发明名称 |
Soundproofing assembly for an automobile, and associated wall element |
摘要 |
The assembly comprises a base spring layer made with a base of a resilient porous material, and the base spring layer being intended to be placed opposite a surface of the automobile. It comprises a stiffening layer arranged above the base spring layer and having a surface density greater than 250 g/m2 and at least one resilient porous upper layer arranged on the stiffening layer. The stiffening layer is made with a base of a dense porous material having a resistance to air flow strictly greater than 2000 N·m−3·s. The assembly advantageously has an upper resistive layer. |
申请公布号 |
US8695757(B2) |
申请公布日期 |
2014.04.15 |
申请号 |
US201013202412 |
申请日期 |
2010.02.19 |
申请人 |
DUVAL ARNAUD;BISCHOFF LARS;RONDEAU JEAN-FRANCOIS;FAURECIA AUTOMOTIVE INDUSTRIE |
发明人 |
DUVAL ARNAUD;BISCHOFF LARS;RONDEAU JEAN-FRANCOIS |
分类号 |
E04B1/84;E04B1/82 |
主分类号 |
E04B1/84 |
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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