Patent ID: 7604092

Claim:
An exhaust system, comprising: a tailpipe; a tailpipe cover connected to said tailpipe and protruding through a cutout formed in a vehicle rear part and enclosing said tailpipe cover completely; said tailpipe cover having a trumpet shape with a first section of a relatively smaller diameter and an end-side second section adjoining said first section and having a relatively larger diameter, said first section having the relatively smaller diameter disposed upstream along an exhaust gas flow and is matched to and connected to said tailpipe, and an adjoining, convexly curved transition region is disposed between said first section and said second section of said tailpipe cover; and wherein, in a cold condition of the exhaust system, said second section of said tailpipe cover is disposed in a cold position defining a relatively smaller gap clearance with respect to the cutout and, in a hot condition of the exhaust system, said second section is disposed in a hot position defining a relatively larger gap clearance between said tailpipe cover and the cutout, and said gap clearance is temporarily increased in the hot position due to thermal increase in length of the exhaust system.