| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a DC pump capable of reducing mechanical loss, eliminating constitution such as a shaft, bearing and the like, lengthening a lift of a pump, saving costs, needing no high-level machine work for generation of dynamic pressure, having no shaft dispersion of a motor, and reducing vibration and noise. <P>SOLUTION: In the DC pump, one salient pole 9 that is positioned farthest away from the delivery port 8 is in the shape in which a gap between it and a magnet rotor 2 decreases toward the outer direction of the rotation of the magnet rotor 2. The other salient poles are all in the shape in which gaps decreases toward the rotational direction. <P>COPYRIGHT: (C)2003,JPO |
