Wheelset monitoring system

Details Wheelset monitoring system Wheelset monitoring system

1996-01-03

1997-05-27

Swann, Glen

Communications: electrical

Condition responsive indicating system

Specific condition

340449, 340589, 340682, G08B 2100

Patent

active

056336284

ABSTRACT:
A thermal warning device attaches to a wheel assembly of a railway car to detect whether the wheel assembly has reached high temperatures and may lead to a potential bearing failure. A temperature sensor for monitoring the temperature of the wheel assembly is coupled to an electronic circuit for determining whether a bearing failure may occur based on the temperatures detected by the temperature sensor. In particular, the temperature sensor adjustably extends into the wheel assembly in order to obtain accurate readings of high temperatures in wheel assembly. Also, the electronic circuit is situated away from the outer surface of the wheel assembly so that the electronic circuit will not be subjected to heat from the wheel assembly and may freely dissipate heat produced by its own components. Upon determination of a warning condition, the electronic circuit transmits a warning signal to a wayside station or train crew. Optionally, the electronic circuit may include a wireless transmitter for communication with an in-cab receiver.

REFERENCES:
patent: 3548396 (1970-12-01), Roberts
patent: 4812826 (1989-03-01), Kaufmann et al.
patent: 4977577 (1990-12-01), Arthur et al.
patent: 5381692 (1995-01-01), Winslow et al.
patent: 5438322 (1995-08-01), Martin et al.

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