EXHAUST LINE AND MOTOR VEHICLE EQUIPPED THEREWITH

摘要

An exhaust line for an internal combustion engine comprises an active system for noise reduction regulated continuously as a function of the pulsation of flow of exhaust gases using an expansion chamber for phases of closing of the device of variable restriction placed downstream of the noise reduction system. An exhaust line for an internal combustion engine, using an active system for noise reduction regulated continuously as a function of the pulsation of flow of exhaust gases, comprises: (1) an expansion chamber for phases of closing of the device of variable restriction placed downstream of the noise reduction system; and (2) a dissipative cavity for dispersion of high frequencies. The expansion chamber is integrated in a primary depollution system placed upstream of the noise reduction system. An Independent claim is included for an internal combustion engine connected to the exhaust line system.