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    • 44. 发明授权
    • Axial blower
    • 轴流鼓风机
    • US06296446B1
    • 2001-10-02
    • US09409072
    • 1999-09-30
    • Mitsuyoshi IshijimaTetsuya KoshitaniSatoshi Shimizu
    • Mitsuyoshi IshijimaTetsuya KoshitaniSatoshi Shimizu
    • F04D2938
    • F04D29/384F04D29/681Y10S416/02
    • An axial blower includes a cylindrical hub, a driving device for rotating the cylindrical hub through a rotational shaft, a plurality of vanes arranged to an outer peripheral surface of the cylindrical hub in a circumferential direction thereof, and a plurality of stream-line ribs each having a stream-line shape and provided at a leading edge portion of a negative pressure surface-side of each of the vanes in a range from an end portion of the leading edge portion towards a trailing edge portion of the vane. The stream-line ribs are formed integrally such that an outer surface of a cross section of each stream-line rib along a rotational direction of the axial blower forms a circular arc and a radius of a circular arc curve of the outer surface at a vane leading edge side is larger than a radius of a circular arc curve at a vane inner surface side.
    • 轴向鼓风机包括圆柱形轮毂,用于通过旋转轴旋转圆柱形轮毂的驱动装置,沿圆周方向布置到圆柱形轮毂的外周表面的多个叶片,以及多个流线肋条 具有流线形状,并且在前缘部分的端部朝向叶片的后缘部分的范围内设置在每个叶片的负压表面侧的前缘部分。 流线肋形成为一体,使得沿着轴向鼓风机的旋转方向的每个流线肋条的横截面的外表面形成圆弧,并且在叶片处形成外表面的圆弧曲线的半径 前缘侧比叶片内表面侧的圆弧曲线的半径大。