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Invention Grant
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

Blade provided with a resonator to reduce the drag movements of said blade, and a method implemented by said blade
Abstract:
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.
Abstract(Chinese):

描述了从叶片（10）的根部（11）纵向延伸到叶片（10）的自由端（12）的叶片（10），叶片（10）设置有并入的谐振器（20），用于 降低叶片（10）的牵引运动（F1，F2），共振器（20）设置有部分填充有液体（50）的封闭罐（30）。 此外，谐振器（20）包括浸在罐（30）内的中心管（40），罐（30）和中心管（40）沿叶片（10）的纵向方向（Y）布置， 所述中心管（40）具有与所述罐（30）连通的第一和第二端（41,42），使得所述液体（50）能够从所述罐（30）移动到所述中心管（40）中，反之亦然 。

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