Brake booster with improved pedal feel characteristics

Details Brake booster with improved pedal feel characteristics Brake booster with improved pedal feel characteristics

1975-11-28

1977-02-15

Maslousky, Paul E.

Motors: expansible chamber type

With alternative manual actuation of load

Alternate pedal positions

91433, 91460, F15B 1310, F15B 1702

Patent

active

040076652

ABSTRACT:
A motor vehicle fluid power circuit is provided with a constant displacement pump, a control valve, an open-center steering valve, and a hydraulic ratio type brake booster. The control valve includes a control spool which controls fluid flow between the pump and the brake booster and between the pump and the steering valve. A control spool modifying means modifies the operation of the control spool during initial actuation of the brake pedal to produce a large increase in brake booster pressure.

REFERENCES:
patent: 3831491 (1974-08-01), Thomas
patent: 3838629 (1974-10-01), Meyers
patent: 3915066 (1975-10-01), Thomas
patent: 3921502 (1975-11-01), Lauer

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