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DE853565C - Master cylinder for hydraulic sensors, especially for vehicle brakes - Google Patents

Master cylinder for hydraulic sensors, especially for vehicle brakes

Info

Publication number
DE853565C
DE853565C DEP14032D DEP0014032D DE853565C DE 853565 C DE853565 C DE 853565C DE P14032 D DEP14032 D DE P14032D DE P0014032 D DEP0014032 D DE P0014032D DE 853565 C DE853565 C DE 853565C
Authority
DE
Germany
Prior art keywords
piston
cylinder
master cylinder
seal
vehicle brakes
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
Application number
DEP14032D
Other languages
German (de)
Inventor
Friedrich Dipl-Ing Beuchle
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.)
Continental Teves AG and Co oHG
Original Assignee
Alfred Teves 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 Alfred Teves GmbH filed Critical Alfred Teves GmbH
Priority to DEP14032D priority Critical patent/DE853565C/en
Application granted granted Critical
Publication of DE853565C publication Critical patent/DE853565C/en
Expired legal-status Critical Current

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
    • B60T11/22—Master control, e.g. master cylinders characterised by being integral with reservoir

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)

Description

Die Erfindung bezieht sich auf Hauptzylinder für hydraulische Geber, insbesondere für Kraftfahrzeugbremsen. Es ist bereits bekannt, den Zylinder mit einer Ausgleichsöffnung zu versehen, über welche der Druckraum im Zylinder mit einem Ausgleichsbehälter in Verbindung steht. Es ist ferner bekannt, den Geberkolben mit einer Abdichtung zu versehen, beispielsweise mit einer Manschettendichtung oder mit einer in einer Kolbennut angeordneten Ringdichtung. Wird die Ausgleichsöffnung durch eine Bohrung in der Zylinderwand gebildet und fährt bei jedem Kolbenhub die Kolbendichtung über diese Öffnung hinweg, so entsteht dadurch ein erheblicher Verschleiß. Das gleiche tritt ein, wenn an Stelle einer Ausgleichsbohrung ein in der Zylinderwand angeordneter Ringraum Verwendung findet, der über einen schmalen Ringspalt die Verbirr dung zum Hauptzylinder herstellt.The invention relates to master cylinders for hydraulic transmitters, especially for motor vehicle brakes. It is already known to use the cylinder to provide a compensation opening, through which the pressure chamber in the cylinder with a Expansion tank is in communication. It is also known to use the master piston to provide a seal, for example with a sleeve seal or with a ring seal arranged in a piston groove. Will the equalization opening formed by a hole in the cylinder wall and moves with each piston stroke Piston seal across this opening results in considerable wear. The same occurs if, instead of a compensating bore, there is one in the cylinder wall arranged annular space is used, the Verbirr over a narrow annular gap production to the master cylinder.

Um das Beschädigen der Kolbendichtung auszuschließen, wird erfindungsgemäß der. Ringraum durch eine mit einer schrägen Aufgleitfläche versehene Erweiterung des Zylinders gebildet, die so groß ist, daß die Kolbendichtung sich in der Ausgangsstellung des Kolbens ungehindert entspannen kann.In order to prevent damage to the piston seal, according to the invention the. Annular space through an extension provided with an inclined sliding surface of the cylinder is formed, which is so large that the piston seal is in the starting position of the piston can relax unhindered.

Ein Ausführungsbeispiel des Erfindungsgegenstandes ist in der Zeichnung dargestellt.An exemplary embodiment of the subject matter of the invention is shown in the drawing shown.

Ein hydraulischer Geberzylinder i steht über eine Ausgleichsbohrung 2 mit einem Nachfüllbehälter 3 in Verbindung. Die Öffnung 2 wird vom Kolben q gesteuert. Zur Abdichtung gegenüber- der Zylinderwand besitzt der Kolben eine Schnurringdichtung 5 annähernd ovalen Querschnittes, die in eine entsprechende Nut nahe der Kolbenvorderseite eingelegt ist und dort durch ihre eigene Spannung festgehalten wird.A hydraulic master cylinder i stands over a compensating bore 2 with a refill container 3 in connection. The port 2 is controlled by the piston q. The piston has a cord ring seal for sealing against the cylinder wall 5 approximately oval cross-section, which is in a corresponding groove near the piston front is inserted and held there by its own tension.

Die Ausgleichsöffnung 2 mündet in eine Ringnut 6, die zwischen einer schrägen Schulter 7 dei Zylinderwand und dem Ende einer in den Zylinder eingesetzten Büchse 8 gebildet wird. Die Büchse ist mit dem Zylinder unter Zwischenfügen einer Dichtung g verschraubt und besitzt eine weitere Dichtung io, und zwar vorzugsweise ebenfalls eine Ringdichtung, um nach dem Überfahren der Ausgleichsöffnung durch die vordere Dichtung 5 das System nach außen hin abzudichten.The compensation opening 2 opens into an annular groove 6 between a inclined shoulder 7 of the cylinder wall and the end of one inserted into the cylinder Sleeve 8 is formed. The sleeve is with the cylinder with the interposition of a Seal g screwed and has another seal io, preferably also a ring seal to get through after driving over the compensation opening the front seal 5 to seal the system to the outside.

Claims (2)

PATENTANSPRÜCHE: i,, Hauptzylinder für hydraulische Geber, insbesondere für Kraftfahrzeugbremsen, mit einer vom Geberkolben gesteuerten, mit dem Flüssigkeitsbehälter in Verbindung stehenden, ringförmigen Ausgleichsöffnung und mit einer in einer Kolbennut angeordneten Ringdichtung, dadurch gekennzeichnet, daß der Ringraum durch eine mit einer schrägen Aufgleitfläche versehene Erweiterung des Zylinders gebildet wird, die so groß ist, daß die Kolbendichtung sich in der Ausgangsstellung des Kolbens ungehindert entspannen kann. PATENT CLAIMS: i ,, Master cylinder for hydraulic transmitters, in particular for motor vehicle brakes, with an annular compensation opening controlled by the master piston, in communication with the fluid container, and with an annular seal arranged in a piston groove, characterized in that the annular space is provided with an oblique sliding surface provided extension of the cylinder is formed, which is so large that the piston seal can relax freely in the initial position of the piston. 2. Hauptzylinder nach Anspruch i, dadurch gekennzeichnet, daß der Ringraum an seinem rückwärtigen -F_nde durch eine in die Zylindererweiterung eingesetzte Buchse begrenzt wird. Angezogene Druckschriften: USA.-Patentschrift Nr, 2 1 i5 383.2. Master cylinder according to claim i, characterized in that the annular space is limited at its rear -F_nde by a socket inserted into the cylinder extension. References: U.S. Patent No. 2 1 i5 383.
DEP14032D 1948-10-02 1948-10-02 Master cylinder for hydraulic sensors, especially for vehicle brakes Expired DE853565C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP14032D DE853565C (en) 1948-10-02 1948-10-02 Master cylinder for hydraulic sensors, especially for vehicle brakes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP14032D DE853565C (en) 1948-10-02 1948-10-02 Master cylinder for hydraulic sensors, especially for vehicle brakes

Publications (1)

Publication Number Publication Date
DE853565C true DE853565C (en) 1952-10-27

Family

ID=7364933

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP14032D Expired DE853565C (en) 1948-10-02 1948-10-02 Master cylinder for hydraulic sensors, especially for vehicle brakes

Country Status (1)

Country Link
DE (1) DE853565C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3156097A (en) * 1963-03-29 1964-11-10 Midland Ross Corp Hydraulic master cylinder
DE1195185B (en) * 1959-09-05 1965-06-16 Fiat Spa Pressure transducers, especially for hydraulic brake actuation systems in motor vehicles
US3473330A (en) * 1966-11-05 1969-10-21 Teves Gmbh Alfred Master cylinder for brake systems and the like

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2115383C3 (en) * 1970-03-31 1982-02-11 Société Financière Française de Licences et Brevets F.F.L.B., Choisy-le-Roi, Val de Marne Method for producing a divisible zip fastener

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2115383C3 (en) * 1970-03-31 1982-02-11 Société Financière Française de Licences et Brevets F.F.L.B., Choisy-le-Roi, Val de Marne Method for producing a divisible zip fastener

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1195185B (en) * 1959-09-05 1965-06-16 Fiat Spa Pressure transducers, especially for hydraulic brake actuation systems in motor vehicles
US3156097A (en) * 1963-03-29 1964-11-10 Midland Ross Corp Hydraulic master cylinder
US3473330A (en) * 1966-11-05 1969-10-21 Teves Gmbh Alfred Master cylinder for brake systems and the like

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