Patent ID: 6488485
Filing Date: 2002-12-03
Classification: F04D

Abstract:
A cooling fan for vehicles, which comprises a fan wheel (11) equipped with blades and an electric motor (12) that drives the fan wheel (11), a stator (13), and a rotor (16) that is supported in a rotationally fixed manner on a driven shaft (21), the rotor (16) is embodied as an external rotor with a bell-shaped pole housing (17) encompassing the stator (13), and that the fan wheel (11) is rotationally fixed in relation to the pole housing (17) and axially encompasses the pole housing at least partially and contacts an outer circumference of the pole housing (17) at a number of spaced contact points (29) in such a way that mechanical oscillations of the bell-shaped pole housing (17) are damped.