Locomotive emission reduction kit and method of earning emission credits
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United States of America Patent
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Oct 21, 2003
Issued Date -
N/A
app pub date -
Apr 30, 2001
filing date -
Jan 31, 2001
priority date (Note) -
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Abstract
A locomotive emissions reduction kit and method of earning emission credits enables an auxiliary power unit dedicated to a locomotive diesel engine allowing shutdown of such engine in all weather conditions, thereby significantly reducing exhaust emissions. An auxiliary power unit made up of a secondary engine with substantially lower exhaust emissions coupled to an electrical generator is provided. An automatic control system shuts down the locomotive engine after a period of idling and the auxiliary power unit provides electrical power for heating and air conditioning. In cold weather, the auxiliary power unit maintains the locomotive engine coolant and lube oil warm to facilitate engine restart. The coolant system is kept warm using a heat exchanger and electrical heaters. The lube oil system is kept warm using a recirculating pump and electrical heaters. A geographic position determination unit generates locomotive location information. Data recording instruments process and record information concerning locomotive engine and auxiliary engine activity for monitoring geographical position, emissions, and fuel levels of the locomotive engine and its corresponding auxiliary unit.
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