Abstract: A propeller fan includes a blade configured to rotate around a predetermined rotation axis, and a ring connected to a blade end of the blade. The blade includes a curved portion on a side on which the blade end is located. The curved portion has, in a rotational radial direction of the blade, a cross-sectional shape projecting in a convex manner toward a side on which a pressure surface is located. In the curved portion, when a height from a position of a blade root on a camber line in a direction along the predetermined rotation axis is an axial-direction height and a position at which the axial-direction height becomes maximum in the rotational radial direction is a maximum curve position, the axial-direction height at the maximum curve position is maximum on a side on which a trailing edge of the blade is located.

Abstract: A propeller fan includes a hub rotatable about an axis, and a plurality of blades extending radially outward from an outer peripheral surface of the hub. A ring surrounds the plurality of blades and is connected to each blade tip. A maximum camber location is on a camber line where a distance from a chord line to the camber line in an arc-shaped cross section of each blade about the axis is maximum. An axial height is from a trailing edge to the camber line in a direction along the axis. Each blade has a first portion provided inside in the radial direction of rotation and whose axial height at the maximum camber location is substantially constant, and a second portion provided outside in the radial direction of rotation and whose axial height at the maximum camber location increases toward the blade tip.