发明申请
- 专利标题: Sandwich panel for sound absorption
- 专利标题(中): 三明治板吸音
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申请号: US12316579申请日: 2008-12-12
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公开(公告)号: US20090173572A1公开(公告)日: 2009-07-09
- 发明人: Benjamin Grenzing , Christian Thomas , Thomas Gerner
- 申请人: Benjamin Grenzing , Christian Thomas , Thomas Gerner
- 申请人地址: DE Hamburg
- 专利权人: Airbus Deutschland GmbH
- 当前专利权人: Airbus Deutschland GmbH
- 当前专利权人地址: DE Hamburg
- 优先权: DE102007060668.2 20071217
- 主分类号: E04B1/82
- IPC分类号: E04B1/82
摘要:
An aircraft cabin panel for sound absorption, with a core layer that comprises a plurality of cells that extend in an open manner across the thickness of the core layer and that are separated from each other by cell walls, and with a first cover layer that faces away from the sound field, as well as a second cover layer that faces towards the sound field and that comprises a plurality of perforation holes. The second cover layer is multi-layered and apart from a layer with the perforation also comprises a second layer that acts as a flow resistance device. The second layer is arranged on the outside, and visually closes off the perforation, and the outer layer comprises an air-permeable woven fabric.
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