Device for transmission of the movement to cooling fans of engines, equipped with means for stopping the fan in its idle condition

摘要

Device for transmission of the movement to a fan (1) for cooling the coolant in a motor vehicle, comprising means (21;141;31a) for supporting the fan (1) on which the fan (1) is mounted by means of an idle support (1a), means (3) for generating the movement, a first electromagnetic clutch (30), engagement of which produces rotation of the fan (1) at a number of revolutions equal to that of the movement generating means (3); also comprising means (50;150;250;350;450) for stopping rotation of the fan (1) in its idle condition.