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    • 1. 发明申请
    • Axial flow fan
    • 轴流风机
    • US20050207894A1
    • 2005-09-22
    • US11081082
    • 2005-03-16
    • Se-Young ParkKyung-Seok Cho
    • Se-Young ParkKyung-Seok Cho
    • F04D29/32F04D29/38B63H1/16
    • F04D29/384F04D29/326Y10S416/02Y10S416/05
    • The present invention relates to an axial flow fan which prevents the deformation of blades even when rotated at high speed, thus promoting the structural stability. The axial flow fan includes a hub and a plurality of blades, which are arranged along a circumferential outer surface of the hub in a radial direction such that the direction of a sweeping angle of each of the blades alternately changes between a blade root and a blade tip. A chord length, which is the length from a leading edge to a trailing edge of the blade, gradually reduces from the blade root to an intermediate portion of the blade, while the chord length gradually increases from a predetermined position on the intermediate portion of the blade to the blade tip.
    • 轴流风扇技术领域本发明涉及一种即使在高速旋转时也能够防止叶片变形的轴流风扇,从而提高了结构稳定性。 轴流风扇包括轮毂和多个叶片,其沿着径向方向沿着轮毂的周向外表面布置,使得每个叶片的扫掠角度的方向在叶片根部和叶片之间交替变化 小费。 从叶片的前缘到后缘的长度的弦长度从叶片根部逐渐减小到叶片的中间部分,而弦长从中间部分的预定位置逐渐增加 刀片到刀片尖端。
    • 3. 发明授权
    • Fan and shroud assembly
    • 风扇和护罩总成
    • US06863496B2
    • 2005-03-08
    • US10373075
    • 2003-02-26
    • Kyung-Seok ChoOk-Ryul MinChang-Ho ParkSe-Young Park
    • Kyung-Seok ChoOk-Ryul MinChang-Ho ParkSe-Young Park
    • F04D29/52F04D29/16F04D29/66F01D11/02
    • F04D29/164F04D29/326F04D29/526F04D29/685
    • A fan and shroud assembly includes a fan having a hub rotating around one shaft and a plurality of blades extending outwardly from the hub, a shroud encompassing the fan to adjust airflow by rotation of the fan, a guide ring portion located at a position where a predetermined gap exists between the shroud and a circumference connecting end tips of the blades so that the fan is supported by the shroud and rotates, and a plurality of swirl prevention units integrally formed with the guide ring portion to prevent a vortex from proceeding along the circumference in the predetermined gap, each swirl prevention unit having a shape in which the length of a circular arc passing through each of the swirl prevention units with respect to the center of the shroud decreases as the arc is closer to the center of the shroud.
    • 风扇和护罩组件包括具有围绕一个轴旋转的轮毂和从轮毂向外延伸的多个叶片的风扇,包围风扇以通过风扇旋转来调节气流的护罩;导向环部分,其位于 护罩与连接叶片端部的圆周之间存在预定间隙,使得风扇由护罩支撑并旋转,并且与导向环部分一体形成的多个涡流防止单元以防止涡流沿着圆周方向 在预定间隙中,每个涡流防止单元具有这样一种形状,其中通过每个涡流防止单元的圆弧相对于护罩的中心的长度随着电弧更靠近护罩的中心而减小。