DISPOSITIF DE REFROIDISSEMENT POUR ALTERNATEUR DE VEHICULE AVEC DEBIT D'AIR VARIABLE

摘要

The device has a ventilator (10) integrated to a rotor (4) which is mounted on a rotating shaft (2). The shaft is carried by bearings (8, 9) having air circulation inlets (81, 82). A modifying unit (6) modifies an air absorption surface of inlets, according to a speed of the rotor. The modifying unit has a membrane to close the inlets, and is made from a flexible and deformable material.