Abstract: The invention relates to a ventilation device for a vehicle ventilation, heating and/or air-conditioning system, including at least one housing that includes at least one wall defining an inner volume in which at least one radial propeller capable of being rotated and at least one guide member are received, the radial propeller and the guide member being configured to generate an air flow having a general direction parallel to an axis of rotation of the radial propeller between an air inlet of the radial propeller and an air outlet formed in the wall of the housing of the ventilation device, at least a part of the wall of the housing being configured to straighten the air flow at the outlet of the radial propeller. The guide member is configured to direct the air flow towards the axis of rotation of the radial propeller.

Abstract: A support frame for a ventilation device for cooling a fluid passing through a cooling circuit of a motor vehicle is disclosed. The frame has an opening defining an opening perimeter configured to receive an impeller, and a central support positioned at the center of the opening and shaped to receive a motor actuating said impeller to generate a ventilation flow. The central support is attached, through said opening, to the frame by at least six holding arms, at least three of which are placed in a first plane or cone of revolution, and another three of which are being placed in a second plane or cone of revolution, different from the first. The first holding arms are each separated from any second holding arm at the opening perimeter by a space covering at least a distance corresponding to a chord of said first holding arms.