发明名称 |
Jet engine and method for reducing jet engine noise by reducing nacelle boundary layer thickness |
摘要 |
A jet engine has a noise reduction system which reduces the boundary layer located on the outer surface of the nacelle. The noise reduction system includes a plurality of openings located in the outer surface of the nacelle which are in communication with a source of low pressure. The low pressure causes a reduction in the boundary layer at the openings so that resulting ambient air flow velocity near the nacelle surface is increased. This causes a reduction in the shearing between the secondary and ambient airflows thereby reducing the noise.
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申请公布号 |
US6094907(A) |
申请公布日期 |
2000.08.01 |
申请号 |
US19960658663 |
申请日期 |
1996.06.05 |
申请人 |
THE BOEING COMPANY |
发明人 |
BLACKNER, ANTHONY M. |
分类号 |
F02C7/045;F02K1/34;(IPC1-7):F02K3/02 |
主分类号 |
F02C7/045 |
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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