EP1174620A3 - Staudruckschaltung - Google Patents

Staudruckschaltung Download PDF

Info

Publication number
EP1174620A3
EP1174620A3 EP01111007A EP01111007A EP1174620A3 EP 1174620 A3 EP1174620 A3 EP 1174620A3 EP 01111007 A EP01111007 A EP 01111007A EP 01111007 A EP01111007 A EP 01111007A EP 1174620 A3 EP1174620 A3 EP 1174620A3
Authority
EP
European Patent Office
Prior art keywords
pressure
pump
dynamic pressure
delivery
pressure control
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
EP01111007A
Other languages
English (en)
French (fr)
Other versions
EP1174620A2 (de
EP1174620B1 (de
Inventor
Reinhold Schniederjan
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.)
Brueninghaus Hydromatik GmbH
Original Assignee
Brueninghaus Hydromatik 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 Brueninghaus Hydromatik GmbH filed Critical Brueninghaus Hydromatik GmbH
Publication of EP1174620A2 publication Critical patent/EP1174620A2/de
Publication of EP1174620A3 publication Critical patent/EP1174620A3/de
Application granted granted Critical
Publication of EP1174620B1 publication Critical patent/EP1174620B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04B49/08—Regulating by delivery pressure
    • 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
    • F04B2201/00—Pump parameters
    • F04B2201/12—Parameters of driving or driven means
    • F04B2201/1205—Position of a non-rotating inclined plate
    • F04B2201/12051—Angular position
    • 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
    • F04B2205/00—Fluid parameters
    • F04B2205/16—Opening or closing of a valve in a circuit
    • 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
    • F04B2205/00—Fluid parameters
    • F04B2205/17—Opening width of a throttling device
    • F04B2205/172—Opening width of a throttling device after the pump outlet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Safety Valves (AREA)
  • Control Of Transmission Device (AREA)

Abstract

Eine Staudruckschaltung weist eine hydraulische Pumpe (50) zum Fördern eines Druckfluids, eine Fördervolumenregelungseinrichtung (61, 1), die das Fördervolumen der Pumpe (50) in Abhängigkeit von deren Förderdruck regelt, und ein Stellventil (80) auf, das zwischen die Pumpe (50) und einem Verbraucher (81) geschaltet ist. Dabei begrenzt bei einer Stellung des Stellventils (80), in der die Pumpe (50) auf Umlauf geschaltet ist, die Fördervolumenregelungseinrichtung (61, 1) den Förderdruck auf einen vorgegebenen Restdruck. Ferner ist ein in den Umlauf geschaltetes Vorspannventil (100) vorgesehen, das zum Erzeugen eines Staudrucks ab einem Druck öffnet, der größer als der vorgegebene Restdruck ist.
EP20010111007 2000-07-21 2001-05-07 Staudruckschaltung Expired - Lifetime EP1174620B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10035631 2000-07-21
DE2000135631 DE10035631C2 (de) 2000-07-21 2000-07-21 Nullastschaltung

Publications (3)

Publication Number Publication Date
EP1174620A2 EP1174620A2 (de) 2002-01-23
EP1174620A3 true EP1174620A3 (de) 2003-11-26
EP1174620B1 EP1174620B1 (de) 2006-06-28

Family

ID=7649792

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010111007 Expired - Lifetime EP1174620B1 (de) 2000-07-21 2001-05-07 Staudruckschaltung

Country Status (2)

Country Link
EP (1) EP1174620B1 (de)
DE (2) DE10035631C2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020001713A1 (de) * 2020-03-13 2021-09-16 Hydac Mobilhydraulik Gmbh Ansteuervorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3541750A1 (de) * 1984-11-26 1986-06-12 Nippondenso Co., Ltd., Kariya, Aichi Volumensteuernde pumpvorrichtung
US5117634A (en) * 1989-04-03 1992-06-02 Paul Pleiger Maschinenfabrik Gmbh & Co. Kg Apparatus for controlling the operation of hydraulic motors
DE19653165C1 (de) * 1996-12-19 1998-04-02 Brueninghaus Hydromatik Gmbh Verstelleinrichtung zur Verstellung des Fördervolumens einer Axialkolbenpumpe
US6048177A (en) * 1995-10-17 2000-04-11 Brueninghaus Hydromatik Gmbh Output regulation with load sensing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3541750A1 (de) * 1984-11-26 1986-06-12 Nippondenso Co., Ltd., Kariya, Aichi Volumensteuernde pumpvorrichtung
US5117634A (en) * 1989-04-03 1992-06-02 Paul Pleiger Maschinenfabrik Gmbh & Co. Kg Apparatus for controlling the operation of hydraulic motors
US6048177A (en) * 1995-10-17 2000-04-11 Brueninghaus Hydromatik Gmbh Output regulation with load sensing
DE19653165C1 (de) * 1996-12-19 1998-04-02 Brueninghaus Hydromatik Gmbh Verstelleinrichtung zur Verstellung des Fördervolumens einer Axialkolbenpumpe

Also Published As

Publication number Publication date
DE50110312D1 (de) 2006-08-10
EP1174620A2 (de) 2002-01-23
DE10035631C2 (de) 2003-01-30
DE10035631A1 (de) 2002-02-07
EP1174620B1 (de) 2006-06-28

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