An array of discrete sound absorbers (20a, 20b) is attached to an inner surface (122) of an annular tread portion (12) of a pneumatic tire (10) or an annular rim surface (34) of a wheel rim (30) to reduce tire cavity noise. Each sound absorber (20a, 20b) includes a flexible sheet-like base material (54), a sheet-like screen material (52), and a sound absorbing material (56) disposed in a closed space formed by the sheet-like base material (54) and the sheet-like screen material (52).
DISCRETE SOUND ABSORBERS FOR TIRE CAVITY NOISE REDUCTION
DISKRETE SCHALLDÄMPFER ZUR REIFENHOHLRAUMGERÄUSCHREDUZIERUNG
AMORTISSEURS DE BRUIT DISCRETS POUR RÉDUCTION DE BRUIT DE CAVITÉ DE PNEU
2023-11-15
Patent
Elektronische Ressource
Englisch
DISCRETE SOUND ABSORBERS FOR TIRE CAVITY NOISE REDUCTION
Europäisches Patentamt | 2022
|DISCRETE SOUND ABSORBERS FOR TIRE CAVITY NOISE REDUCTION
Europäisches Patentamt | 2024
|