Abstract: A vane for a fan including a platform, a root and a blade. The platform has opposite outer and inner surfaces, and opposite upper and lower surfaces. The upper surface has a camber shape, and the lower surface has a concave shape corresponding to the camber shape of the upper surface. The root is fixed to the inner surface of the platform and adapted to be fixed to a hub of the fan. The blade is fixed to the outer surface of the platform at a position shifted toward the lower surface from a center line between the upper and lower surfaces.

Abstract: Damper disposition (8) mounted between two neighboring vanes (5) and which ncludes free inners (22) in housings (21) delimited by a radially external wall (16) slanted outwardly in the direction of the respective vane (5). The centrifugal forces produced by rotation of the disk of the rotor (4) move the inners (22) outside the housings (21) and forcibly apply them to the vanes (5) so as to dampen the vibrations, especially when considerable friction is produced against the outer wall (16).Application for turbo-engines and especially for the large vanes of input blowers.