| 摘要 |
PROBLEM TO BE SOLVED: To provide a centrifugal pump equipped with an impeller having a structure which materializes easy finishing work of the inside surface of the impeller and favorable surface roughness when manufacturing a pump. SOLUTION: In the centrifugal pump, while arranging a plurality of blades 4... in a main board 3, an impeller 2 in which a side board 5 is disposed across a blade 4 to be opposite to a main board 3 is provided to a spindle 1. The main board 3 and blades 4 of the impeller 2, and the side board 5 of the impeller 2 are separately formed. A space S through which liquid can be circulated is provided to an opposed surface between the blade 4 and the side board 5. COPYRIGHT: (C)2005,JPO&NCIPI
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