Vehicle braking control apparatus

Details Vehicle braking control apparatus Vehicle braking control apparatus

1978-04-03

1980-04-22

Frankfort, Charles E.

Fluid-pressure and analogous brake systems

Automatic

Synchronizing

303 81, 303 82, B60T 1552

Patent

active

041991982

ABSTRACT:
A quick service valve is proposed for providing continuous quick service in connection with the operation of a direct release triple valve preferably also provided with an emergency portion having a sensitivity valve for providing a bleed of fluid pressure from a quick action chamber to follow the pressure reductions in a brake pipe, the apparatus having a reference pressure input path connected to the quick service chamber, a brake pipe pressure signal input path, a pressure responsive member responsive to a predetermined difference between the brake pipe pressure and the reference pressure to operate a valve to initiate a restricted discharge from the brake pipe to cause a reduction of the reference pressure and consequent reclosure of the valve. The operation is repetitive during continuing reduction of brake pipe pressure at sufficient rate.

REFERENCES:
patent: 1910544 (1933-05-01), Hewitt
patent: 3707314 (1972-12-01), Paginton

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