Surface treating / cyclonic vacuum appliance with multiple cyclone cone arrangement

摘要

A surface treating appliance / vacuum cleaner 10 has a separating apparatus 12 (with an outer bin 14, an inner wall 16 and base 18) includes a first cyclonic separating unit 74 including at least one first cyclone, and a second cyclonic separating unit 76 located downstream from the first separating unit (Fig 7a, 74). Included are a plurality of second cyclones 120 arranged in parallel and divided into at least a first set of second cyclones arranged about an axis (see fig 7a), and a second set of second cyclones. The first set of second cyclones extends about the second set of second cyclones. Each second cyclone has a longitudinal axis (L1), with the longitudinal axes of the first set of second cyclones being arranged at a first angle to said axis, and the longitudinal axes of the second set of second cyclones being arranged at a second angle to said axis. The first angle is greater than the second angle. The third separating unit (78), extends around the second 76 and comprises a plurality of first, second, and third cyclones 162, (164), (166) set of cyclones. The individual cyclone components may be coned / tapered so as to provide wide and narrow portions; the wide portion having greater stiffness than the more flexible narrow portion.