| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a cyclone separation device, etc. capable of reducing noises without sacrificing the separation performance and without increasing the mass largely.SOLUTION: A cyclone separation device, etc. comprise: a first wall which has an opening and forms a whirling chamber where the dust-containing air flown in through an inflow port is whirled; a second wall which is provided outside the opening of the first wall and forms a dust collection chamber to accommodate outside the opening the dusts centrifuged from the dust-containing air; and a first thick wall part provided to a side of the second wall such that peripheral parts of the opening of the first wall, including the edges of the opening, become thicker than the other parts of the first wall. In the configuration, the first thick wall part is formed from the second wall side and includes an aperture to shift the phase of pressure fluctuation in the first thick wall part such that the first thick wall part does not penetrate the first wall.</p> |
