AXIAL FAN WITH VANE WHEEL HAVING INCREASED PULLING POWER AND INCLUDING NON-TWISTED VANES

摘要

According to the invention, an increase in the pulling power of an axial fan, the blades of which are not twisted, is obtained by the arrangement of shutters, practically rigid, exhibiting a suitable width and inclination, in particular in THE AREAS OF DAWNS AT A LOWER PERIPHERAL SPEED AND AT LEVEL OF THE DAWN EDGE.