US Patent 7347239 Tire noise reducing system
Patent 7347239 was granted and assigned to Sumitomo Rubber Industries on March, 2008 by the United States Patent and Trademark Office.
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A tire noise reducing system comprises a pneumatic tire with a hollow, a wheel rim on which the tire is mounted so that said hollow forms a closed cavity, and a noise damper disposed in the closed cavity, wherein the noise damper is formed by fixing a strip of a porous material to the tire or wheel rim, the noise damper has a volume in a range of from 0.4 to 20% of the volume of the cavity, the noise damper has a sectional shape substantially constant in the tire circumferential direction, and the pneumatic tire comprises a tread portion provided with tread grooves defining a tread pattern having a sea ratio of 20 to 35%.
US Patent 07347239 Tire noise reducing system US Patent 7347239 Tire noise reducing system
US Patent 07347239 Tire noise reducing system
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