| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a centrifugal blower capable of suppressing reduction of fan efficiency caused by a leak flow. <P>SOLUTION: A bell mouth 25 has a bell mouth body 22, a belt 26 wound around an outer circumferential surface 22s of the bell mouth body 22 along the circumferential direction, and a belt-shaped member 28 including a plurality of walls 27 connected to the belt 26. The plurality of walls 27 is arranged at predetermined interval along the circumferential direction of the outer circumferential surface 22s. Each of the walls 27 is erected from at least one of the outer circumferential surface 26s of the belt 26 and the outer circumferential surface 22s of the bell mouth body 22, and is extended along the outer circumferential surface 22s of the bell mouth body 22 from the front F in the axial direction toward the rear R so as to be substantially parallel in the axial direction and in the radial direction of the bell mouth 25. <P>COPYRIGHT: (C)2013,JPO&INPIT |
