发明名称 |
Low noise fan assembly |
摘要 |
A gas turbine engine rotor assembly such as a fan or compressor includes rotor blades spaced axially from stator vanes inside an annular duct. The number of vanes is selected for a predetermined number of blades for obtaining substantially equal values of a cut-off ratio for at least two blade passing frequency harmonics for reducing spinning mode noise from the duct.
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申请公布号 |
US5169288(A) |
申请公布日期 |
1992.12.08 |
申请号 |
US19910756104 |
申请日期 |
1991.09.06 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
GLIEBE, PHILIP R.;HO, PATRICK Y. S. |
分类号 |
F01D5/34;F02C7/045;F04D29/32;F04D29/52;F04D29/66 |
主分类号 |
F01D5/34 |
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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