * 1970-01-30 1971-08-05 Hitachi Ltd Einrichtung zur Steuerung von Pumpen fur den Betrieb hydraulischer Anlagen
NO124443B (it) * 1970-04-22 1972-04-17 Ingebret Soeyland
BE794115A (fr) * 1971-03-24 1973-05-16 Caterpillar Tractor Co Dispositif de valve sommatrice
GB1397391A (en) * 1971-06-23 1975-06-11 Lucas Industries Ltd Actuator for stroke control in hydraulic machines
CA962130A (en) * 1971-06-28 1975-02-04 Caterpillar Tractor Co. Variable displacement pump having pressure compensator control means
DD98980A1 (it) * 1972-04-05 1973-07-12
US3797245A (en) * 1972-08-25 1974-03-19 Caterpillar Tractor Co Dual range pressure dependent variable flow fluid delivery system
US3809501A (en) * 1973-01-08 1974-05-07 Gen Signal Corp Hydraulic load sensitive system
FR2215102A5 (it) * 1973-01-22 1974-08-19 Caterpillar Tractor Co
DE2502792C2 (de) * 1975-01-24 1986-01-02 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zum Aufheizen der Hydraulikflüssigkeit eines hydrostatischen Kreislaufs
US4034564A (en) * 1976-01-23 1977-07-12 Caterpillar Tractor Co. Piston pump assembly having load responsive controls
JPS59714B2 (ja) * 1976-12-22 1984-01-07 日立建機株式会社 可変容量形油圧ポンプの吐出量制御回路
US4212596A (en) * 1978-02-23 1980-07-15 Caterpillar Tractor Co. Pressurized fluid supply system

Also Published As

Publication number Publication date
FR2381922A1 (fr) 1978-09-22
DE2858210C2 (de) 1986-04-30
BR7801152A (pt) 1978-09-26
DE2808082A1 (de) 1978-09-07
JPS646348B2 (it) 1989-02-02
CA1104033A (en) 1981-06-30
US4349319A (en) 1982-09-14
IT1101886B (it) 1985-10-07
AU3360578A (en) 1979-08-30
GB1598487A (en) 1981-09-23
FR2381922B1 (it) 1984-06-01
AU521433B2 (en) 1982-04-01
DE2808082C2 (de) 1986-04-24
ZA781021B (en) 1979-02-28
JPS53134201A (en) 1978-11-22

Similar Documents

Publication Publication Date Title
IT1101886B (it) Perfezionamento nei sistemi di pompa a fluido a portata variabile
IT996264B (it) Perfezionamento nelle disposizioni di pompa a portata variabile per sistemi idraulici
IT1079072B (it) Perfezionamento nelle pompe a portata variabile
IT8283336A0 (it) Pompa alternata a velocita'variabile.
IT1032464B (it) Perfezionamento nei sistemi idraulici con pompa a portata variabile
IT1106095B (it) Perfezionamento nei dispositivi di misura di flusso di fluido
IT8124229A0 (it) Dispositivo modificatore del flusso di un fluido.
IT1116805B (it) Perfezionamento nei compressori per refrigeranti a portata variabile
ES494448A0 (es) Perfeccionamientos en un dispositivo de flujo de fluido
IT1019135B (it) Perfezionamento nei sistemi idrau lici con pompa a portata variabile
IT8124230A0 (it) Dispositivo modificatore del flusso di un fluido.
IT1118188B (it) Perfezionamento nelle pompe a portata variabile
BR7705350A (pt) Bomba hidraulica operada a fluido incluindo meios de reducao de ruido
IT990460B (it) Perfezionamento nelle unita di filtro per sistemi a fluido idraulico
IT1099118B (it) Pompa a portata variabile,particolarmente per motori diesel
IT8247565A0 (it) Pompa a stantuffo con portata di mandata regolata
IT7920728A0 (it) Pompa idraulica includente valvolismi per derivare un eccesso di fluido in uscita.
AR229360A1 (es) Bomba suministradora de fluido
IT1047766B (it) Perfezionamento nei sistemi idraulici con pompa a portata variabile
BR7606030A (pt) Bomba de fluido
IT1155468B (it) Dispositivo di comando per una pompa a fluido a portata variabile
IT1124956B (it) Dispositivo proporzionatore di portata di fluido
IT7943501A0 (it) Pompa volumetrica a flusso variabile
ES514979A0 (es) Perfeccionamientos en bombas de fluido rotativas.
FR2469578B1 (fr) Pompe hydraulique a piston alternatif a debit reglable

Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950225