公开(公告)号：US20170265698A1

公开(公告)日：2017-09-21

申请号：US15464718

申请日：2017-03-21

Applicant: Dyson Technology Limited

Inventor： Rowan John SHARPLEY ,  Michael Philip DAY ,  Glyn Geoffrey REES-JONES

IPC: A47L9/12 ,  B01D46/52 ,  B01D46/00

CPC classification number: A47L9/12 ,  A47L9/0081 ,  A47L9/122 ,  B01D46/0005 ,  B01D46/521 ,  B01D2279/55

Abstract: A vacuum cleaner that includes a suction motor and a filter assembly. The filter assembly surrounds at least part of the suction motor and has a frame to which a filter medium is attached. The filter medium is spaced from a wall of the frame such that an arcuate passageway is defined between the filter medium and the frame. A part of the air expelled by the suction motor enters a first end of the passageway and moves around the passageway in a clockwise direction. A further part of the air expelled by the suction motor enters a second end of the passageway and moves around the passageway in a counter-clockwise direction. Air within the passageway then passes through the filter medium.