| 摘要 |
PROBLEM TO BE SOLVED: To provide a pump reduced in the generation of noise and vibration and shortened in self-priming time. SOLUTION: In a motor part of this pump, a rotor having a magnetic body in the inner periphery of a stator is supported freely to rotate by a support shaft arranged in the center of the motor part, and a water flow passage from a suction opening is provided near a bearing part of the rotor, and water is fed to a water feeding opening of a tank part by impellers provided in the rotor. The tank part, the pump part and the inner peripheral part of the stator are formed of an upper casing and a lower casing made of resin, and a part of the tank part wherein an upper wall surface and a side wall surface cross each other is formed with an inclined surface or an arc-like curved surface, and the water feeding opening is provided in the upper wall surface. COPYRIGHT: (C)2004,JPO
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