Patent ID: 8291943
Filing Date: 2012-10-23
Classification: F01N,F16L

Abstract:
1. Exhaust-gas conduction component ( 1 ) that is effective as a vibration-decoupling element for installation in an exhaust-gas system for conducting the exhaust gases of a motor-vehicle internal combustion engine, comprising an outer pipe ( 2 ) and an inner pipe ( 8 ) that is arranged coaxial to the outer pipe ( 2 ) and that is separated from the outer pipe by an annular gap, the outer pipe ( 2 ) comprising a middle section ( a first corrugated pipe section ( a first end section ( the inner pipe ( 8 ) is connected rigidly to the outer pipe ( 2 ) at least in some spots by a middle peripheral joint ( 9 ) in a region of the middle section ( 5 ), wherein the exhaust-gas conduction component ( 1 ) has a straight-line construction and has an at least approximately axis-symmetric construction with respect to a middle transverse axis ( 10 ), and the inner pipe ( 8 ) has a dimensionally stable and smooth construction and is arranged without contact with the outer pipe ( 2 ) over a predominant part of its longitudinal extent.