Noise reduction device for use at wall structure of cabriolet body, is formed according to type of helmholtz-resonator and structurally joined with wall structure, where structure internal side is provided adjacent to passenger compartment

摘要

The device is formed according to type of a helmholtz-resonator and structurally joined with a wall structure of a body (4) of a motor vehicle (1), where the wall structure is turned to an external side and an internal side of the vehicle. The internal side is provided adjacent to a passenger compartment (12), and the wall structure has two container systems with two passage openings. One of the container systems is integrated into a column (8) between a mobile roof and a base (5) of the body. The other container system is integrated into the mobile roof of the body.