Overheated journal bearing derailment prevention system

Details Overheated journal bearing derailment prevention system Overheated journal bearing derailment prevention system

1974-08-07

1976-01-06

Blix, Trygve M.

Railway switches and signals

Cab signal or train control

Train defect

340 57, B61K 904

Patent

active

039306291

ABSTRACT:
An anti-derailment system to prevent train derailment due to axle failure sulting from journal bearing overheating includes a thermal sensor to continuously monitor the temperature of the bearing and to activate the brake system when the temperature exceeds a predetermined level. A thermally-responsive element located in the journal bearing adapter physically deforms to activate a power source. The resulting signal initiates an electroexplosive brake line venting mechanism, puncturing and venting the brake line to stop the train. Several configurations of the thermal sensor and the power source are possible.

REFERENCES:
patent: 1512456 (1924-10-01), Carman
patent: 3803374 (1974-04-01), Delgendre

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