| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem of oil which is not sufficiently provided into a shaft because the strong centrifugal force is generated with the high-speed rotation (10000 rpm or more) of a motor for an electric automobile. <P>SOLUTION: Oil pumped up by an oil pump is fed by pressure from one end of an oil passage 29 formed in a first motor shaft 22, an oil passage 39 formed in a second motor shaft 32, and an oil passage 69 formed in an intermediate shaft 60 through an oil passage 130. These oil passages 29, 39 and 69 are connected to an oil passage for supplying the oil to each bearing part of the first motor shaft 22, the second motor shaft 32 and the intermediate shaft 66, and the oil is securely provided to each bearing part. <P>COPYRIGHT: (C)2003,JPO |
