Propeller fan, blower with propeller fan, air conditioner with propeller fan, outdoor unit with propeller fan, and outdoor unit for water heater with propeller fan

摘要

A propeller fan 1 that can achieve both noise reduction by suppressing airflow leakage and high efficiency by increasing the amount of blown air, and is provided on the boss 2 including the rotation axis O and the outer periphery of the boss 2. It has a plurality of wings 3 and a bell mouth 9 arranged so as to surround each of the plurality of wings 3 on the trailing edge side. The bent portion 13 is provided, and the bent portion of the wing on the inside of the bell mouth is set so as to be gentler than the bent portion of the wing on the outside of the bell mouth.