ARRANGEMENT FOR AN EXHAUST LINE OF AN INTERNAL COMBUSTION ENGINE
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United States of America Patent
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Issued Date -
Oct 21, 2010
app pub date -
Dec 21, 2007
filing date -
Dec 21, 2007
priority date (Note) -
Abandoned
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Abstract
An arrangement is provided for an exhaust line of an internal combustion engine including a fuel burner located upstream of a diesel particulate filter, and a selective catalytic conversion unit. The arrangement includes a turbine connected to an energy recovering arrangement interposed on the engine exhaust line between the diesel particulate filter and the SCR unit. It is possible to convert into useful work the thermal energy liberated by the filter regeneration which, in a conventional exhaust line is wasted, Further, the turbine has the further effect of lowering the temperature entering the SCR unit which, in a conventional exhaust line, is fed with high temperature exhaust gas that has a detrimental effect on the life span of the SCR unit.
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