Sound absorber for the exhaust gas unit of a motor vehicle driven by an internal combustion engine comprises a component designed as a metallic hollow space structure

摘要

Sound absorber for the exhaust gas unit of a motor vehicle driven by an internal combustion engine comprises a housing, an exhaust gas admission pipe and an exhaust gas outlet pipe. At least one part of the components of the sound absorber coming into contact with the intermittent exhaust blast is designed as a metallic hollow space structure. Preferred Features: The hollow space structure is open-pored. Spherical cavities within the hollow space are connected to each other by the pores.