AXIAL FLOW TYPE FAN STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide an axial flow type fan device capable of improving the efficiency of a fan by utilizing air just above a hub. SOLUTION: In this axial flow type fan device equipped with a hub having a top face, an outer-periphery face and a plurality of blades disposed on the outer-periphery face of the hub, a side inlet portion of axial flow type fan construction is constituted at upper side of the top face of the hub by being surrounded by the edge portion of the plurality of blades, and an edge portion of the plurality of the blades constitutes a side inlet face of axial flow type fan construction around the side inlet portion. COPYRIGHT: (C)2005,JPO&NCIPI