EP1801423A3 - Master cylinder - Google Patents

Master cylinder Download PDF

Info

Publication number
EP1801423A3
EP1801423A3 EP06025903A EP06025903A EP1801423A3 EP 1801423 A3 EP1801423 A3 EP 1801423A3 EP 06025903 A EP06025903 A EP 06025903A EP 06025903 A EP06025903 A EP 06025903A EP 1801423 A3 EP1801423 A3 EP 1801423A3
Authority
EP
European Patent Office
Prior art keywords
pressure chamber
piston
sealing
primary pressure
primary
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.)
Withdrawn
Application number
EP06025903A
Other languages
German (de)
French (fr)
Other versions
EP1801423A2 (en
Inventor
Stephane Rocquet
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.)
Schaeffler Buehl Verwaltungs GmbH
LuK Lamellen und Kupplungsbau GmbH
Original Assignee
LuK Lamellen und Kupplungsbau Beteiligungs KG
LuK Lamellen und Kupplungsbau 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 LuK Lamellen und Kupplungsbau Beteiligungs KG, LuK Lamellen und Kupplungsbau GmbH filed Critical LuK Lamellen und Kupplungsbau Beteiligungs KG
Publication of EP1801423A2 publication Critical patent/EP1801423A2/en
Publication of EP1801423A3 publication Critical patent/EP1801423A3/en
Withdrawn legal-status Critical Current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
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/06—Details
    • F15B7/08—Input units; Master units
    • 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
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/06—Details
    • F15B7/10—Compensation of the liquid content in a system

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Sealing Devices (AREA)

Abstract

Die Erfindung betrifft einen Geberzylinder, unter Verwendung eines in einem Gehäuse (1) axial verschiebbaren Kolbens (2), wobei der Kolben einen auf einer Primärseite des Geberzylinders befindlichen, mit einem Druckmittel befüllbaren Primärdruckraum (6) begrenzt, wobei ein Sekundärdruckraum (7) des Geberzylinder mit einer Nachlaufleitung (4) in Verbindung steht und mit einer zwischen dem Kolben und dem Gehäuse wirksamen Dichtung (3) der Primärdruckraum gegenüber dem Sekundärdruckraum abdichtbar ist und in einer Neutrallage des Kolbens zwischen Primärdruckraum und Sekundärdruckraum eine Strömungsverbindung vom Sekundärdruckraum zum Primärdruckraum herstellbar ist, wobei die Dichtung eine innere dynamische Dichtlippe (3.1), die gegen einen ersten Außendurchmesser des Kolbens abdichtet, und eine äußere statische Dichtlippe (3.2), die gegen den Innendurchmesser des Gehäuses abdichtet, aufweist. Erfindungsgemäß ist der Kolben (2) an seinem in Richtung zum Primärdruckraum (6) weisenden Ende, auf welchem die Dichtung (3) sitzt, mit einer oder mehreren Ausnehmungen (9) versehen, ist zwischen den beiden Dichtlippen ein mit Durchbrüchen versehener Vorsprung (11) eines Dichtungsanschlages eingreifbar, reicht von der in Richtung zur Dichtung weisenden Seite des Dichtungsanschlages zum Primärdruckraum (6) eine Durchströmöffnung, ist in Neutrallage des Kolbens bei einem im Primärdruckraum geringeren Druck als im Sekundärraum die dynamische Dichtlippe (3.1) vom Außendurchmesser des Kolbens abhebbar, so dass über die Ausnehmungen im Kolben, die Durchbrüche im Vorsprung des Dichtungsanschlages und die Durchströmöffnung eine druckausgleichende Verbindung zwischen Primärdruckraum (6) und Sekundärdruckraum (7) gebildet wird.

Figure imgaf001
The invention relates to a master cylinder, using a in a housing (1) axially displaceable piston (2), wherein the piston is located on a primary side of the master cylinder, can be filled with a pressure medium primary pressure chamber (6), wherein a secondary pressure chamber (7) of the Master cylinder with a follow-up line (4) is in communication and with a effective between the piston and the housing seal (3) the primary pressure chamber against the secondary pressure chamber is sealed and in a neutral position of the piston between the primary pressure chamber and the secondary pressure chamber, a flow connection from the secondary pressure chamber to the primary pressure chamber can be produced the seal having an inner dynamic sealing lip (3.1) sealing against a first outer diameter of the piston and an outer static sealing lip (3.2) sealing against the inner diameter of the housing. According to the invention, the piston (2) is provided with one or more recesses (9) at its end pointing in the direction of the primary pressure chamber (6), on which the seal (3) sits, between the two sealing lips a projection (11) provided with openings ) of a sealing stop engageable, extends from the pointing in the direction of the seal side of the sealing stop to the primary pressure chamber (6) a flow, is in the neutral position of the piston at a lower pressure in the primary pressure chamber than the secondary chamber, the dynamic sealing lip (3.1) from the outer diameter of the piston, so that on the recesses in the piston, the openings in the projection of the sealing stop and the flow opening a pressure-equalizing connection between the primary pressure chamber (6) and secondary pressure chamber (7) is formed.
Figure imgaf001
EP06025903A 2005-12-23 2006-12-14 Master cylinder Withdrawn EP1801423A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005062110 2005-12-23

Publications (2)

Publication Number Publication Date
EP1801423A2 EP1801423A2 (en) 2007-06-27
EP1801423A3 true EP1801423A3 (en) 2009-09-30

Family

ID=37864518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06025903A Withdrawn EP1801423A3 (en) 2005-12-23 2006-12-14 Master cylinder

Country Status (1)

Country Link
EP (1) EP1801423A3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008063241A1 (en) * 2008-12-16 2010-06-17 Gustav Magenwirth Gmbh & Co. Kg master cylinder

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29822705U1 (en) * 1998-12-21 1999-02-18 Schaeffler Waelzlager Ohg Master cylinder for vehicle hydraulics
WO2001050044A1 (en) * 2000-01-05 2001-07-12 Kongsberg Automotive Asa Pressure fluid-delivery device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29822705U1 (en) * 1998-12-21 1999-02-18 Schaeffler Waelzlager Ohg Master cylinder for vehicle hydraulics
WO2001050044A1 (en) * 2000-01-05 2001-07-12 Kongsberg Automotive Asa Pressure fluid-delivery device

Also Published As

Publication number Publication date
EP1801423A2 (en) 2007-06-27

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