Servo-assisted hydraulic braking system

Details Servo-assisted hydraulic braking system Servo-assisted hydraulic braking system

1976-09-24

1978-09-19

Schwadron, Martin P.

Power plants

Pressure fluid source and motor

Pulsator

60555, 60562, 60582, 91460, B60T 1312

Patent

active

041143760

ABSTRACT:
Servo-assisted hydraulic braking system of the type in which brake pedal pressure is reinforced by a pressure dependent thereon and fed to a master cylinder driving piston by a distributor device which is fed with fluid under pressure from a pressure source and control pressure from control chambers defined by plungers within the master cylinder itself, which plungers are displaced directly or indirectly by the displacement of the driving piston of the master cylinder. The distributor plungers are balanced so that for a given brake pedal pressure they feed through a certain reinforcing pressure and then close off the driving piston chamber from the pressure source, locking in the reinforcing pressure so far applied, so that variations in the pressure generated by the pressure generating device are not fed back to the brake pedal via the driving piston of the master cylinder.

REFERENCES:
patent: 2945352 (1960-07-01), Stelzer
patent: 2976686 (1961-03-01), Stelzer
patent: 3064431 (1962-11-01), Schnell
patent: 3638427 (1972-02-01), Meyers
patent: 3729931 (1973-05-01), Shilton
patent: 3776101 (1973-12-01), Nussbaumer
patent: 3797246 (1974-03-01), Belart
patent: 3818705 (1974-06-01), Thomas
patent: 3894390 (1975-07-01), Belart
patent: 3976171 (1976-08-01), Belart

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