| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pump that suppresses the increase of variations in pump performance due to resin molding. <P>SOLUTION: The pump has an impeller 21 for sucking or discharging a liquid, a rotor 22 fixed to the impeller 21 and used for rotating the impeller 21, a stator 1 with a tooth 15 with a coil and a separating plate 3 separating the rotor 22 and the stator 1. The pump has a resin-molded stator 1. In the pump, the cylindrical outer peripheral surface 31 of the cylinder section of the separating plate 3 positioned between the rotor 22 and the stator 1 has a taper T2 along the central axis of the diameter of the cylinder section. In the pump, a projection 321 with the taper T2 smaller than that T2 of the cylindrical outer peripheral surface 31 is formed to a surface opposed to the inner peripheral surface of the tooth 15 of the cylindrical outer peripheral surface 31 of the separating plate 3. <P>COPYRIGHT: (C)2010,JPO&INPIT |
