Patent ID: 6176078
Filing Date: 2001-01-23
Classification: B01D,F01N,F02M,Y02A,Y02C,Y02T

Abstract:
A system for converting noxious emissions in the exhaust stream produced by an internal combustion engine operating at lean air/fuel ratios into non polluting emissions comprising:a) a non-thermal plasma reaction chamber generating a non-thermal plasma through which a portion of liquid engine fuel passes for conversion of the fuel portion into a reactive gaseous reductant;b) a valve for metering the fuel into said non-thermal plasma reaction chamber so that said gaseous reductant is produced at a rate correlated to the NOx emissions produced by said engine;c) a reducing catalyst downstream of said non-thermal plasma reaction chamber through which the exhaust stream passes for converting said NOx to N.sub.2 ; and,d) an exhaust duct portion from said non-thermal plasma reaction chamber to said exhaust stream for providing fluid communication of said exhaust gases and said gaseous reductant to said reducing catalyst in an externally unaltered state.