| 摘要 |
PURPOSE:To smoothly perform a suction or exhaust action in adjoining fans themselves, by setting up a lot of Silocco fans together with a rotating shaft, while installing an expansive space part and a minute space part jointly in every spot of a tubular barrel corresponding to each fan. CONSTITUTION:Each Silocco fan 2 is provided with a tubular barrel 5 surrounding the fan, and at the space formed between fans 2, there are provided with an expansive space part 6 and a nonexpensive space part, namely, a minute space part 7 capable of producing a frictional heating action with air corresponding to respective fan 2. With this constitution, plural fans are properly coupled with one another and made into the promotion of being multistepped.
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