Master brake cylinder for a hydraulic motor vehicle brake system

US9969373B2 · kind B2 · utility

Assignee

• Continental Teves AG & Co. OHG · DE

Inventors

• Harald König · Bernhardswald, DE
• Kai-Michael Graichen · Langen, DE
• Stephan Krebs · Eschborn, DE
• Michael Kollers · Eschborn, DE
• Horst Krämer · Ginsheim-Gustavsburg, DE
• Andreas Macher · Mörfelden, DE

Key dates

• Filing date: Jan 30, 2014
• Grant date: May 15, 2018
• Expiry date: Feb 3, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T11/236
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A tandem master brake cylinder for a hydraulic motor vehicle brake system, which is impinged upon by a pneumatic brake booster, including at least one piston which is displaceable in a housing and has a plurality of follow-up connections the follow-up connections allowing a hydraulic connection between the pressure chamber and a pressureless follow-up chamber at the start of a braking operation. At least some of the follow-up connections are formed as transverse bores through a wall of at least one piston and are arranged at a same distance relative to the piston edge in a main plane, wherein the overtravel thereof by the sealing collar defines a closure path of the piston. In order to allow a smooth, quiet and yet sufficiently reliable braking initiation, the follow-up connections are arranged in a distributed manner on at least three planes, the planes being arranged at a distance to one another and in parallel to the piston edge.