Patent ID: 7856807
Filing Date: 2010-12-28
Classification: B01F,F01N,Y02T

Abstract:
1. An exhaust gas cleaning system, comprising: an exhaust gas channel; a feed device positioned in the exhaust gas channel for selectively introducing a reducing agent into a flow of exhaust; a decomposition chamber having a housing with an exhaust gas inlet in communication with said exhaust gas channel, said housing defining a first flow path directing said flow of exhaust in a first direction, a second flow path directing said flow of exhaust in a second direction, and a third flow path directing said flow of exhaust back to said first direction; the first flow path is defined between an outer surface of a first wall and an inner surface of a second wall that is disposed around the first wall; the second flow path surrounds the first flow path and the third flow path surrounds the second flow path; and an exhaust gas outlet in communication with said third flow path.