Airflow redirection device for motor fan unit of vehicle, has fins with leading edge, trailing edge and concavity directed towards air flow, where leading edge is in elliptic shape, and trailing edge is in predetermined direction

摘要

The device has fins (32) with a leading edge (34) and a trailing edge (36), where the leading edge is in elliptic shape, and the trailing edge is in a predetermined direction. The fins have a concavity directed towards air flow, where the fins form four or five rows in a form of concentric. The fins have an interior surface (40) and an exterior surface (42), where a section of the edge (34) is located between two ends that are points (A, B). The points are located on the interior surface and exterior surface, respectively. An independent claim is also included for a motor fan unit comprising an airflow redirection device.