Propulsion system for a powered rail vehicle and method of adapting the propulsion system between different configurations
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United States of America Patent
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Aug 20, 2013
Grant Date -
Dec 29, 2011
app pub date -
Jun 29, 2010
filing date -
Jun 29, 2010
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Abstract
A propulsion system for a powered rail vehicle includes a fuel engine, an alternator, and a tractive circuit. The alternator is coupled with and driven by the engine to produce a fuel-based electric current. The tractive circuit includes a conductive bus coupled with the alternator and a traction motor. The conductive bus is configured to couple with a power conditioning circuit to receive an external electric current from an external electric power source via the power conditioning circuit. The tractive circuit has a fuel-powered only configuration, a fuel- and electric-powered configuration, and an electric-powered only configuration. The tractive circuit supplies the traction motor with the fuel-based electric current in the fuel-powered only configuration, with the fuel-based electric current or the external electric current in the fuel- or electric-powered configuration, and with the external electric current in the electric-powered only configuration.
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