Air brake leak locator

Details Air brake leak locator Air brake leak locator

1979-05-25

1982-03-02

Thesz, Joseph M.

Registers

Platform operated

Platform actuated traffic counters

235 92T, 235 92DN, 246169R, 303 1, B60T 1700, G06M 308

Patent

active

043179886

ABSTRACT:
An air flow sensor is disposed in the main supply line of a train air brake system. Circuitry is connected to the sensor and initiates the incrementing of a counter upon the sensing of an air flow rate above a predetermined level for greater than a predetermined length of time. The counting is terminated upon application of the locomotive brakes. The counter thereby produces an indication of elapsed time between the time of an air brake leak occurrence and the time the decrease in pressure is sensed by the locomotive. This indication can be converted to feet based upon speed of travel of the pressure head and divided by the average length of cars in the train to provide an accurate estimate of the location of the leak.

REFERENCES:
patent: 3807808 (1974-04-01), Souther
patent: 4066299 (1978-01-01), Clements

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