Stromaufwärts-Stator eines Gebläses

摘要

A fan unit for the heat-exchange assembly of a motor vehicle comprises at least one rotor (18) which is disposed adjacent the front surface of the heat-exchange assembly (12) and includes a set of main blades (20) the chords (C)of which are inclined to the axis of rotation of the rotor (18). The unit (1) comprises a stator structure (24; 24a; 24b) which includes a set of auxiliary blades (26) separate from and disposed in front of the respective rotor (18) with reference to the direction of the air-flow, the auxiliary blades (26) being keyed in a manner such as to guide the air-flow towards the respective rotor (18) in a direction substantially parallel to the chords (C) of the main blades (20) when the rotor is in the stationary condition.