The invention relates to a system (1) comprising a sheet metal wall (2), an air gap (3) and an external mudguard trim (4), the trim comprising a porous fibre layer (5) for acoustic absorption which is arranged opposite the air gap, and a structural shell (6) which supports the fibre layer, the trim further comprising a resistive layer (7) for resistance to the passage of air between 200 and 2000 N.s.m-3, the resistance to the passage of air being greater than that of the fibre layer, the shell being made from structural fibres which are bonded to each other by a bonding agent so as to have a porosity which imparts acoustic absorption properties to said shell.
SYSTÈME DE PROTECTION ACOUSTIQUE POUR PARE-BOUE DE VÉHICULE AUTOMOBILE
ACOUSTIC PROTECTION SYSTEM FOR MOTOR VEHICLE MUDGUARD
SCHALLSCHUTZSYSTEM FÜR KRAFTFAHRZEUGKOTFLÜGEL
2022-09-14
Patent
Electronic Resource
French
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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