| 摘要 |
PROBLEM TO BE SOLVED: To provide a regeneration pump capable of being embodied in a small construction by shortening the overall length. SOLUTION: The regeneration pump is furnished with an armature 5 rotated by a motor 2 and an impeller 20 rotated interlocking with the armature 5. The armature body 51 other than the shaft 51a of the armature 5 is engaged with the impeller 20. The armature body 51 and impeller 20 are coupled together in such a way as capable of transmitting the torque through an engaging means consisting of a projection 53 and recess 21 capable of being engaged with each other on the same axis. The armature body 51 and impeller 20 are arranged adjacently.
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