DE102011086823A1 - Master cylinder for hydraulic clutch of vehicle, has sealing elements that are provided in housing and piston which is arranged spatially - Google Patents
Master cylinder for hydraulic clutch of vehicle, has sealing elements that are provided in housing and piston which is arranged spatially Download PDFInfo
- Publication number
- DE102011086823A1 DE102011086823A1 DE201110086823 DE102011086823A DE102011086823A1 DE 102011086823 A1 DE102011086823 A1 DE 102011086823A1 DE 201110086823 DE201110086823 DE 201110086823 DE 102011086823 A DE102011086823 A DE 102011086823A DE 102011086823 A1 DE102011086823 A1 DE 102011086823A1
- Authority
- DE
- Germany
- Prior art keywords
- piston
- master cylinder
- housing
- sealing elements
- vehicle
- 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- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/10—Thermosetting resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/12—Thermoplastic materials
Abstract
Description
Die Erfindung betrifft einen Geberzylinder innerhalb einer hydraulischen Strecke zur Kupplungsbetätigung eines Fahrzeuges mit den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to a master cylinder within a hydraulic path for clutch actuation of a vehicle having the features of the preamble of claim 1.
Geberzylinder umfassen im Wesentlichen ein zylindrisches Gehäuse, einen in diesem axial verschiebbar angeordneten Kolben, der einen mit Hydraulikflüssigkeit gefüllten Druckraum begrenzt und bei Betätigung des Geberzylinders mittels einer auf den Kolben wirkenden Kolbenstange axial verschoben und dadurch die Hydraulikflüssigkeit mit Druck beaufschlagt wird, und zumindest einem zwischen Zylindergehäuse und Kolben angeordneten Dichtmittel.Master cylinder essentially comprise a cylindrical housing, a piston arranged axially displaceably therein, which delimits a pressure chamber filled with hydraulic fluid and, upon actuation of the master cylinder, is displaced axially by means of a piston rod acting on the piston, thereby pressurizing the hydraulic fluid, and at least one between Cylinder housing and piston arranged sealant.
Insbesondere bei der Verwendung von Kunststoffen für das Gehäuse bzw. den Kolben tritt das Problem auf, dass, bedingt durch die Schwenkbewegungen des Kolbens, während dessen Betätigung, Querkräfte in den Kolben eingeleitet werden. Diese führen zu einem abrasiven Verschleiß der Kolbenoberfläche und des Gehäuses, wodurch bei einem glasfaserverstärkten Kunststoff Glasfasern freigelegt werden, die stark abrasiv auf die Sekundärdichtung wirken.In particular, in the use of plastics for the housing or the piston, the problem arises that, due to the pivoting movements of the piston, during its actuation, transverse forces are introduced into the piston. These lead to abrasive wear of the piston surface and the housing, whereby fiberglass-reinforced plastic exposes glass fibers that have a highly abrasive effect on the secondary seal.
Außerdem führt die axiale Bewegung des Kolbens im Gehäuse zwischen diesem und den Dichtungen oftmals zu Quietschgeräuschen.In addition, the axial movement of the piston in the housing between this and the seals often leads to squeaking noises.
Aus diesem Grunde wird in der
Allerdings ist die Verwendung von Duroplast als Material für den Kolben sehr kostenintensiv.However, the use of thermosetting material as the material for the piston is very expensive.
Daher besteht die Aufgabe der Erfindung darin, einen Geberzylinder mit einem kostengünstigen Kolben vorzuschlagen, bei dem ohne Zuhilfenahme eines zusätzlichen Bauteils einer Abrasion zwischen den Dicht- bzw. Laufflächen entgegen gewirkt wird, und mit dem die Quietschgeräusche an diesen Laufflächen vermieden werden.Therefore, the object of the invention is to propose a master cylinder with a cost-effective piston, in which without the aid of an additional component of an abrasion between the sealing or running surfaces is counteracted, and with which the squeaking noises are avoided at these treads.
Diese Aufgabe wird mit einem Geberzylinder mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen dieser Erfindung ergeben sich aus den Unteransprüchen.This object is achieved with a master cylinder having the features of claim 1. Advantageous embodiments of this invention will become apparent from the dependent claims.
Danach besteht der Geberzylinder im Wesentlichen aus einem zylindrischen Gehäuse, in dem ein Kolben axial verschiebbar angeordnet ist, der einen mit einer Hydraulikflüssigkeit gefüllten Druckraum begrenzt und bei Betätigung des Geberzylinders mittels einer auf den Kolben wirkenden Kolbenstange axial verschoben wird. Dadurch wird die Hydraulikflüssigkeit mit Druck beaufschlagt. Zwischen dem Gehäuse und dem Kolben sind voneinander beabstandete Dichtmittel vorgesehen, wobei das eine Dichtmittel am Gehäuse anliegt und das andere Dichtmittel mit dem Kolben verbunden ist. Erfindungsgemäß besteht der Kolben aus einem Grundkörper, der von einer Hülle umgeben ist.Thereafter, the master cylinder consists essentially of a cylindrical housing in which a piston is arranged axially displaceable, which limits a filled with a hydraulic fluid pressure chamber and is displaced axially upon actuation of the master cylinder by means of a piston rod acting on the piston. As a result, the hydraulic fluid is pressurized. Between the housing and the piston spaced-apart sealing means are provided, wherein the one sealing means bears against the housing and the other sealing means is connected to the piston. According to the invention, the piston consists of a base body which is surrounded by a shell.
In einer vorteilhaften Ausgestaltung der Erfindung besteht der Grundkörper aus einem Standardkunststoff, wie PA66GF35, während für die Hülle des Kolbens Duroplast Verwendung findet.In an advantageous embodiment of the invention, the base body of a standard plastic, such as PA66GF35, while for the shell of the piston thermoset is used.
Dabei ist es besonders vorteilhaft, die Hülle mittels Umspritzen auf den Grundkörper aufzubringen.It is particularly advantageous to apply the envelope by means of encapsulation on the base body.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels und zugehöriger Zeichnungen näher erläutert.The invention will be explained in more detail with reference to an embodiment and associated drawings.
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BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- GeberzylinderMaster cylinder
- 22
- Gehäusecasing
- 33
- Kolbenpiston
- 3a3a
- Grundkörperbody
- 3b3b
- Hülleshell
- 44
- Sekundärdichtungsecondary seal
- 55
- Primärdichtungprimary seal
- 66
- Führungshülseguide sleeve
- 77
- Druckraumpressure chamber
- 88th
- Kolbenstangepiston rod
- 99
- Haltemittel/HalteklammerHolding means / retaining clip
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 10327437 A1 [0005] DE 10327437 A1 [0005]
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110086823 DE102011086823A1 (en) | 2010-12-20 | 2011-11-22 | Master cylinder for hydraulic clutch of vehicle, has sealing elements that are provided in housing and piston which is arranged spatially |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010055271 | 2010-12-20 | ||
DE102010055271.2 | 2010-12-20 | ||
DE201110086823 DE102011086823A1 (en) | 2010-12-20 | 2011-11-22 | Master cylinder for hydraulic clutch of vehicle, has sealing elements that are provided in housing and piston which is arranged spatially |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102011086823A1 true DE102011086823A1 (en) | 2012-06-21 |
Family
ID=46512469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201110086823 Withdrawn DE102011086823A1 (en) | 2010-12-20 | 2011-11-22 | Master cylinder for hydraulic clutch of vehicle, has sealing elements that are provided in housing and piston which is arranged spatially |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102011086823A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019154579A1 (en) * | 2018-02-09 | 2019-08-15 | Vat Holding Ag | Piston-cylinder unit |
WO2021189089A1 (en) * | 2020-03-24 | 2021-09-30 | Hirtenberger Automotive Safety Gmbh & Co Kg | Pyrotechnic actuator |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10327437A1 (en) | 2002-06-24 | 2004-01-22 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Hydraulic system e.g. for operating a motor vehicle clutch has emitter cylinder with piston made from thermosetting material |
-
2011
- 2011-11-22 DE DE201110086823 patent/DE102011086823A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10327437A1 (en) | 2002-06-24 | 2004-01-22 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Hydraulic system e.g. for operating a motor vehicle clutch has emitter cylinder with piston made from thermosetting material |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019154579A1 (en) * | 2018-02-09 | 2019-08-15 | Vat Holding Ag | Piston-cylinder unit |
JP2021513034A (en) * | 2018-02-09 | 2021-05-20 | バット ホールディング アーゲー | Piston-cylinder unit |
US11401955B2 (en) | 2018-02-09 | 2022-08-02 | Vat Holding Ag | Piston-cylinder unit |
JP7372246B2 (en) | 2018-02-09 | 2023-10-31 | バット ホールディング アーゲー | piston-cylinder unit |
WO2021189089A1 (en) * | 2020-03-24 | 2021-09-30 | Hirtenberger Automotive Safety Gmbh & Co Kg | Pyrotechnic actuator |
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Legal Events
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R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120827 Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120827 |
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R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20140214 Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20140214 |
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R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20150407 |
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R005 | Application deemed withdrawn due to failure to request examination |