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1. 发明申请

WO1998021482A1 AXIAL FAN 审中-公开
标题翻译：轴风扇
公开(公告)号：WO1998021482A1
公开(公告)日：1998-05-22
申请号：PCT/JP1997004058
申请日：1997-11-07
申请人： DAIKIN INDUSTRIES, LTD. , SATO, Seiji , OHNISHI, Tadashi , ZHENG, Zhiming
发明人： DAIKIN INDUSTRIES, LTD.
IPC分类号： F04D29/38
CPC分类号： F04D29/384
摘要： An axial fan which comprises a plurality of vanes (2, 2, ...) provided on an outer periphery of a hub. A cross section of each vane (2) at any distance from the center of the fan is shaped in such a manner that a vane thickness gradually increases from a vane leading edge (2a) and gradually decreases toward a vane trailing edge (2b). L/L0 is set in the range of 0.27 to 0.35 where L designates a camber line length from the vane leading edge (2a) at a position where the vane thickness is maximum, and L0 designates a camber line length between the vane leading edge (2a) and the vane trailing edge (2b) at the above any distance. Thus an aerodynamic performance is prevented from being reduced even if an inflow angle of air relative to the vane (2) is varied.
摘要翻译：一种轴流风扇，包括设置在轮毂外周上的多个叶片（2,2）。每个叶片（2）的与风扇中心任何距离的横截面成形为使得叶片厚度从叶片前缘（2a）逐渐增加并且朝向叶片后缘（2b）逐渐减小。 L / L0设定在0.27〜0.35的范围内，其中L表示在叶片厚度最大的位置处来自叶片前缘（2a）的弯度线长度，L0表示叶片前缘（ 2a）和叶片后缘（2b）处于上述任何距离处。因此，即使空气相对于叶片（2）的流入角度变化，也防止空气动力学性能降低。

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