Highly efficient autonomous vacuum cleaner
First Claim
1. A vacuum cleaner comprising 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), wherein said turbine (T) comprises a set of blades (P) and a nozzle (1) comprising 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, and wherein said diverging downstream portion (12) is provided with longitudinal internal partitions (13) for subdividing and slowing down the flow of air.
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Accused Products
Abstract
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.
53 Citations
12 Claims
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1. A vacuum cleaner comprising 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), wherein said turbine (T) comprises a set of blades (P) and a nozzle (1) comprising 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, and wherein said diverging downstream portion (12) is provided with longitudinal internal partitions (13) for subdividing and slowing down the flow of air.
- View Dependent Claims (2, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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3. A vacuum cleaner wherein the said diverging downstream portion (12) communicates with the outside via side orifices (10) provided in the wall of the box of the nozzle (1).
Specification