Fan for cooling motor of automobile car, has several blades distributed regularly around bowl which is moved in axial rotation where each blade is partially hollow at part situated directly near leading edge

摘要

The fan has several blades (3) distributed regularly around a bowl (2) which is moved in axial rotation. Each blade (3) is partially hollow at a part situated directly near a leading edge. Each blade has a cavity which extends in a sensibly longitudinal direction inside the blades. The blades are constituted by an assembly of one unit forming convex side and another unit forming concave side. Independent claims are also included for the following: (a) a cooling device (b) an automobile vehicle.