Brake circuit with hydraulic amplification and brake assembly co

Details Brake circuit with hydraulic amplification and brake assembly co Brake circuit with hydraulic amplification and brake assembly co

1990-10-15

1992-06-02

Halvosa, George E. A.

Fluid-pressure and analogous brake systems

Pipeless valves

303 10, B60T 1312

Patent

active

051181673

ABSTRACT:
The brake circuit with hydraulic amplification of the input force is connected to a working chamber of a master cylinder (1) controlled by a brake pedal and comprises a source of fluid under high pressure (5), a brake motor (12) and a first valve (10) which, by way of a non-return valve (17), makes or breaks communication between the source of fluid under pressure (5) and the brake motor (12) as a function of the difference between the pressures of the fluid of the source and the fluid in the working chamber of the master cylinder. The brake circuit comprises, furthermore, a second valve (20) pilot-controlled by the pressure of the fluid of the source (5) and having a shutter (24) normally breaking communication between the working chamber and the brake motor (12) and making this communication in the event of a failure of the source.

REFERENCES:
patent: 4812777 (1989-03-01), Shirai
patent: 4852952 (1989-08-01), Kervagoret
patent: 4938541 (1990-07-01), Shaw et al.

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