Patent ID: 6264899
Filing Date: 2001-07-24
Classification: B01D,C10L,F01N,F02M,Y02A,Y02T

Abstract:
An apparatus for decreasing at least one pollutant selected from the group consisting of products of incomplete combustion of fuel and oxides of nitrogen from a first concentration to a second lower concentration in an exhaust gas stream containing exhaust gases formed from the combustion of fuel in an internal combustion engine, the apparatus comprising:a combustion chamber configured to have a pre-combustion gas stream to the combustion chamber and a post-combustion gas stream of exhaust gases from the combustion chamber;at least one generator which produces hydroxyl radicals, at least a portion of which is located in at least one pre-combustion gas stream and the post-combustion gas stream;a power supply which supplies high frequency power to the generator; andcatalytically active material,wherein at least a portion of the catalytically active material is located downstream from the generator.