公开(公告)号：US06217285B1

公开(公告)日：2001-04-17

申请号：US08906910

申请日：1997-08-06

申请人： Michihiro Kurokawa ,  Noriyuki Nabeshima ,  Kenji Ueyama ,  Katuyoshi Oki ,  Kenji Nasako

发明人： Michihiro Kurokawa ,  Noriyuki Nabeshima ,  Kenji Ueyama ,  Katuyoshi Oki ,  Kenji Nasako

IPC分类号： F04D2930

CPC分类号： F04D29/282 ,  F04D29/30 ,  Y10S416/05

摘要： An impeller for use in a centrifugal blower comprises a hub for receiving a driving torque at a central portion thereof, a shroud of a ring-like shape in plane formed with an opening for air intake at the center thereof and opposed to the hub across a required distance therebetween, and a plurality of vane members interposed between the hub and shroud as circumferentially spaced from one another at required intervals, the impeller having an arrangement wherein an leading edge of each vane member has varied angles (inlet angles) with respect to a tangent line thereat thereby conforming to inflow angles of an air flow guided by the vane member at different points of a span between the shroud and hub.

摘要翻译： 用于离心式鼓风机的叶轮包括用于在其中心部分处接收驱动扭矩的轮毂，平面上形成有环形形状的护罩，形成有用于在其中心进气的开口， 所需的距离，以及插入在轮毂和护罩之间的多个叶片构件，其以所需的间隔彼此周向间隔开，叶轮具有这样的布置，其中每个叶片构件的前缘相对于 切线线由此符合在护罩和轮毂之间的跨度的不同点处由叶片构件引导的空气流的流入角度。