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EP1180598A3 - Valve assembly - Google Patents

Valve assembly Download PDF

Info

Publication number
EP1180598A3
EP1180598A3 EP01119038A EP01119038A EP1180598A3 EP 1180598 A3 EP1180598 A3 EP 1180598A3 EP 01119038 A EP01119038 A EP 01119038A EP 01119038 A EP01119038 A EP 01119038A EP 1180598 A3 EP1180598 A3 EP 1180598A3
Authority
EP
European Patent Office
Prior art keywords
pressure
valve
relief valve
pressure relief
valve assembly
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
EP01119038A
Other languages
German (de)
French (fr)
Other versions
EP1180598B1 (en
EP1180598A2 (en
Inventor
Jörg Dantlgraber
Reiner Püschel
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.)
Bosch Rexroth AG
Original Assignee
Bosch Rexroth AG
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 Bosch Rexroth AG filed Critical Bosch Rexroth AG
Publication of EP1180598A2 publication Critical patent/EP1180598A2/en
Publication of EP1180598A3 publication Critical patent/EP1180598A3/en
Application granted granted Critical
Publication of EP1180598B1 publication Critical patent/EP1180598B1/en
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Safety Valves (AREA)

Abstract

Offenbart ist eine Ventilanordnung zur Versorgung eines hydraulischen Verbrauchers mit einem Druckmittel, wobei über ein Vorspannventil ein zur Verstellung einer Verstellpumpe erforderlicher Mindestdruck einstellbar ist. Der maximale Verbraucherdruck wird über ein Druckbegrenzungsventil begrenzt, wobei dem Druckbegrenzungsventil eine Pilotventilanordnung zugeordnet ist, über die der in Schließrichtung eines Staukörpers des Druckbegrenzungsventils wirksame Steuerdruck veränderbar ist.

Figure 00000001
What is disclosed is a valve arrangement for supplying a hydraulic consumer with a pressure medium, a minimum pressure required for adjusting a variable displacement pump being adjustable via a preload valve. The maximum consumer pressure is limited by a pressure relief valve, the pressure relief valve being assigned a pilot valve arrangement, via which the control pressure effective in the closing direction of a bluff body of the pressure relief valve can be changed.
Figure 00000001
EP20010119038 2000-08-17 2001-08-07 Valve assembly Expired - Lifetime EP1180598B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10040737A DE10040737A1 (en) 2000-08-17 2000-08-17 Valve arrangement for pressure medium supply hydraulic consumer has consumer pressure limitation valve with pilot valve unit
DE10040737 2000-08-17

Publications (3)

Publication Number Publication Date
EP1180598A2 EP1180598A2 (en) 2002-02-20
EP1180598A3 true EP1180598A3 (en) 2003-04-16
EP1180598B1 EP1180598B1 (en) 2006-11-08

Family

ID=7653094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010119038 Expired - Lifetime EP1180598B1 (en) 2000-08-17 2001-08-07 Valve assembly

Country Status (2)

Country Link
EP (1) EP1180598B1 (en)
DE (2) DE10040737A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112007001972A5 (en) * 2006-09-14 2009-05-28 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Hydraulic system for supplying a hydraulic fluid to a consumer
DE102016122392A1 (en) 2016-11-21 2018-05-24 Schwing Gmbh Slurry pump with adjustable limitation of the delivery pressure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2120125A1 (en) * 1971-04-24 1972-11-16 Robert Bosch Gmbh, 7000 Stuttgart Hydraulic system
GB1443799A (en) * 1972-10-11 1976-07-28 Kloeckner Humboldt Deutz Ag Valve assembly
DE4211551A1 (en) * 1992-04-06 1993-10-07 Rexroth Mannesmann Gmbh Adjustable pump with cartridge type valves - has pressure limiting valve and pressure switching valve incorporated as single unit
DE4334167A1 (en) * 1993-10-07 1995-04-13 Rexroth Mannesmann Gmbh Hydraulic system for loading a hydraulic consumer with a regulated consumer pressure and choke valve in particular for use in such a hydraulic system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL169628C (en) * 1971-06-29 1982-08-02 Ind En Handelmaatschappij Kopp CONTROL DEVICE FOR LAST-DEPENDENT CONTROL OF HYDRAULIC DRIVE DEVICES.
DE3603988C2 (en) * 1984-11-28 1994-12-08 Zahnradfabrik Friedrichshafen Control device for two hydraulic actuating devices, each of which is supplied by a high-pressure pump via a current branch
DE4335495A1 (en) * 1992-10-27 1994-04-28 Bosch Gmbh Robert Gritter or sander vehicle hydraulic appts. control device - measures pressure and revs. rate of hydromotor and controls valve to provide correct pressure of fluid
JPH10131751A (en) * 1996-10-29 1998-05-19 Aisin Seiki Co Ltd Tandem pump device
DE19729693A1 (en) * 1997-07-11 1999-01-14 Claas Industrietechnik Gmbh Hydraulic control for switchable connecting elements, in particular for an externally switched clutch on a drive motor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2120125A1 (en) * 1971-04-24 1972-11-16 Robert Bosch Gmbh, 7000 Stuttgart Hydraulic system
GB1443799A (en) * 1972-10-11 1976-07-28 Kloeckner Humboldt Deutz Ag Valve assembly
DE4211551A1 (en) * 1992-04-06 1993-10-07 Rexroth Mannesmann Gmbh Adjustable pump with cartridge type valves - has pressure limiting valve and pressure switching valve incorporated as single unit
DE4334167A1 (en) * 1993-10-07 1995-04-13 Rexroth Mannesmann Gmbh Hydraulic system for loading a hydraulic consumer with a regulated consumer pressure and choke valve in particular for use in such a hydraulic system

Also Published As

Publication number Publication date
DE50111399D1 (en) 2008-03-13
DE10040737A1 (en) 2002-02-28
EP1180598B1 (en) 2006-11-08
EP1180598A2 (en) 2002-02-20

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