Treatment of gaseous emissions
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United States of America Patent
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Jun 27, 2006
Grant Date -
Nov 4, 2004
app pub date -
Oct 29, 2003
filing date -
Sep 9, 1997
priority date (Note) -
Expired
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Abstract
A reactor chamber forms part of an exhaust system of an internal combustion engine. Within the chamber are electrodes between which there is disposed a bed of active material through which, in use, the exhaust gases pass. In the presence of an electrical discharge, driven by an electrical voltage applied across the electrodes, the active material has a catalytic action in the reduction of nitrogenous oxides in the exhaust and also acts to remove hydrocarbons from the exhaust gases.
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