| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a lubrication/cooling structure of an electric motor which can enhance the lubrication performance and cooling performance, without causing increase in the rotational friction of a rotor, by preventing a large amount of lubrication/cooling liquid from flowing into the air gap between a stator and a rotor. <P>SOLUTION: An annular stator 14 is fixed to a housing 11 and a rotor 15 is arranged on the inner circumferential side of the stator 14 via an air gap G. A rotor shaft 16 for supporting the rotor 15 is supported on a support wall 60 via a bearing 17a. A supply port 63 for delivering a lubrication/cooling liquid from the rotor shaft 16 into an electric motor 2 is formed, at a position closer to the rotor 15 side than to the bearing 17a on the rotor shaft 16. An annular guide member 67a, extending from the bearing 17a up to a region on the radial outside of the supply port 63, is provided at a position of the support wall 60 on the outer circumferential side of the bearing 17a. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
