PROPELLER FAN AND BLOWING UNIT

摘要

PROBLEM TO BE SOLVED: To improve the blowing efficiency of a propeller fan.SOLUTION: A propeller fan (50) includes a rotor blade hub (51) to be driven to rotate around a rotation axis (O), and rotor blades (52) provided on the outer periphery of the rotor blade hub (51). The rotor blades (52) each have a rotor blade body (52a) protruded from the outer peripheral face of the rotor blade hub (51), and a rib (52b) formed at the outer peripheral edge of the positive pressure surface of the rotor blade body (52a) while extending along the outer peripheral edge of the rotor blade body (52a).SELECTED DRAWING: Figure 7