PURPOSE: For preventing the clog of a filter, to remove through centrifugal separation a considerable amount of the dust contained in the two air currents generated by dividing the air having flown in through an air inflow port with a bent guide plate while making rotation thereof along said guide plate.
CONSTITUTION: A bent guide plate 13 is provided between an air inflow port 7 and a dust removing filter 5 with the central portion 13a thereof set between said air inflow port 7 and dust removing filter 5. The air taken in through said air inflow port 7 divided in two right and left air currents A1 and A2 by said bent guide plate 13. Said air currents A1 and A2 are rotated counterclockwise or clockwise by said guide plate 13. The course dust particles are transferred onto the wall face side of a case 3 as indicated by arrows D1 and D2 by centrifugal force and collected in a dust collecting box 15. Thereby, the load of said dust removing filter 5 decreases. Thus, the clog thereof can be prevented considerably.
MISHIMA YASUHIRO
SANNOMIYA TSUGUMI
| JPS4318851B1 | ||||
| JPS4329920Y1 | 1968-12-07 | |||
| JPS4311192Y1 | 1968-05-15 | |||
| JP49146508B |