Method for regenerating NOx absorbing catalyst
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United States of America Patent
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Sep 15, 2009
Grant Date -
Jun 14, 2007
app pub date -
Sep 27, 2006
filing date -
Dec 12, 2005
priority date (Note) -
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Abstract
; determining whether to perform a poisoning recovery mode based on the determination of whether a performance of the NOx absorbing catalyst has been deteriorated using an amount of exhausted NOx sensed after the performing of the second regeneration mode; and performing the poisoning recovery mode if it is determined that the poisoning recovery mode needs to be performed.
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