After-treatment de-contamination system
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United States of America Patent
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Sep 17, 2013
Grant Date -
Jan 14, 2010
app pub date -
Jul 13, 2009
filing date -
Jul 11, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
In one aspect an internal combustion engine assembly may be provided that may include at least one combustion chamber and an exhaust system with an after-treatment system that may have an oxidation catalyst and a particulate filter. The internal combustion engine assembly may include an electronic controller that may have a de-contamination function that may, responsive to a command be configured to de-contaminate the particulate filter and the oxidation catalyst. To that end, a method may be provided to, and the controller may be configured to increase the exhaust gas temperature at an inlet of the after-treatment system to above a de-contamination temperature during a certain time period.
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