发明名称 |
Tire noise reducing system |
摘要 |
<p>A tire noise reducing system comprises a pneumatic tire, a wheel rim and a noise damper disposed in a cavity formed between the rim and tire when mounted as being surrounded by the tire and rim, the noise damper is made of a porous material having a specific gravity of from 0.005 to 0.06 and secured on a surface facing the cavity, the volume S2 of the noise damper is in a range of from 0.4 to 20.0 % of the volume S1 of the cavity. Preferably, the noise damper is provided with an uneven surface or an outer layer for less sound reflection, and the shape index E of the noise damper is more than 1, and the ratio T/W of the thickness T to the width W of the damper is not less than 1.</p> |
申请公布号 |
EP1253025(A2) |
申请公布日期 |
2002.10.30 |
申请号 |
EP20020008511 |
申请日期 |
2002.04.15 |
申请人 |
SUMITOMO RUBBER INDUSTRIES LTD. |
发明人 |
YUKAWA, NAOKI;NISHIKAWA, MASAMI;NAKAJIMA, TOKUZO;AOKI, CHIEKO;SUGIHARA, HIDEAKI |
分类号 |
B60B21/12;B60C5/00;B60C19/00;(IPC1-7):B60C19/00 |
主分类号 |
B60B21/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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