Active sound absorber for exhaust-gas system of internal-combustion engine particularly in motor vehicle, has anti sound generator comprises membrane drive, with which anti sound generator is coupled with external wall of sound absorber

摘要

The absorber has anti sound generator (3) for admission of exhaust with anti sound. The anti sound generator has a membrane drive (9), with which anti sound generator is coupled with external wall (13) of sound absorber (1) by a coupling element (11) in heat conductive and sound absorbing manner. The external wall of sound absorber is in contact with the environment (12).