VENTILATION DEVICE MODULE FOR A MOTOR VEHICLE COOLING MODULE, VENTILATION DEVICE COMPRISING SUCH A MODULE, AND COOLING MODULE FOR A MOTOR VEHICLE COMPRISING SUCH A VENTILATION DEVICE

The invention relates to a module, comprising:—at least one, preferably only one, tangential turbomachine (--) comprising a bladed wheel (--) and a motor (--) for rotationally driving the bladed wheel (--),—a frame (--) forming an opening (--), preferably only one opening,—a shut-off means (--) designed to selectively shut off the opening (--), the shut-off means (--) having at least two regions which, in contact in a position of the shut-off means (--) in which the opening (--) is left free, are at a distance apart in a position in which they shut off the opening (--).