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    • 1. 发明授权
    • Axial-flow fan
    • 轴流风机
    • US08091177B2
    • 2012-01-10
    • US12779680
    • 2010-05-13
    • F. Raymond CotéMark D. CaplanSebastian Hansen
    • F. Raymond CotéMark D. CaplanSebastian Hansen
    • F04D29/38
    • F04D29/329Y10T16/655
    • A fan includes a hub and blades. A first edge of each blade is proximate an open end of the hub. A first rib is coupled to the hub and substantially aligned with a first plane intersecting the central axis and an intersection of the first edge of the first blade with the hub. The first plane is angularly spaced from a reference plane intersecting the central axis and an intersection of the first edge of the second blade with the hub. An angular spacing between the first plane and the reference plane defines one sector. A second rib is aligned with a second plane angularly positioned between the first plane and the reference plane at a location less than or equal to about (1/nR−0.05) sectors from the first plane, in which nR equals the number of ribs divided by the number of blades.
    • 风扇包括一个轮毂和一个叶片。 每个叶片的第一边缘靠近轮毂的开口端。 第一肋连接到轮毂并且基本上与与中心轴线交叉的第一平面和第一叶片的第一边缘与轮毂的交叉点对准。 第一平面与与中心轴线相交的参考平面与第二叶片的第一边缘与轮毂的交点成角度地间隔开。 第一平面和参考平面之间的角度间隔定义一个扇区。 第二肋与位于第一平面和参考平面之间的第二平面对齐,该第二平面位于距离第一平面小于或等于约(1 / nR-0.05)个扇区的位置处,其中nR等于分割的肋数 通过刀片数量。