| 摘要 |
A brake force booster installation with a mechanical, pneumatic or hydraulic actuating mechanism acting on a servo- and adjusting-unit, which in turn acts on the master cylinder, with filling devices and with control- and shifting-devices; the filling devices and the actuating mechanism are thereby actuated by movement of the brake pedal lever pivotally connected at two connecting points to the piston rods of an actuating piston and of a filling piston while the filling devices and the actuating devices are so arranged separated from one another and are so connected with the control and shifting devices that the brake pedal lever during its idle path is actuated with one lever ratio by holding fast one piston rod and thereupon the working effect is realized by automatically shifting to a different translation ratio.
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