Dirt and dust cyclonic separating apparatus

摘要

The cyclonic separating apparatus comprises a first cyclonic separating unit (310, 410; 510) including at least one first cyclone (102; 202; 312; 412; 512), a second cyclonic separating unit (320; 420; 520) located downstream of the first cyclonic separating unit (310, 410; 510) and including at least one second cyclone (130; 230; 322; 422; 522), and a third cyclonic separating unit (330; 430; 530) located downstream of the second cyclonic separating unit (320; 420; 520) and including at least one third cyclone (148; 248; 332; 432; 532). The separation efficiency of the second cyclonic separating unit (320; 420; 520) is substantially the same as the separation efficiency of either the first cyclonic separating unit (310; 410; 510) or the third separating unit (330; 430; 530). In a preferred embodiment, second and third cyclonic separating units can each comprise a plurality of individual cyclones arranged in parallel.