Patent ID: 7444806

Claim:
An exhaust-carrying component of an exhaust system for an internal combustion engine, the component comprising: a pipe through which exhaust gas can flow from one longitudinal end with an end area to another longitudinal end with another end area, said pipe having a longitudinal section between said one longitudinal end and said another longitudinal end, said longitudinal section of said pipe having perforations; a housing which surrounds said pipe in a circumferential direction thereof, said housing being fixedly connected to said pipe in said end area and in said another end area; wherein said perforations are designed so that said longitudinal section absorbs thermal longitudinal expansion forces between said pipe and said housing essentially through elastic deformation, said perforations being formed via elongated holes, each elongated hole having an elongated hole longitudinal direction extending in the circumferential direction of said pipe, said perforations comprising a plurality of adjacent rows of said elongated holes with respect to a longitudinal direction of said pipe, each of said rows comprising a plurality of elongated holes spaced a distance apart with respect to the circumferential direction of said pipe, said elongated holes of one of said rows of holes being arranged offset in the circumferential direction of said pipe with respect to said elongated holes of an adjacent row of said rows of holes.