Vehicle brake booster apparatus

Details Vehicle brake booster apparatus Vehicle brake booster apparatus

1997-11-05

1999-11-09

Lopez, F. Daniel

Power plants

Pressure fluid source and motor

Pulsator

913691, B60T 1320

Patent

active

059791624

ABSTRACT:
A vehicle brake booster apparatus includes a housing and a power piston positioned within the interior of the housing to divide the interior into a first pressure chamber and a second pressure chamber, with the power piston being movable in response to a pressure difference between the second pressure chamber and the first pressure chamber. An axially movable input rod extends outwardly from the power piston and is adapted to be operatively connected to a brake pedal. An axially movable output rod extends outwardly from the housing and is adapted to be operatively connected to a master cylinder. An axially movable valve plunger is mounted within the power piston and is operatively connected to the input rod. A control valve is disposed within the power piston and controls the pressure difference between the first pressure chamber and the second pressure chamber. A reaction device is also provided between the housing and the input rod for applying the reaction force produced by the master cylinder to the input rod.

REFERENCES:
patent: 2883970 (1959-04-01), Stelzer
patent: 2936590 (1960-05-01), Rockwell
patent: 3017866 (1962-01-01), Stelzer
patent: 5161451 (1992-11-01), Fecher
patent: 5190125 (1993-03-01), Suzuki et al.

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