| 摘要 |
PROBLEM TO BE SOLVED: To provide a shaftless pump stably operating with preventing inability to drive and inability to flow due to tangle of fibers and the like. SOLUTION: An impeller 3 is rotatably arranged in a pump chamber S1 partitioned by a partition 10. A magnet 16 fixed on a back surface side of the impeller 3 and a magnet 15 rotated by a motor (drive source) 2 are put to face each other via the partition 10. The impeller 3 is abutted on the partition 10 via a thrust pad 17 fixed on a back surface side center part thereof. A hemispherical recess part 17a is formed on the thrust pad 17. A hemispherical projection part 10a is formed on the partition 10.The hemispherical recess part 17a and the hemispherical projection part 10a are fitted via a gapδto construct a shaftless pump 1. COPYRIGHT: (C)2005,JPO&NCIPI
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