Strategy employing exhaust back-pressure for burning soot trapped by a diesel particulate filter
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United States of America Patent
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May 7, 2013
Grant Date -
Aug 19, 2004
app pub date -
Feb 19, 2003
filing date -
Feb 19, 2003
priority date (Note) -
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Abstract
An exhaust system (16) of a diesel engine (10) has a diesel particulate filter (18) for treating exhaust gas. When trapped soot has accumulated to an extent that may affect performance of the filter, an engine control system (12) forces combustion of trapped soot by increasing exhaust back-pressure using a control device (20) such as a back-pressure control valve or vanes of a variable geometry turbocharger.
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