| 摘要 |
PROBLEM TO BE SOLVED: To provide a long-life motor-driven pump capable of reducing the channel resistance by eliminating bearings in the channel at an intake and a discharge openings of a fluid. SOLUTION: The channel is formed inside a motor with a stator 12 and a rotor 11 stored in a frame 13. The rotor 11 has a magnetic material 15 in the outer peripheral part and plural blades 16 in the inner peripheral part. The outer peripheral part of the rotor 11 is rotatably held by the frame or the stator 12 via a bearing 20.
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