| 摘要 |
A motor cooling system 10 for and 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.
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