| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To directly introduce oil used to cool an electric motor and having small air bubble content into a suction port. <P>SOLUTION: This oil cooling type electric motor driving type vane pump device is composed of the electric motor 1 and a vane pump 2 rotated and driven by the electric motor 1 and has the electric motor 1 cooled by a part of hydraulic fluid discharged from the vane pump 2. An oil jacket 12 is provided in the outermost shell part of the electric motor 1. Oil discharged from the vane pump 2 is introduced into the oil jacket 12, and oil used to cool the electric motor 1 is directly returned into the suction port 25 of the vane pump 2, thereby introducing oil having small air bubble content into the vane pump 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
