Railway switches and signals – Cab signal or train control – Speed-control systems
Patent
1995-01-06
1997-10-14
Morano, S. Joseph
Railway switches and signals
Cab signal or train control
Speed-control systems
104 262, 104249, 104294, 188 62, B61K 710
Patent
active
056763379
ABSTRACT:
A railway car retarder mechanism that employs linear electromagnetic induction to precisely accelerate or decelerate a railcar. The retarder mechanism includes a plurality of linear induction stators having a spaced plurality of primary inductors, a controllable power source electrically connected with selected ones of the primary inductors, a controller for controlling the electric current transmitted to the respective primary inductors by the controllable power source, and a sensor for sensing selected railcar parameters and transmitting those parameters to the controller, so that the speed-corrective forces applied by the retarder are proportional to these parameters. The controller regulates the magnetomotive force which is imparted upon a selected one of a plurality of railcar wheel sets, and is connected with each controllable power source. In some embodiments, the sensor include at least a portion of fiber-optic cable, which cable can be disposed proximate to a predetermined length of track rail.
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Elm Joseph P.
Giras Theo C.
Profeta Joseph A.
Romano Dario
Morano S. Joseph
Union Switch & Signal Inc.
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