DE840800C - Master cylinder for hydraulic brakes of vehicles, especially automobiles - Google Patents
Master cylinder for hydraulic brakes of vehicles, especially automobilesInfo
- Publication number
- DE840800C DE840800C DET3550A DET0003550A DE840800C DE 840800 C DE840800 C DE 840800C DE T3550 A DET3550 A DE T3550A DE T0003550 A DET0003550 A DE T0003550A DE 840800 C DE840800 C DE 840800C
- Authority
- DE
- Germany
- Prior art keywords
- piston
- cylinder
- master cylinder
- vehicles
- annular space
- 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
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
- B60T11/165—Single master cylinders for pressurised systems
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 Bremsen von Fahrzeugen, insbesondere Kraftfahrzeugen. Es ist bekannt, bei derartigen Hauptzylindern im Kolben einen Ringraum vorzusehen, der während des ganzen Kolbenhubes über eine Öffnung in der Zylinderwand mit dem; Ausgleichsbehälter inVerbindung steht. Dieser Ringraum dient zum Nachfüllen des Systems über die Kolbendichtung hinweg. Beim Rückhub des Kolbens bildet sich, wenn der Kolben sich schneller zurückbewegt als die Flüssigkeitssäule im System folgen kann, ein Unterdruck im Zylinder, worauf Flüssigkeit aus dem Ringraum in den Zylinder übertritt, der nach Erreichen der Ruhestellung durch den Kolben durch das Ausgleichsloch in den Nachf üllbehälter übertritt.The invention relates to master cylinders for hydraulic brakes of vehicles, in particular motor vehicles. It is known in such master cylinders to provide an annular space in the piston, which during the entire piston stroke over a Opening in the cylinder wall with the; Expansion tank is in communication. This Annular space is used to refill the system over the piston seal. During the return stroke of the piston forms when the piston moves back faster than the column of liquid in the system can follow a negative pressure in the cylinder, whereupon liquid from the annulus passes into the cylinder, which after reaching the rest position by the piston passes through the compensation hole into the refill container.
Der Ringraum ist normalerweise mit einer Sekundärdichtung an seinem Hinterende gegenüber der Außenluft abgedichtet.The annulus is usually with a secondary seal on its The rear end is sealed against the outside air.
Die Erfindung bezieht sich darauf, die Sekundärdichtung wegfallen zu lassen. Statt dessen ist erfindungsgemäß der Ringraum mit einem einerseits am Kolben und andererseits mit dem Zylinder verbundenen, nach außen abgeschlossenen und vollständig mit Druckflüssigkeit gefüllten Behälter aus Gummi oder einem ähnlichen Werkstoff versehen.The invention relates to eliminating the secondary seal allow. Instead, according to the invention, the annular space is on the one hand on Piston and on the other hand connected to the cylinder, closed to the outside and containers made of rubber or the like completely filled with hydraulic fluid Material provided.
Beim Vorwärtsbewegen des Kolbens wird das Volumen des Gummibehälters verkleinert. Die Flüssigkeit nimmt dabei den Raum innerhalb des Zylinders ein, der vom Kolben freigegeben wird. Erfindungsgemäß ist der Gummibehälter so ausgebildet, daß das beim Kolbenhub veränderte Volumen jeweils annähernd dem Volumen im Zylinder hinter dem Kolben entspricht.As the piston moves forward, the volume of the rubber container becomes scaled down. The liquid takes up the space inside the cylinder, the is released from the piston. According to the invention, the rubber container is designed so that the volume changed during the piston stroke approximates the volume in the cylinder behind the piston.
Ein Ausführungsbeispiel des Erfindungsgegenstandes ist in der Abbildung dargestellt.An embodiment of the subject matter of the invention is shown in the figure shown.
In einem Hauptzylinder i ist ein Kolben 2 über seine Kolhenstange 3 verschiebbar. Der Kolben 2 besitzt einen Ringraum ¢, der über eine Öffnung 5 während des ganzen Kolbenhubes mit einem über dem Anschlußstück 6 angeordneten Ausgleichsbehälter in Verbindung steht.In a master cylinder i is a piston 2 via its piston rod 3 movable. The piston 2 has an annular space [, which has an opening 5 during of the entire piston stroke with an expansion tank arranged above the connection piece 6 communicates.
Am Zylinderhinterende 7 ist ein allseitig geschlossener und mit Flüssigkeit gefüllter Behälter 8 aus Gummi oder ähnlichem Material befestigt, der auf der anderen Seite an der Kolbenstange 3 angeordnet ist.At the rear end of the cylinder 7 is a closed on all sides and with liquid Filled container 8 made of rubber or similar material attached to the other Side is arranged on the piston rod 3.
Das Hinterende des Kolbens 2 ist bei 9 im Zylinder geführt und besitzt Öffnungen io für den übertritt der Flüssigkeit nach dem Behälter B.The rear end of the piston 2 is guided at 9 in the cylinder and has Openings io for the passage of the liquid to the container B.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET3550A DE840800C (en) | 1950-11-19 | 1950-11-19 | Master cylinder for hydraulic brakes of vehicles, especially automobiles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET3550A DE840800C (en) | 1950-11-19 | 1950-11-19 | Master cylinder for hydraulic brakes of vehicles, especially automobiles |
Publications (1)
Publication Number | Publication Date |
---|---|
DE840800C true DE840800C (en) | 1952-06-05 |
Family
ID=7544292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DET3550A Expired DE840800C (en) | 1950-11-19 | 1950-11-19 | Master cylinder for hydraulic brakes of vehicles, especially automobiles |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE840800C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1174633B (en) * | 1960-12-02 | 1964-07-23 | Teves Kg Alfred | Tandem master cylinder |
FR2571445A1 (en) * | 1984-10-04 | 1986-04-11 | Kugelfischer G Schaefer & Co | MASTER CYLINDER FOR HYDRAULIC SYSTEM |
-
1950
- 1950-11-19 DE DET3550A patent/DE840800C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1174633B (en) * | 1960-12-02 | 1964-07-23 | Teves Kg Alfred | Tandem master cylinder |
FR2571445A1 (en) * | 1984-10-04 | 1986-04-11 | Kugelfischer G Schaefer & Co | MASTER CYLINDER FOR HYDRAULIC SYSTEM |
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