Patent ID: 6553755
Filing Date: 2003-04-29
Classification: B01F,F01N,Y02C,Y02T

Abstract:
An exhaust system for an internal combustion engine having a compartment housing a catalytic converter for reducing pollutants in the exhaust gases from the engine in the presence of a reducing agent, the exhaust system comprising:an exhaust duct for carrying the exhaust gases from the engine to the catalytic converter compartment, said exhaust duct having an injection location for the introduction of the reducing agent into the exhaust gases; and a static mixer disposed in said exhaust duct at a location spaced upstream of the catalytic converter compartment and proximate to said injection location, said static mixer comprising an expanded grid made of at least one sheet that has been slit and expanded to provide a mesh having a plurality of openings formed between crossbars of said expanded grid.