发明名称 |
An empennage of a helicopter |
摘要 |
<p>The invention is related to an empennage (1.1) of a helicopter comprising a ducted counter-torque device with a multiblade rotor (4) of rotor blades (3) and optional vertical tail fins (1.2). Flow-straightening stators (5) of stationary vanes are disposed substantially in a star configuration parallel to the rotor plane downstream from the rotor (4). A shroud (2.1) of the ducted counter-torque device is sheathed with a composite structure of an outer erosion protecting surface layer (7.1, 8.1) made of a hard plastic or a plastic composite material, and at least one succeeding layer (7.2, 8.2) of an elastomeric damping material.</p> |
申请公布号 |
EP2706009(A1) |
申请公布日期 |
2014.03.12 |
申请号 |
EP20120400037 |
申请日期 |
2012.09.07 |
申请人 |
EUROCOPTER DEUTSCHLAND GMBH |
发明人 |
KREITMAIR-STECK, WOLFGANG;HEBENSPERGER, MICHAEL |
分类号 |
B64C27/00;B64C27/82;B64D45/00 |
主分类号 |
B64C27/00 |
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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