Auxiliary power unit exhaust system and method for a locomotive
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United States of America Patent
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Sep 7, 2004
Grant Date -
May 27, 2004
app pub date -
Nov 27, 2002
filing date -
Nov 27, 2002
priority date (Note) -
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Abstract
Systems and methods for reducing engine emissions in a locomotive are presented. In an embodiment, the primary engine of a locomotive has an associated auxiliary power unit (APU). Exhaust from the APU is directed into an air intake system of the primary engine. The APU may be selectively operated based on a current operating condition of the locomotive.
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