| 摘要 |
PROBLEM TO BE SOLVED: To provide a DC pump with reduced mechanical loss, a long service life, low cost, and needing no high-level machine work when balancing by dynamic pressure. SOLUTION: The DC pump is characterized in being equipped with a pump casing 4 provided on its periphery with a suction port 7 for sucking fluid into a pump chamber, and a discharge port 8 for discharging the fluid, and housing an armature which has a plurality of teeth with salient poles formed at the tip ends wound therearound, a ring-like magnet rotor 2 which is opposed to the salient poles and rotates around the salient poles, an impeller 1 having impellers 1 formed therearound and integrally formed with the magnet rotor 2, and the impellers 1, and in having an outer peripheral magnetic body 9 arranged on the outer peripheral side of the magnet rotor 2, and an inner peripheral magnetic body 10 on the inner peripheral side of the magnet rotor 2, on the line connecting the discharge port 8 and a shaft 6. COPYRIGHT: (C)2004,JPO
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