| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a centrifugal pump capable of efficiently discharging air in a case by an impeller in self-priming operation, and capable of efficiently delivering liquid sucked in the case by the impeller in steady operation. <P>SOLUTION: This centrifugal pump 15 is a pump capable of discharging the air in the case 21 by a plurality of first blades 25 and capable of delivering the liquid sucked in the case 21, by arranging the plurality of first blades 25 in the impeller 23, by rotatably storing the impeller 23 in the case 21. The impeller 23 has the plurality of first blades 25 and has a plurality of second blades 27. The second blades 27 are arranged on the rotational center 26 side of the impeller 23 more than the first blades 25, and a blade height dimension H2 is set smaller than a blade height dimension H1 of the first blades 25. <P>COPYRIGHT: (C)2012,JPO&INPIT |
