| 摘要 |
<p>A motor cooling system (10) for an electric motor (20) having a rotor (60), mounted on a rotor shaft (62) rotatable about a central axis and a stator (70), comprises a fluid nozzle (100) extending through an aperture disposed in said motor (20) having an inlet (104) oriented to allow a compressed cooling fluid, preferably compressed air, to expand rapidly therefrom and direct said cooling fluid circumferentially around said motor (20) interior. A plurality of exhaust ports (120) are provided to maintain a positive pressure differential between upstream (80) and downstream (90) chambers of said motor (20), thereby enhancing cooling fluid flow through the rotor-stator gap (72).</p> |
