EP0764785A3 - Längsschieberventil mit grossflächigem Ventilsitz - Google Patents

Längsschieberventil mit grossflächigem Ventilsitz Download PDF

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Publication number
EP0764785A3
EP0764785A3 EP96106249A EP96106249A EP0764785A3 EP 0764785 A3 EP0764785 A3 EP 0764785A3 EP 96106249 A EP96106249 A EP 96106249A EP 96106249 A EP96106249 A EP 96106249A EP 0764785 A3 EP0764785 A3 EP 0764785A3
Authority
EP
European Patent Office
Prior art keywords
valve
longitudinal slide
fine control
consumer connection
cone
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
EP96106249A
Other languages
English (en)
French (fr)
Other versions
EP0764785A2 (de
EP0764785B1 (de
Inventor
Hartmut Dipl.-Ing. Sandau (Fh)
Werner Dipl.-Ing. Schumacher
Rainer Dipl.-Ing. Trucksess (Fh)
Holger Dipl.-Ing. Lueues
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0764785A2 publication Critical patent/EP0764785A2/de
Publication of EP0764785A3 publication Critical patent/EP0764785A3/de
Application granted granted Critical
Publication of EP0764785B1 publication Critical patent/EP0764785B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices
    • F15B13/015—Locking-valves or other detent i.e. load-holding devices using an enclosed pilot flow valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)
  • Multiple-Way Valves (AREA)
  • Sliding Valves (AREA)

Abstract

Die Erfindung betrifft ein Längsschieberventil mit zwei in einem Ventilgehäuse koaxial angeordneten, in einigen Bereichen zylindrisch ausgebildeten Längsschiebern (140,147), von denen der erste (140) den Druckmittelstrom zwischen mindestens einem Verbraucheranschluß und mindestens einem Rücklaufanschluß entlang seinem Ventilkegel und seinem Feinsteuerbereich führt. Der zweite Längsschieber (147), der im ersten (140) gelagert und geführt ist, leitet elektromagnetisch angesteuert aus dem Verbraucheranschluß (50) abgezweigtes Druckmittel bei Bedarf für die Öffnungsbewegung des ersten Längsschiebers (140) primär vor eine von dessen Stirnseiten um. Dabei steht ein vor der anderen Stirnseite des ersten Längsschiebers (140) angeordneter Druckraum (135) in der Sperrstellung hydraulisch mit dem Verbraucheranschluß (50) in Verbindung.
Zur Schaffung einer geringeren Flächenpressung im Ventilsitz (146) des ersten Längsschiebers wird der mittlere Durchmesser der kegelmantelförmigen Dichtfläche von dessen Ventilkegel (148) größer ausgelegt als der maximale Durchmesser des nachgeordneten Feinsteuerbereichs. Zusätzlich wird zur Vermeidung von Unstetigkeiten im Ventilregelverhalten der Feinsteuerbereich mit einer relativ großen positiven Überdeckung ausgestattet.
EP96106249A 1995-09-22 1996-04-20 Längsschieberventil mit grossflächigem Ventilsitz Expired - Lifetime EP0764785B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19535223 1995-09-22
DE19535223A DE19535223A1 (de) 1995-09-22 1995-09-22 Längsschieberventil mit großflächigem Ventilsitz

Publications (3)

Publication Number Publication Date
EP0764785A2 EP0764785A2 (de) 1997-03-26
EP0764785A3 true EP0764785A3 (de) 1998-06-03
EP0764785B1 EP0764785B1 (de) 2001-11-28

Family

ID=7772862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96106249A Expired - Lifetime EP0764785B1 (de) 1995-09-22 1996-04-20 Längsschieberventil mit grossflächigem Ventilsitz

Country Status (2)

Country Link
EP (1) EP0764785B1 (de)
DE (2) DE19535223A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1128109A1 (de) 2000-02-22 2001-08-29 Siemens Building Technologies AG Ventil für eine Stelleinrichtung
ATE376624T1 (de) * 2003-04-10 2007-11-15 Bosch Rexroth Ag Stetig verstellbares wegeventil
RU2334906C1 (ru) * 2006-12-26 2008-09-27 Валерий Владимирович Бодров Запорно-регулирующий клапан
RU2552211C1 (ru) * 2014-05-05 2015-06-10 Валерий Владимирович Бодров Запорно-регулирующий клапан
RU2766379C1 (ru) * 2021-07-12 2022-03-15 Артур Олегович Бурков Предохранительное устройство непрямого действия для гидросистем

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4140604A1 (de) * 1991-12-10 1993-06-17 Bosch Gmbh Robert Steuervorrichtung fuer den volumenstrom eines hydraulischen arbeitsmittels

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4140604A1 (de) * 1991-12-10 1993-06-17 Bosch Gmbh Robert Steuervorrichtung fuer den volumenstrom eines hydraulischen arbeitsmittels

Also Published As

Publication number Publication date
EP0764785A2 (de) 1997-03-26
EP0764785B1 (de) 2001-11-28
DE59608303D1 (de) 2002-01-10
DE19535223A1 (de) 1997-03-27

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