Patent ID: 7377359

Claim:
A device for noise configuration in a motor vehicle which has an internal combustion engine ( 1 ) with at least two gas conduits ( 6 , 7 ) connected to the engine ( 1 ), the at least two gas conduits ( 6 , 7 ) being interconnected by means of a cross-flow section ( 8 ), the cross-flow section ( 8 ) including a housing ( 9 ) enclosing the at least two gas conduits ( 6 , 7 ) and having at least two chambers ( 11 , 12 ) divided by a separating wall ( 10 ) extending between the gas conduits ( 6 , 7 ) over the full length of the housing ( 9 ), each of the at least two gas conduits ( 6 , 7 ) extending longitudinally through one of the chambers ( 11 , 12 ) and each of the gas conduits ( 6 , 7 ) being in communication with the respective chamber ( 11 , 12 ) in which it is disposed by means of a respective cross-flow opening ( 13 , 15 ) disposed at one longitudinal end of the housing ( 9 ), the chambers ( 11 , 12 ) being in communication with one another by means of at least one cross-flow opening ( 14 ) arranged at the other end of the housing ( 9 ) remote from the cross-flow openings ( 13 , 15 ) of the gas conduits ( 6 , 7 ) so that there is a relatively large travel distance between the cross flow openings ( 13 , 15 ) of the gas conduits ( 6 , 7 ) and the crossflow opening ( 14 ) between the chambers ( 11 , 12 ) for the gas within the chambers ( 11 , 12 ) in order to provide for a phase shift of gas Sound waves while permitting gas flow between the gas conduits ( 6 , 7 ).