发明名称 |
SOUND-SHIELDING ELEMENT, USE THEREOF AND METHOD FOR PRODUCING THE SAME |
摘要 |
<p>Sound-shielding element for covering at least one of sound-reflecting or sound-generating structural parts and method for forming the same, the element including at least one panel or layer, a plurality of small perforations formed in the at least one panel or layer, where an average diameter or width of the perforations ranges between 0.001 and 0.7 mm and a hole/surface ratio ranges between 0.001 and 8% so that the sound waves entering the perforations initiate physical effects in a gas volume contained in said perforations.</p> |
申请公布号 |
EP1161360(A1) |
申请公布日期 |
2001.12.12 |
申请号 |
EP20000931069 |
申请日期 |
2000.04.20 |
申请人 |
FAIST AUTOMOTIVE GMBH & CO. KG |
发明人 |
PFAFFELHUBER, KLAUS;KRAUS, GUENTER;PATSOURAS, DIMITRIOS |
分类号 |
B60N2/44;B60J5/04;B60K13/04;B60R13/02;B60R13/08;B62D25/02;B62D25/20;G10K11/172;(IPC1-7):B60R13/08;B60R13/01 |
主分类号 |
B60N2/44 |
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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