IT1255886B - Regolatore per una pompa idraulica regolabile - Google Patents

Regolatore per una pompa idraulica regolabile

Info

Publication number
IT1255886B
IT1255886B ITMI922390A ITMI922390A IT1255886B IT 1255886 B IT1255886 B IT 1255886B IT MI922390 A ITMI922390 A IT MI922390A IT MI922390 A ITMI922390 A IT MI922390A IT 1255886 B IT1255886 B IT 1255886B
Authority
IT
Italy
Prior art keywords
regulator
hydraulic pump
adjustable hydraulic
servo device
control pressure
Prior art date
Application number
ITMI922390A
Other languages
English (en)
Original Assignee
Rexroth Mannesmann Gmbh
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 Rexroth Mannesmann Gmbh filed Critical Rexroth Mannesmann Gmbh
Publication of ITMI922390A0 publication Critical patent/ITMI922390A0/it
Publication of ITMI922390A1 publication Critical patent/ITMI922390A1/it
Application granted granted Critical
Publication of IT1255886B publication Critical patent/IT1255886B/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
    • F04B49/12—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 by varying the length of stroke of the working members
    • F04B49/123—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 by varying the length of stroke of the working members by changing the eccentricity of one element relative to another element
    • F04B49/128—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 by varying the length of stroke of the working members by changing the eccentricity of one element relative to another element by changing the eccentricity of the cylinders, e.g. by moving a cylinder block
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/06—Control
    • F04B1/07—Control by varying the relative eccentricity between two members, e.g. a cam and a drive shaft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

L'invenzione riguarda un regolatore per una pompa idraulica, regolabile, la cui portata è variabile mediante un servodispositivo e con almeno due regolatori azionanti il servodispositivo, essendo previsto almeno un elemento di commutazione idraulico, che collega automaticamente il regolatore al servodispositivo, che appronta volta per volta la pressione di comando più alta o la pressione di comando più bassa.
ITMI922390A 1991-10-25 1992-10-19 Regolatore per una pompa idraulica regolabile IT1255886B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4135277A DE4135277C2 (de) 1991-10-25 1991-10-25 Regeleinrichtung für eine verstellbare Hydraulikpumpe

Publications (3)

Publication Number Publication Date
ITMI922390A0 ITMI922390A0 (it) 1992-10-19
ITMI922390A1 ITMI922390A1 (it) 1994-04-19
IT1255886B true IT1255886B (it) 1995-11-17

Family

ID=6443432

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI922390A IT1255886B (it) 1991-10-25 1992-10-19 Regolatore per una pompa idraulica regolabile

Country Status (4)

Country Link
US (1) US5326230A (it)
JP (1) JPH05202858A (it)
DE (1) DE4135277C2 (it)
IT (1) IT1255886B (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4115606A1 (de) * 1991-05-14 1992-11-19 Putzmeister Maschf Ueberlast-schutzeinrichtung fuer einen als brennkraftmaschine ausgebildeten antriebsmotor einer hauptpumpe eines hydraulischen druckversorgungsaggregats
DE4313597B4 (de) * 1993-04-26 2005-09-15 Linde Ag Verfahren zum Betreiben einer verstellbaren hydrostatischen Pumpe und dafür ausgebildetes hydrostatisches Antriebssystem
US5873244A (en) * 1997-11-21 1999-02-23 Caterpillar Inc. Positive flow control system
ITBO20030528A1 (it) * 2003-09-12 2005-03-13 Pierburg Spa Impianto di pompaggio utilizzante una pompa a palette
US7874151B2 (en) * 2008-03-17 2011-01-25 Caterpillar Inc Dual mode hydraulic circuit control and method
US10087960B2 (en) 2013-10-29 2018-10-02 Raven Industries, Inc. Hydraulic displacement control system
EP3311034B1 (en) * 2015-06-16 2019-11-13 Volvo Construction Equipment AB Load sensing hydraulic system for a working machine

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214911A (en) * 1963-06-04 1965-11-02 Dowty Hydraulics Units Ltd Hydraulic apparatus
DE2413295B2 (de) * 1974-03-20 1978-02-02 Robert Bosch Gmbh, 7000 Stuttgart Regeleinrichtung fuer eine verstellbare pumpe
US4034564A (en) * 1976-01-23 1977-07-12 Caterpillar Tractor Co. Piston pump assembly having load responsive controls
US4065922A (en) * 1976-08-23 1978-01-03 Hyster Company Load lifting and lowering control system
US4129987A (en) * 1977-10-17 1978-12-19 Gresen Manufacturing Company Hydraulic control system
US4244678A (en) * 1978-06-26 1981-01-13 Kabushiki Kaisha Komatsu Seisakusho Displacement control system for variable displacement pump
US4401182A (en) * 1980-12-10 1983-08-30 Sundstrand Corporation Variable displacement hydraulic drive with disconnect
US4408453A (en) * 1981-01-16 1983-10-11 General Signal Corporation Hydraulic control system
DE3410071C2 (de) * 1984-03-20 1994-06-01 Bosch Gmbh Robert Hydraulikanlage
DE3420990C2 (de) * 1984-06-06 1994-10-27 Bosch Gmbh Robert Hydraulikanlage
US4710106A (en) * 1984-11-26 1987-12-01 Nippondenso Co., Ltd. Volume controlling device for variable volume pump
US5101628A (en) * 1990-01-22 1992-04-07 Shin Caterpillar Mitsubishi Ltd. Energy regenerative circuit in a hydraulic apparatus
IT1242642B (it) * 1990-04-17 1994-05-16 Alfa Wassermann Spa Formulazioni iniettabili contenenti naproxen sale sodico.
NL9001154A (nl) * 1990-05-17 1991-12-16 Ccm Beheer Bv Inrichting voor het vormen van een snede in borst en buik van een slachtdierkarkas.

Also Published As

Publication number Publication date
ITMI922390A0 (it) 1992-10-19
JPH05202858A (ja) 1993-08-10
DE4135277C2 (de) 1994-12-22
DE4135277A1 (de) 1993-04-29
US5326230A (en) 1994-07-05
ITMI922390A1 (it) 1994-04-19

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971028