Control device of a brake booster, applying additional force whe

Details Control device of a brake booster, applying additional force whe Control device of a brake booster, applying additional force whe

1989-10-31

1991-09-10

Look, Edward K.

Power plants

Pressure fluid source and motor

Pulsator

1376275, 137907, B60T 1320

Patent

active

050463144

ABSTRACT:
In order to increase the efficiency of a booster (10), the rear chamber (18) of which contains an auxiliary drive member (28) having a pressure chamber (30) connected to a pressure source (34) via a control device (36), the latter comprises a normally closed valve (38), via which the source (34) can communicate with the pressure chamber (30), and a mechanism (40) actuating this valve, which controls the opening of the latter automatically when the pressure in the rear chamber (18) exceeds the pressure in the front chamber (16) of the booster by a given value. Such an assembly can be used particularly on a braking system of a motor vehicle.

REFERENCES:
patent: 3107693 (1963-10-01), Puster et al.
patent: 3580646 (1971-05-01), Ternent
patent: 4117769 (1978-10-01), Carre et al.
patent: 4117865 (1978-10-01), Beck
patent: 4208872 (1980-06-01), Shimizu et al.
patent: 4337798 (1982-07-01), Zettergren
patent: 4610483 (1986-09-01), Matsumoto et al.
patent: 4638837 (1987-01-01), Buike et al.
patent: 4691968 (1987-09-01), Pugh et al.

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