The axial-flow fan, in particular for a cooling fan of a motor vehicle engine

摘要

An aeroacoustically optimized axial fan (1), in particular for a cooling blower of a motor vehicle engine, is obtained by the front edges (23) and the rear edges (25) of the crescent-shaped blades (15) of the fan impeller (7) in each case having a pronounced negative sweep (27) and then a pronounced positive sweep (29) like a bird's wing. IMAGE