Patent ID: 8092749

Claim:
An exhaust gas treatment device for an exhaust system of an internal combustion engine, said device comprising: a housing; at least one ceramic body for exhaust treatment positioned in a first position in said housing; wherein said ceramic body has a machined contact zone on its outlet end, and said housing having a bearing zone facing said outlet end of said ceramic body, wherein in said first position of said ceramic body, said machined contact zone is separated from said bearing zone by a given distance in an axial direction; wherein said machined contact zone of said ceramic body and said bearing zone of said housing are adapted to cooperate with one another so that in the case of an axial contact between said ceramic body and said housing, said ceramic body is in direct axial contact with said housing over said machined contact zone and said bearing zone, in case said ceramic body moves away from its said first position toward said housing, wherein said contact zone of said ceramic body has a profile in the axial section and said bearing zone of said housing has a bearing zone profile, wherein said bearing zone profile has a concave curvature, and wherein said profile of said contact zone has a convex curvature.