发明授权
US08226364B2 Blade provided with a resonator to reduce the drag movements of said blade, and a method implemented by said blade
有权
具有谐振器的刀片以减少所述刀片的阻力运动,以及由所述刀片实现的方法
- 专利标题: Blade provided with a resonator to reduce the drag movements of said blade, and a method implemented by said blade
- 专利标题(中): 具有谐振器的刀片以减少所述刀片的阻力运动,以及由所述刀片实现的方法
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申请号: US12490834申请日: 2009-06-24
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公开(公告)号: US08226364B2公开(公告)日: 2012-07-24
- 发明人: Thomas Manfredotti , Paul Cranga , Julien Guitton
- 申请人: Thomas Manfredotti , Paul Cranga , Julien Guitton
- 申请人地址: FR Marignane Cedex
- 专利权人: Eurocopter
- 当前专利权人: Eurocopter
- 当前专利权人地址: FR Marignane Cedex
- 代理机构: Brooks Kushman P.C.
- 优先权: FR0803619 20080627
- 主分类号: B64C27/51
- IPC分类号: B64C27/51
摘要:
Described is a blade (10) extending longitudinally from a root (11) of the blade (10) to a free end (12) of the blade (10), the blade (10) being provided with an incorporated resonator (20) for reducing the drag movements (F1, F2) of the blade (10), the resonator (20) being provided with a closed tank (30) that is partially filled with a liquid (50). Furthermore, the resonator (20) includes a central tube (40) immersed inside the tank (30), the tank (30) and the central tube (40) being arranged in a longitudinal direction (Y) of the blade (10), the central tube (40) having first and second ends (41, 42) that communicate with the tank (30) so that the liquid (50) can move from the tank (30) into the central tube (40), and vice versa.
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