System and method for reducing nitrogen oxides in the exhaust of an internal combustion engine
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United States of America Patent
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Dec 26, 2006
Grant Date -
Jun 16, 2005
app pub date -
Jul 19, 2002
filing date -
Jul 21, 2001
priority date (Note) -
Expired
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Abstract
In a system and method for the reduction of nitrogen oxides in the exhaust of an internal combustion engine, the exhaust line of the internal combustion engine contains a DeNOx catalytic converter, in which the nitrogen oxides are reduced by means of hydrogen that is produced on-board the vehicle. The DeNOx catalytic converter is incorporated into a temperature-controlled heat exchanger, allowing the DeNOx catalytic converter to be operated within a desired temperature range, thereby improving the level of conversion.
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