FAN COMPRISING AN OUTER RIB AXIALLY POSITIONED WITH REGARD TO THE PERIPHERAL ANNULAR SKIRT

摘要

The invention relates to a fan (10) comprising: a central mounting core (12); blades (14) angularly distributed about the principal axis of rotation (A); a peripheral annular skirt (16), which is coaxial to the principal axis of rotation (A) and of which an inner cylindrical face is joined to the outer radial end of each blade (14) and is axially delimited by two end radially planes (Q1, Q2), and; an outer annular radial rib (22) that radially extends from the annular skirt (16) toward the outside of the fan (10). The invention is characterized in that the principal radial plane (P) of the radial rib (22) is axially positioned along the principal axis of rotation (A) between the two end radial planes (Q1, Q2) of the annular skirt (16) while situated at a distance from these two planes (Q1, Q2).