AXIAL FAN FOR COOLING FAN MODULE

摘要

PROBLEM TO BE SOLVED: To provide a fan designed to overcome drawbacks of the prior art fans.SOLUTION: An axial fan for a cooling fan module has a cup-shaped central hub with a front wall intended to be connected to a rotor of an electric motor at connection points and with a side wall from which a plurality of outer blades extend. At least one transverse opening is provided in the front wall of the hub between each of the connection points and the side wall, the opening extending in the circumferential direction relative to the axis of the hub beyond the associated connection point in both directions, so that the vibrations transmitted during operation from the motor to the front wall of the hub are propagated towards the side wall of the hub so as to follow a path which is longer than a radial path.