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    • 10. 发明授权
    • Existing air circulating fans by utilizing multi-directional blade angles
    • 现有的空气循环风机采用多方向叶片角度
    • US09528529B1
    • 2016-12-27
    • US14992088
    • 2016-01-11
    • Joseph Kraft
    • Joseph Kraft
    • F04D25/08F04D29/38F04D25/06F04D29/34
    • F04D29/384F04D25/088
    • An improvement on the currently available air circulation fans by altering the shape of the fan blade to increase airflow distribution. Ceiling fans and other air circulating fans typically only force airflow in an axial direction. This device is designed to expand the area of distribution of desired air circulation by the alteration of a distal portion of a fan blade being placed on an angle relative to a proximal portion. This improved fan blade comprises a proximal fastening portion, a middle axially-directed air flow portion and a distal angularly-directed airflow portion. The addition of the angled portion of the fan blade is designed to significantly improve airflow distribution and thereby increase the efficiency and effectiveness of the complete fan unit without requiring any other significant modifications of the fan motor or other mechanics.
    • 通过改变风扇叶片的形状来改善当前可用的空气循环风扇以增加气流分布。 天花板风扇和其他空气循环风扇通常仅在轴向方向上强制气流。 该装置被设计成通过相对于近端部分以一角度放置的风扇叶片的远侧部分的改变来扩大所需空气循环的分布面积。 这种改进的风扇叶片包括近端紧固部分,中间轴向定向气流部分和远端有角度的气流部分。 风扇叶片的倾斜部分的添加被设计为显着改善气流分布,从而提高整个风扇单元的效率和有效性,而不需要风扇马达或其他机构的任何其他重大修改。