| 摘要 |
The invention provides a vacuum cleaner comprising in particular a structure mounted on transport members (R, R') and carrying an electrically-driven turbine (T) for acting through a filter membrane (M) to establish suction in a collector (S) of particles picked up from the floor and entrained to the collector by a flow of air via a transfer duct (C), characterized in that said turbine (T) comprises a set of blades (P) and a nozzle ( 1 ) having a box constituted by an upstream portion ( 11 ) in the form of a volute centered on the axis of the blades and a diverging downstream portion ( 12 ) into which the upstream portion opens out and that communicates with the outside.
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