| 摘要 |
PROBLEM TO BE SOLVED: To provide a centrifugal fan device having the excellent balance of suction capacity even when sucking the gas from a suction passage extended one side in relation to a centrifugal fan, and capable of lowering the noise and increasing the capacity and causing no surging. SOLUTION: An air flow flowing in a passage area W2 formed by a partitioning guide member 23 inside a suction passage 22 reaches the depth of the suction passage 22, and it is sucked into a suction port 10. A multiblade fan 1 can sufficiently suck the gas from an area in the depth of the suction passage 22, and the noise is thereby lowered and the capacity is increased, and surging is hard to be generated. Previous turning is given by a curved part 23a of the partitioning guide member 23. |
