Diesel engine system for use with emission control device
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United States of America Patent
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Jan 20, 2004
Grant Date -
N/A
app pub date -
Jul 31, 2002
filing date -
Jul 31, 2002
priority date (Note) -
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Abstract
An exhaust valve downstream of a diesel engine splits exhaust gasses between two catalysts. In one position, most of the exhaust gasses go to a first catalyst, and the remaining exhaust gasses, along with injected reductant go to a second catalyst. In a second position, most of the exhaust gasses go to the second catalyst, and the remaining exhaust gasses, along with injected reductant go to the first catalyst. In this way, a reduced cost system is achieved.
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