Tandem master cylinder for hydraulic dual circuit brake systems in motor vehicles has valve opened and closed by actuator element, controlled by and projecting over piston, to reduce unit length

摘要

The master cylinder has a housing (1) with piston (3) and valve (8). The valve is opened and closed by an actuator element (10), which is controlled by the piston and projects over its end face. The element is a cylinder bush guided in the housing and released by the piston when it is subjected to load. It has an angled stop surface (11) for a valve lifter (12). The element is supported on the housing via a spring (13), which loads it to close the valve.