IT1011824B - Dispositivo di alimentazione di fluido sotto pressione comprenden te una valvola di sottrazione del la potenza di azionamento di una pompa a portata costante dalla po tenza di azionamento di una pompa a portata variabile - Google Patents

Dispositivo di alimentazione di fluido sotto pressione comprenden te una valvola di sottrazione del la potenza di azionamento di una pompa a portata costante dalla po tenza di azionamento di una pompa a portata variabile

Info

Publication number
IT1011824B
IT1011824B IT68392/74A IT6839274A IT1011824B IT 1011824 B IT1011824 B IT 1011824B IT 68392/74 A IT68392/74 A IT 68392/74A IT 6839274 A IT6839274 A IT 6839274A IT 1011824 B IT1011824 B IT 1011824B
Authority
IT
Italy
Prior art keywords
driving power
pump
subtracting
valve
under pressure
Prior art date
Application number
IT68392/74A
Other languages
English (en)
Italian (it)
Inventor
M Capelle
C Pinson
Original Assignee
Poclain Sa
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 Poclain Sa filed Critical Poclain Sa
Application granted granted Critical
Publication of IT1011824B publication Critical patent/IT1011824B/it

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/26—Power control functions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
IT68392/74A 1973-05-28 1974-05-03 Dispositivo di alimentazione di fluido sotto pressione comprenden te una valvola di sottrazione del la potenza di azionamento di una pompa a portata costante dalla po tenza di azionamento di una pompa a portata variabile IT1011824B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7319331A FR2232226A5 (de) 1973-05-28 1973-05-28

Publications (1)

Publication Number Publication Date
IT1011824B true IT1011824B (it) 1977-02-10

Family

ID=9120096

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68392/74A IT1011824B (it) 1973-05-28 1974-05-03 Dispositivo di alimentazione di fluido sotto pressione comprenden te una valvola di sottrazione del la potenza di azionamento di una pompa a portata costante dalla po tenza di azionamento di una pompa a portata variabile

Country Status (8)

Country Link
US (1) US3897174A (de)
JP (1) JPS5021188A (de)
BE (1) BE815563A (de)
DE (1) DE2419529A1 (de)
ES (1) ES426713A1 (de)
FR (1) FR2232226A5 (de)
GB (1) GB1427105A (de)
IT (1) IT1011824B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2271416B1 (de) * 1974-05-15 1983-08-19 Poclain Sa
US3962870A (en) * 1975-04-23 1976-06-15 International Harvester Company Variable volume dual pump circuit
DE2603563C2 (de) * 1976-01-30 1986-02-20 Linde Ag, 6200 Wiesbaden Steuereinrichtung für ein aus mindestens zwei Pumpen bestehendes Pumpen-Aggregat
US4212596A (en) * 1978-02-23 1980-07-15 Caterpillar Tractor Co. Pressurized fluid supply system
EP0127027B1 (de) * 1983-05-30 1988-03-09 BBC Brown Boveri AG Elektrohydraulischer Stellantrieb für Turbinenventile
DE3323278C2 (de) * 1983-06-28 1986-05-22 Hydromatik GmbH, 7915 Elchingen Regelvorrichtung für mehrere aus hydrostatischen Getrieben bestehende Antriebsaggregate
US4613286A (en) * 1984-12-31 1986-09-23 Kabushiki Kaisha Komatsu Seisakusho Constant torque control system for a variable displacement pump or pumps
US20070217856A1 (en) * 2006-03-20 2007-09-20 Kott John M Portable paint system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2316926A (en) * 1941-03-11 1943-04-20 Vickers Inc Power transmission
US3355994A (en) * 1966-01-13 1967-12-05 New York Air Brake Co Hydraulic system
US3561327A (en) * 1969-06-09 1971-02-09 Eaton Yale & Towne Flow divider and flow-dividing system
US3575000A (en) * 1969-10-21 1971-04-13 Caterpillar Tractor Co High pressure implement hydraulic circuit
DE2038968C3 (de) * 1970-08-05 1978-09-07 Ludwig 7917 Voehringen Wagenseil Leistungs-Regelvorrichtung für zwei oder mehrere Hydropumpen

Also Published As

Publication number Publication date
US3897174A (en) 1975-07-29
ES426713A1 (es) 1976-08-01
BE815563A (fr) 1974-09-16
JPS5021188A (de) 1975-03-06
GB1427105A (en) 1976-03-10
FR2232226A5 (de) 1974-12-27
DE2419529A1 (de) 1974-12-19

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