Locomotive axle mounted cab signaling sensor

Details Locomotive axle mounted cab signaling sensor Locomotive axle mounted cab signaling sensor

1991-11-27

1993-08-10

Huppert, Michael S.

Railway switches and signals

Cab signal or train control

Train mechanism

246 34R, 246197, B61L 324

Patent

active

052341844

ABSTRACT:
A sensing device mounted on a railway locomotive vehicle axle assembly to sense signalling currents conducted through the axle. The device also serves to protect the critical traction motor support bearing from contamination by foreign substances. The sensing device includes a core member mounted in material at least partially covering the bearing and maintaining the core member in position encircling the axle. The core member conducts magnetic flux caused by the flow of current through the axle. An electrical conductor wound about the core member and/or a hall effect sensor embedded within the core member detect the presence of the flux. Clamping bands maintain the mounting material in position about the axle.

REFERENCES:
patent: 966796 (1910-08-01), Chandeysson
patent: 1302345 (1919-04-01), Finnigan
patent: 1399796 (1921-12-01), Ross
patent: 1413667 (1922-04-01), Lehmann
patent: 1627409 (1927-05-01), Rose
patent: 2576424 (1951-11-01), Sunstein
patent: 4451018 (1984-05-01), Smith et al.
patent: 4655421 (1987-04-01), Jaeger
patent: 4720067 (1988-01-01), Jaeger
Jan. 1978 General Mators Electromotive Division, Maintenance Instruction, p. 21.

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