Vacuum brake booster

摘要

In order to achieve a considerable reduction of the manufacturing and assembly costs in the case of a vacuum brake booster for a hydraulic brake system with slip control, whilst at the same time improving its reliability, it is proposed according to the invention that a second movable wall (64), which is actuatable with a controllable pressure differential and separates a first working chamber (73) constantly connected to the atmosphere from a second working chamber (74), acted upon by the atmosphere or a vacuum, be arranged so that it acts between an intermediate piston (70), interacting with a power output element (62) of the booster (1), and the primary piston (81) of a brake master cylinder (2) connected to the booster (1) on the output side. <IMAGE>