ENGINE COOLING FAN ASSEMBLY BODY OF VEHICLE HAVING FAN HUB WITHOUT TORSION, CAPABLE OF REDUCING RADIATION NOISE CAUSED BY THE MOTOR BY APPLYING PREDETERMINED DEFLECTION TO A SLOT FOR THE HUB

摘要

PURPOSE: An engine cooling fan assembly body of a vehicle having a fan hub without torsion is provided to injection-mold with axial strength that a hub rib endures sufficiently vibration of a motor and to reduce radiation noise caused by the motor by applying predetermined deflection to a slot for the hub. CONSTITUTION: An engine cooling fan assembly body of a vehicle is composed of a fan having a hub and vanes extending radially and the hub formed in a cylinder unit extending to a shaft integrally fixed with the vanes and a front side(120) extending radially. The hub has convex and concave side units. A rib(110) is formed on the surface of the concave side unit. The rib is fixed to the inside and outer side of the front side of the hub and formed with a portion that is not supported between fixed areas. The inside of the front side of the hub is connected to the outside of the hub only through the hub rib.