Impeller and blowing apparatus including the same

Abstract

An impeller includes a body portion having a tubular shape and a plurality of blade portions. The body portion is rotatable about a center axis. The plurality of blade portions protrude in a radial direction from an outer circumferential surface of the body portion and are arranged at intervals in a circumferential direction. When the blade portions rotate about the center axis, the impeller blows air in an axial direction. Each of the blade portions extends in the circumferential direction while being inclined to an upstream side in an air blowing direction toward a front side in a rotation direction. Each of the blade portions is curved to be convex toward a downstream side in the air blowing direction at the front side in the rotation direction with respect to a center in the circumferential direction.

Dependencies are inferred from the claim text.