Axial fan assembly for a vehicle cooling system

An axial fan assembly (10) for a vehicle cooling system includes an axial flow fan (20) between an inlet stator (18) and an outlet stator (18). The inlet stator (18) has inlet stator vanes which extend outwardly from a first inner support ring. Each inlet stator vane has a downstream edge which has a tangent which is oriented at a first variable angle with respect to a first end plane which is perpendicular to a fan axis. The first variable angle increases with increasing distance from the first inner support ring. The outlet stator (22) has outlet stator vanes which extend outwardly from a second inner support ring. Each outlet stator vane has an upstream edge which has a tangent which is oriented at a second variable angle with respect to a second end plane which is perpendicular to the fan axis. The second variable angle decreases with increasing distance from the second inner support ring.