发明名称 |
A noise attenuation panel |
摘要 |
<p>A noise attenuation panel used to attenuate noise in aircraft engines includes a cellular core and a facing sheet formed with an array of holes. The holes are laser drilled to provide: (i) hole size variation over the facing sheet; (ii) non-circular hole cross section; (iii) polygonal hole cross section; (iv) hole locations not contiguous with walls of the cellular core; and (v) inclined holes passing through the facing sheet in a direction inclined to the normal to the facing sheet.</p> |
申请公布号 |
GB2364366(B) |
申请公布日期 |
2003.12.03 |
申请号 |
GB20010015246 |
申请日期 |
2001.06.21 |
申请人 |
* SHORT BROTHERS PLC |
发明人 |
ROBERT SAMUEL * WILSON |
分类号 |
B23K26/00;B23K26/38;B32B3/20;F02C7/045;F02C7/24;F02K1/82;G10K11/172;(IPC1-7):F02C7/045 |
主分类号 |
B23K26/00 |
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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