发明名称 |
Sound suppressor liners |
摘要 |
This invention relates to acoustic liners having a plurality of cavities defining Helmholtz resonators in which the adjacent cavities are asymmetrical causing a pressure imbalance across the coupling means (tube, slot or aperture) between these cavities in the frequency range of interest. Such liners are particularly useful in turbofan engine noise reduction applications where low frequencies are encountered.
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申请公布号 |
US4189027(A) |
申请公布日期 |
1980.02.19 |
申请号 |
US19770860040 |
申请日期 |
1977.12.12 |
申请人 |
UNITED TECHNOLOGIES CORP |
发明人 |
DEAN, LEE W III;PERACCHIO, ALDO A |
分类号 |
G10K11/172;(IPC1-7):F01N1/00;E04B1/99;G10K11/04 |
主分类号 |
G10K11/172 |
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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