Noise attenuating device for passenger compartment of motor vehicle, has acoustic absorption element permitting acoustic absorption of noise and placed inside end part of tubular shaped fascia crossbar and inside casing

摘要

The device (20) has an acoustic absorption element (132) for permitting acoustic absorption of noise and placed inside an end part (30) of a tubular shaped fascia crossbar (22) and inside a casing (26) perpendicular to the end part, where the end part is fixed to the casing and opens into the casing. The absorption element includes a body (132A) formed from an acoustic absorption material such as foam e.g. open cell foam. The absorption element includes a perforated plate transversely extended to the end part, and a sealing plate parallelly extended to the perforated plate.