Axial fan, air-sending device, and refrigeration cycle apparatus

Abstract

An axial fan includes a hub and blades. The hub has a rotating shaft, and is configured to be driven to rotate. The blades are provided to the hub, and each have a front edge portion and a rear edge portion. In a state in which the blades rotate to generate an airflow, the front edge portion is placed most upstream in the airflow, and the rear edge portion is placed most downstream in the airflow. In a shape of the blades rotated and projected onto a meridian plane that covers shapes of the blades and a shape of the rotating shaft, the front edge portion has an outline represented by a front-edge projected portion having a first recess portion formed in a recessed shape that recedes upstream in the airflow, the rear edge portion has an outline represented by a rear-edge projected portion having a second recess portion formed in a recessed shape that recedes upstream in the airflow, and the first recess portion has at least a portion that is formed further radially inside than is the second recess portion.

Dependencies are inferred from the claim text.