| 摘要 |
PROBLEM TO BE SOLVED: To provide a cyclone airflow vacuum cleaner with a main filter for effectively filtering residual contaminants from the suction airflow between a cyclone airflow chamber and a motor assembly, in which airflow is not extremely limited and occlusion does not occur at an early stage. SOLUTION: A cyclonic airflow dirt and dust separating chamber (54) is defined in the upright housing section. A suction source (E) sucks air and entrained dirt, dust, and other contaminants through a main suction opening (26) formed in the underside of the nozzle and into the cyclonic airflow chamber (54). The cyclonic airflow chamber causes the suction airstream to travel in a cyclonic path such that the entrained contaminants are separated therefrom and deposited into a dirt container (52) that defines the chamber (54). A main filter element (K) filters out residual contaminants from the suction airstream between the chamber and the suction source. A final filter assembly (F) filters the suction airstream discharged by the suction source to ensure that the air discharged into the atmosphere is free from the contaminants introduced into the airstream by the suction source itself. COPYRIGHT: (C)2010,JPO&INPIT
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