| 摘要 |
A centrifugal blower is designed such that D/R, which is a ratio of a radius D of an air inlet to a radius R of an impeller, ranges from 85% to 87%, and such that r/R, which is a ratio of a radius r of a cross-section of a bell mouth of the centrifugal blower to the radius R of the impeller, ranges from 8% to 10%. With such a structure, a geometric size of the bell mouth is optimized, thus enhancing the blowing efficiency of the centrifugal blower. As a result, superior performance of the centrifugal blower can be ensured. |
