| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a centrifugal blower 1 having structure realizing good workability and maintenanbility for solving a problem of reduction in blowing efficiency due to turbulence of flow in the centrifugal direction caused by collision of a circulation flow 15 against a main flow 17 flowing in from an intake body 8 to an impeller 6. <P>SOLUTION: The centrifugal blower 1 is provided with a casing 7 surrounding the impeller 6, and in an intake opening 2, the intake body 8 is installed. Since the intake body 8 is provided a cylindrical part 9, a bellmouth-shaped part 10 having an inside diameter increasing from the cylindrical part 9 to the upstream side, and a bellmouth-shaped part 11 having an inside diameter increasing from the cylindrical part 9 to the downstream side and divided into three or more sections in the circumference direction, the intake body 8 can be mounted to a case after assembling the impeller 6. Consequently, blowing performance improvement effect can be expected. <P>COPYRIGHT: (C)2008,JPO&INPIT |
