发明名称 |
ACOUSTIC LINER WITH VARIED PROPERTIES |
摘要 |
A geared turbofan engine includes a first rotor, a fan, a second rotor, a gear train, a fan casing, a nacelle and a plurality of discrete acoustic liner segments. The fan is connected to the first rotor and is capable of rotation at frequencies between 200 and 6000 Hz and has a fan pressure ratio of between 1.25 and 1.60. The gear train connects the first rotor to the second rotor. The fan casing and nacelle are arranged circumferentially about a centerline and define a bypass flow duct in which the fan is disposed. The plurality of discrete acoustic liner segments with varied geometric properties are disposed along the bypass flow duct. |
申请公布号 |
EP2971659(A4) |
申请公布日期 |
2016.11.23 |
申请号 |
EP20140807350 |
申请日期 |
2014.03.11 |
申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
GILSON, JONATHAN;BALTAS, CONSTANTINE |
分类号 |
F02C7/045;F02C3/107;F02C7/24;F02C7/36;F02K1/82;F02K3/06 |
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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