Hydraulic control apparatuses combined with friction brakes

Details Hydraulic control apparatuses combined with friction brakes Hydraulic control apparatuses combined with friction brakes

1977-04-26

1979-01-16

Schwadron, Martin P.

Power plants

Pressure fluid source and motor

Pulsator

60549, 60560, 60567, 60581, 60588, B60T 1120

Patent

active

041342666

ABSTRACT:
Apparatus for hydraulic control of friction brakes of an automobile vehicle which comprises a first master-cylinder directly connected to the hydraulic brake circuit and operated by the driver's brake pedal and a second master-cylinder operated by release of the gas pedal, and connected to the first master-cylinder in place of the reservoir thereof. The first master-cylinder is a tandem master-cylinder which comprises a first piston connected by the intermediary of a linkage to the brake pedal and a second piston dividing the interior of the first master-cylinder into first and second chambers. The first chamber is located between the two pistons and is connected to a first hydraulic brake control-circuit, while the second chamber is situated at an end of said cylinder and is connected to a second hydraulic brake control-circuit. The two chambers are supplied with liquid. The output of the second master-cylinder is connected to a lateral connection leading into one of the chambers in place of the conventional reservoir.

REFERENCES:
patent: 2213947 (1940-09-01), Bowen
patent: 3126987 (1964-03-01), Stell
patent: 3159974 (1964-12-01), Rodgers
patent: 3683619 (1972-08-01), Belart
patent: 3844121 (1974-10-01), Griesenbrock
patent: 4020931 (1977-05-01), Sertori

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