DE202004003086U1 - Sealing ring for pressure chamber of unit of brake cylinder and piston, comprising additional rigid sealing lip - Google Patents
Sealing ring for pressure chamber of unit of brake cylinder and piston, comprising additional rigid sealing lip Download PDFInfo
- Publication number
- DE202004003086U1 DE202004003086U1 DE202004003086U DE202004003086U DE202004003086U1 DE 202004003086 U1 DE202004003086 U1 DE 202004003086U1 DE 202004003086 U DE202004003086 U DE 202004003086U DE 202004003086 U DE202004003086 U DE 202004003086U DE 202004003086 U1 DE202004003086 U1 DE 202004003086U1
- Authority
- DE
- Germany
- Prior art keywords
- sealing ring
- sealing
- sealing lip
- static
- ring according
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/16—Master control, e.g. master cylinders
- B60T11/236—Piston sealing arrangements
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
- F15B15/1452—Piston sealings
-
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
- F16J15/3236—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips with at least one lip for each surface, e.g. U-cup packings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2300/00—Special features for couplings or clutches
- F16D2300/08—Details or arrangements of sealings not provided for in group F16D3/84
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft einen Dichtring gemäß dem Oberbegriff von Anspruch 1.The present invention relates to a sealing ring according to the generic term of claim 1.
Ein derartiger Dichtring ist beispielsweise aus
der
Der Erfindung liegt daher die Aufgabe zugrunde, einen Dichtring anzugeben, der beim Befüllen der Bremsanlage den evakuierten Druckraum gegen die Umgebung abdichtet und im Betrieb die Reibung nicht wesentlich vergrößert.The invention is therefore the object based on specifying a sealing ring that when filling the Brake system seals the evacuated pressure chamber from the environment and does not significantly increase the friction during operation.
Die Aufgabe der Erfindung wird gemäß den Merkmalen von Anspruch 1 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen angegeben.The object of the invention is according to the features solved by claim 1. Advantageous embodiments of the invention are specified in the dependent claims.
Der erfindungsgemäße Dichtring zum Abdichten eines Arbeitsfluids in einem Druckraum einer Kolben-Zylindereinheit, die einen Zylinder und einen Kolben umfasst, der axial verschiebbar in dem Zylinder aufgenommen ist, wobei der Dichtring an seinem radial inneren Rand oder seinem radial äußeren Rand ein statisches Dichtelement zur Aufnahme in einer Nut und an seinem gegenüberliegenden Rand, d.h. an seinem radial äußeren Rand bzw. an seinem radial inneren Rand, eine dynamische Dichtlippe aufweist, weist desweiteren an seinem Rand, an dem die dynamische Dichtlippe ausgebildet ist, eine statische Dichtlippe auf.The sealing ring according to the invention for sealing a working fluid in a pressure chamber of a piston-cylinder unit, which comprises a cylinder and a piston which is axially displaceable is received in the cylinder, the sealing ring on its radial inner edge or its radially outer edge a static sealing element for receiving in a groove and on his opposite Edge, i.e. on its radially outer edge or has a dynamic sealing lip on its radially inner edge, further points at its edge, on which the dynamic sealing lip is formed, a static sealing lip.
Die statische Dichtlippe dient zum Abdichten des Druckraums gegen die Umgebungsluft beim Befüllen des Druckraums mit dem Arbeitsfluid. Da beim Befüllen der Kolben in dem Zylinder ruht, kann die Dichtlippe als statische Dichtlippe ausgebildet sein, die im dynamischen Betrieb eine sehr geringe Reibung bewirkt.The static sealing lip is used for Sealing the pressure chamber against the ambient air when filling the Pressure chamber with the working fluid. Because when filling the pistons in the cylinder rests, the sealing lip can be designed as a static sealing lip causes a very low friction in dynamic operation.
Vorzugsweise ist die statische Dichtlippe derart ausgebildet ist, dass ihre Hauptwirkungsrichtung entgegengesetzt zu der Hauptwirkungsrichtung der dynamischen Dichtlippe liegt.The static sealing lip is preferably such is formed that their main direction of action is opposite to the main direction of action of the dynamic sealing lip.
Gemäß einer Ausführung der Erfindung sind die Nut im Kolben und das statische Dichtelement am radial inneren Rand des Dichtrings vorgesehen. Dabei ist vorzugsweise der Außendurchmesser der statischen Dichtlippe größer oder gleich dem Nenninnendruchmesser des Zylinders. Insbesondere ist dabei vorzugsweise der Außendurchmesser der dynamischen Dichtlippe größer als der Außendurchmesser der statischen Dichtlippe ist.According to an execution of the Invention are the groove in the piston and the static sealing element provided on the radially inner edge of the sealing ring. It is preferred the outside diameter the static sealing lip larger or equal to the nominal inside diameter of the cylinder. In particular is preferably the outside diameter the dynamic sealing lip larger than the outside diameter the static sealing lip.
Gemäß einer alternativen Ausführung der Erfindung sind die Nut in der Innenwandung des Zylinders und das statische Dichtelement am radial äußeren Rand des Dichtrings vorgesehen. Dabei ist vorzugsweise der Innendurchmesser der statischen Dichtlippe kleiner oder gleich dem Nennaußendruchmesser des Kolbens. Insbesondere ist dabei vorzugsweise der Innendurchmesser der dynamischen Dichtlippe kleiner als der Innendurchmesser der statischen Dichtlippe.According to an alternative embodiment of the invention are the groove in the inner wall of the cylinder and the static one Sealing element on the radially outer edge provided the sealing ring. The inside diameter is preferred the static sealing lip is less than or equal to the nominal outer diameter of the piston. In particular, the inside diameter is preferred the dynamic sealing lip is smaller than the inside diameter of the static sealing lip.
Gemäß bevorzugten Ausführungen der Erfindung weist die statische Dichtlippe im Querschnitt eine rundliche Kontur auf. Insbesondere vorzugsweise kann die statische Dichtlippe im Querschnitt eine im wesentlichen halbkreisförmige Kontur aufweisen.According to preferred designs the invention has the static sealing lip in cross section rounded contour. In particular, the static Sealing lip in cross section an essentially semicircular contour exhibit.
Weiter kann erfindungsgemäß die dynamische Dichtlippe mit dem statischen Dichtelement im Querschnitt eine im wesentlichen V-förmige Kontur bilden.According to the invention, the dynamic Sealing lip with the static sealing element in cross-section an form an essential V-shaped contour.
Vorzugsweise ist der erfindungsgemäße Dichtring aus einem gegen das Arbeitsfluid beständigen Material ausgebildet ist, und umfasst das Arbeitsfluid eine Hydraulikflüssigkeit, insbesondere eine Bremsflüssigkeit oder ein Medium zur Kupplungsbetätigung.The sealing ring according to the invention is preferably made of a material resistant to the working fluid and the working fluid comprises a hydraulic fluid, especially a brake fluid or a medium for clutch actuation.
Die Erfindung wird anhand des in den Figuren gezeigten Ausführungsbeispiels näher beschrieben.The invention is based on the in the figures shown embodiment described in more detail.
Folgende Bezugszeichen werden verwendet:The following reference symbols are used:
- 1010
- Kolbenringpiston ring
- 1111
- dynamische Dichtlippedynamic sealing lip
- 1212
- statisches Dichtelementstatic sealing element
- 1313
- statische Dichtlippestatic sealing lip
- 1414
- Ausnehmungrecess
- 1515
- Kerbescore
- 1616
- radial äußerer Randradially outer edge
- 1717
- radial innerer Randradial inner edge
- 2020
- Dichtringseal
- 3030
- Kolbenpiston
- 3131
-
Nut
(für Dichtring
10 )Groove (for sealing ring10 ) - 3232
-
Nut
(für Dichtring
20 )Groove (for sealing ring20 )
Der in
Die dynamische Dichtlippe
Die statische Dichtlippe
Die statische Dichtlippe
Die dynamische Dichtlippe
Gemäß einer nicht dargestellten Alternative kann der Dichtring auch in einer in der Zylinderinnenwandung ausgebildeten Nut angeordnet werden. Bei dieser Ausführung sind das statische Dichtelement und die Dichtlippen auf den jeweils radial gegenüberliegenden Rändern des Dichtrings angeordnet, d.h. das statische Dichtelement radial außen und die dynamische und die statische Dichtlippe radial innen. Weitere dem Fachmann naheliegende Alternativen sind denkbar.According to a not shown Alternatively, the sealing ring can also be in the inside of the cylinder trained groove can be arranged. In this version are the static sealing element and the sealing lips on each radial opposite edges of the sealing ring, i.e. the static sealing element radial Outside and the dynamic and static sealing lips radially on the inside. Further Alternatives obvious to the expert are conceivable.
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202004003086U DE202004003086U1 (en) | 2004-03-01 | 2004-03-01 | Sealing ring for pressure chamber of unit of brake cylinder and piston, comprising additional rigid sealing lip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202004003086U DE202004003086U1 (en) | 2004-03-01 | 2004-03-01 | Sealing ring for pressure chamber of unit of brake cylinder and piston, comprising additional rigid sealing lip |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202004003086U1 true DE202004003086U1 (en) | 2004-05-19 |
Family
ID=32336835
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE202004003086U Expired - Lifetime DE202004003086U1 (en) | 2004-03-01 | 2004-03-01 | Sealing ring for pressure chamber of unit of brake cylinder and piston, comprising additional rigid sealing lip |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202004003086U1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103994221A (en) * | 2014-05-26 | 2014-08-20 | 江苏双盈纺织科技有限公司 | Pneumatic valve sealing ring |
CN108422988A (en) * | 2018-03-08 | 2018-08-21 | 浙江工贸职业技术学院 | A kind of two-cylinder type braking Fu Gang mechanisms |
DE102005041418B4 (en) * | 2004-09-17 | 2019-01-03 | Schaeffler Technologies AG & Co. KG | Hydraulic cylinder, in particular master cylinder of a hydraulic clutch release system |
-
2004
- 2004-03-01 DE DE202004003086U patent/DE202004003086U1/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005041418B4 (en) * | 2004-09-17 | 2019-01-03 | Schaeffler Technologies AG & Co. KG | Hydraulic cylinder, in particular master cylinder of a hydraulic clutch release system |
CN103994221A (en) * | 2014-05-26 | 2014-08-20 | 江苏双盈纺织科技有限公司 | Pneumatic valve sealing ring |
CN108422988A (en) * | 2018-03-08 | 2018-08-21 | 浙江工贸职业技术学院 | A kind of two-cylinder type braking Fu Gang mechanisms |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20040624 |
|
R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20070615 |
|
R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20100616 |
|
R158 | Lapse of ip right after 8 years |
Effective date: 20121002 |