Patent ID: 7000383
Filing Date: 2006-02-21
Classification: B01D,F01N,F02D,Y02A,Y02T

Abstract:
1. A reductant delivery system, comprising: an evaporator unit including at least a heating element; a mixing device having at least one inlet and at least one outlet coupled to said evaporator unit; a controller for introducing reductant and air into said mixing device through said inlet, injecting a mixture of said reductant and said air through said outlet into said evaporator unit thereby causing evaporation of said reductant and air mixture, and a delivery tube for housing said injected reductant and air mixture, wherein said reductant and air mixture evaporates inside said delivery tube without coming into direct contact with a surface of said heating element, and where said delivery tube is directly coupled to an exhaust gas manifold of an internal combustion engine so that said evaporated reductant and air mixture passes directly from said delivery tube into an exhaust gas flow of said exhaust gas manifold.