| 摘要 |
PROBLEM TO BE SOLVED: To provide a canned motor pump capable of efficiently discharging heat generated in a coil with a small load. SOLUTION: In this canned motor pump, a rotor 12 is formed with a flow passage 24 to surround a fixed shaft 13 and a flow passage 24 passes through both end surfaces of the rotor 12 in the axial direction. A pump part side and an opposite pump part side of the flow passage 24 are respectively formed with a pump part side bearing housing part 24a and an opposite pump part side bearing housing part 24b by recessing side surfaces of the flow passage 24. The rotor 12 is rotatably supported in relation to the fixed shaft 13 by a pump part side bearing 21 and an opposite pump part side bearing 22 housed in the pump part side bearing housing part 24a and the opposite pump part side bearing housing part 24b. A pump part side of the opposite pump part side bearing housing part of the flow passage 24 is formed with an impeller housing part 24c, and a circulating impeller 23 is fixed to the rotor 12. COPYRIGHT: (C)2006,JPO&NCIPI
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