Patent ID: 7434390

Claim:
An air-gap-insulated exhaust manifold of an internal combustion engine, in particular in a motor vehicle, comprising a collecting line ( 2 ) extending in a longitudinal direction ( 3 ), an outlet opening ( 4 ) oriented in the longitudinal direction ( 3 ), multiple inlet openings ( 5 ) oriented along the longitudinal direction ( 3 ) and a flange ( 6 ) extending in the longitudinal direction ( 3 ) and including the inlet openings ( 5 ), wherein an inside pipe ( 11 ) is disposed in an outside pipe ( 10 ), forming air-gap insulation ( 12 ), wherein a gas-carrying outside pipe section ( 13 ) is provided in the area of at least one of the inlet openings ( 5 ), leading from the respective inlet opening ( 5 ) to a respective inside pipe inlet ( 14 ) at a distance from the flange ( 6 ), characterized in that the inside pipe ( 11 ) is mounted on the outside pipe ( 10 ) exclusively in one attachment area ( 15 ) which is arranged with respect to the longitudinal direction ( 3 ) approximately centrally between the outlet opening ( 4 ) and the inlet opening ( 5 ) which is at the greatest distance from the outlet opening ( 4 ), the inside pipe ( 11 ) is arranged movably at least in the longitudinal direction ( 3 ) in relation to the outside pipe ( 10 ) outside of the attachment area ( 15 ).