Patent ID: 7399452

Claim:
An exhaust system for an internal combustion engine, said exhaust system having a housing in which there are provided an exhaust inlet port and another exhaust discharge port, and a catalyst element that is disposed within the housing of the exhaust system for purifying the exhaust of the internal combustion engine in such a manner that a substantial part of the exhaust at least is caused to flow through the catalyst element, characterized in that: the exhaust gases alternately flow through the catalyst element through an exhaust conducting means; the exhaust conducting means is of a conduit configuration and that the catalyst element is disposed inside a conduit portion where it is held stationary by the exhaust conducting means; the exhaust conducting means is made from at least two parts; an outer shell of the housing forms a part of the exhaust conducting means; a part of the exhaust conducting means is formed by a deflecting shell, said deflecting shell being retained by the outer shells of the housing; the deflecting shell of the exhaust conducting means and one outer shell of the housing are made from one piece; and the outer shells of the housing and the deflecting shell of the exhaust conducting means are solidly joined together by a bead.