Fuel cell system
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United States of America Patent
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-
Dec 4, 2007
Grant Date -
May 20, 2004
app pub date -
Jul 14, 2003
filing date -
Jul 13, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A fuel cell based system for the generation of electrical energy employs a drive unit that includes at least two electric motors sharing a common rotor which is mechanically coupled to drive a compressor to provide oxidant and/or fuel to a fuel cell. An electrical storage device such as a battery produces a voltage in at least a low voltage one of the electric motors to startup the system, and the fuel cell supplies a voltage to a high voltage one of the electric motors to drive the compressor, one or more loads such as a traction motor, and/or recharge the electrical storage device during standard operation.
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