PROPELLER FAN

摘要

Provided is a propeller fan comprising a hub fitted on a spindle, and a plurality of wings mounted radially on the hub for blowing a wind in the spindle direction.  In a first region of the wing from the spindle to a predetermined radius, the edge line of the maximum camber in the cylindrical section of the wing, which is cut from the spindle along an arbitrary radius, is within 50 % of a wing chord length from a wing front edge.  In a second region of the wing from the predetermined radius to a wing outer-edge, the edge line of the maximum camber in the cylindrical section of the wing, which is cut from the spindle along the arbitrary radius, is connected at the predetermined radial position to the edge line of the maximum camber of the first region, and is positioned, as radially enlarged, on the side of a wing trailing-edge, so that the edge line is within 50 % of the wing chord length from a wing front edge at the wing outer-edge.