Patent ID: 6726884
Filing Date: 2004-04-27
Classification: F01N,Y02T,Y10T

Abstract:
A pollution control device for purifying exhaust gas from an internal combustion, the pollution control device comprising:a housing; a pollution control element disposed within the housing; a resilient mat positioned between the housing and the pollution control element; an end cone connecting the housing to an exhaust pipe of an internal combustion engine; and insulating cone having an inner surface and an outer surface, the insulating cone comprising inorganic materials including at least one of inorganic fibers and inorganic particulate, the insulating cone positioned within the end cone, such that a substantial portion of the inner surface of the insulating cone is exposed to the flow of exhaust gas from the internal combustion engine, the inorganic materials of the inner surface of the insulating cone being bonded together by melting, sintering, or softening of the materials so as to form a rigid surface that can sufficiently withstand erosion from exposure to such exhaust gas flow.