Hydraulic servo-assisted braking system for motor vehicles

Details Hydraulic servo-assisted braking system for motor vehicles Hydraulic servo-assisted braking system for motor vehicles

1979-01-03

1980-05-20

Reger, Duane A.

Fluid-pressure and analogous brake systems

Motorman's valves

Multiple motors

60548, B60T 1316

Patent

active

042036313

ABSTRACT:
A hydraulic servo-assisted braking system for motor vehicles has a master cylinder controlling two independent braking circuits through respective auxiliary cylinders each having an auxiliary piston with a central bore and an associated servo-piston with a stem which closes the said bore upon displacement of the servo-piston by hydraulic fluid pressure of source circuit, separable from the master cylinder, applied to the servo-piston through a common interception valve which is opened to admit the source pressure to the servo-pistons upon movement of either or both of a pair of pistons in a modulator cylinder subjected to the respective hydraulic pressures in the two brake actuator circuits. Failure of one of the braking circuits allows the other to remain operative, while damage to the servo-cylinders allows braking to remain effective through the master cylinder.

REFERENCES:
patent: 3208802 (1965-09-01), Thirion
patent: 4123908 (1978-11-01), Bertone et al.

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