Vehicle hydraulic braking system

Details Vehicle hydraulic braking system Vehicle hydraulic braking system

1984-05-21

1985-10-22

Stoner, Jr., Bruce H.

Fluid-pressure and analogous brake systems

Multiple fluid-receiving devices

Multiple motors

60591, 180 62, 188345, B60T 1100, B60T 1312

Patent

active

045479674

ABSTRACT:
A pair of tandem master cylinders have primary pressure spaces connected to the brakes on one pair of wheels on opposite sides of the vehicle, and an actuator for the brakes on a trailer is supplied with fluid under pressure from pipe-lines connected to each of the four pressure spaces and under the control of first and second disabler valves. Each disabler valve has a pair of inlet ports, each connected either to respective primary pressure spaces or respective secondary pressure spaces, and an outlet port connected to the actuator. When one master cylinder is operated on its own both disabler valves are closed to prevent the actuator from being operated. Failure of one pressure space, when both master cylinders are operated simultaneously, causes the corresponding disabler valve to close but the actuator can still be operated from the operative pressure spaces, through the other disabler valve.

REFERENCES:
patent: 2366310 (1945-01-01), Boldt
patent: 2911168 (1959-11-01), Moreland
patent: 3477549 (1969-11-01), Barton
patent: 4265491 (1981-05-01), Shutt

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