Brake isolator valve

Details Brake isolator valve Brake isolator valve

1982-03-31

1984-07-03

Reger, Duane A.

Fluid-pressure and analogous brake systems

Multiple fluid-receiving devices

Multiple motors

180 62, B60T 1120

Patent

active

044575629

ABSTRACT:
A brake circuit for a vehicle having selectively brakeable rear wheels comprises separate master cylinders each connected to one rear wheel brake and separately operable by means of foot pedals. The outputs of the master cylinders are connected to a control valve which in turn is connected to front wheel hydraulic brakes of the vehicle. When either of the pedals is depressed without depressing the other pedal the control valve is effective to isolate the front brakes from the pressurized rear brake circuit. However, when the brake pedals are linked together by a plate so that both rear brakes are operated together with control valve establishes a communication between the output of one master cylinder and the front brakes, thereby allowing four wheel braking.

REFERENCES:
patent: 3386775 (1968-06-01), Jones
patent: 3863991 (1975-02-01), Wilson

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