| 摘要 |
<p>A hydraulic stepping up device in the form of a fluid gear (42-46) is located between a braking cylinder (20), which is guided in a bore (19) of a wheel brake actuator (18) and a spindle drive (34, 36), which is activated by an electric motor (27) when a brake pedal (14) is activated. Said hydraulic stepping device increases the braking force and comprises a sac-type closed membrane (44) which receives a volume of fluid (43) and which has a bottleneck-type filling opening (44.1-44.4), said opening having means for connection to a spindle piston (42), preferably by being axially foldable, and said spindle piston being activated by the spindle drive (34, 36).</p> |
