Device for separating solid or liquid particles from a...

A - Human Necessities – 47 – L

Patent

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Details

A47L 9/16 (2006.01) A47L 9/00 (2006.01) A47L 9/10 (2006.01) B01D 45/14 (2006.01)

Patent

CA 2189127

The invention relates to a device for separating solid or liquid particles from a stream of gas in which the aperture (3') of a suction pipe (3) is substantially directed towards the axis of an impeller (9) and the suction pipe (3) is surrounded by a dust collecting container (4). To improve phase separation especially in a vacuum cleaner in which the dust collecting container is fitted upstream of a dust bag, there is an axial aperture in the impeller (9) and/or a straight aperture (10) from the dust collecting container to the impeller (9). This generates an air vortex in the region of the opening of the suction pipe which carries the particles outwards where they are further transported into the dust collecting container by a secondary vortex induced therein.

L'invention concerne un dispositif pour la séparation de particules solides ou liquides dans un courant gazeux, dans lequel un conduit d'aspiration (3) est orienté, par son ouverture (3'), sensiblement dans l'axe d'une turbine (9), ledit conduit d'aspiration (3) étant entouré par un récipient collecteur de poussière (4). En vue d'améliorer la séparation de phases, notamment dans un aspirateur de poussière, dans lequel le récipient collecteur de poussière est agencé en amont d'un sac à poussière, il est prévu une ouverture axiale de la turbine (9) et/ou une ouverture rectiligne (10) du récipient collecteur de poussière vers la turbine (9). Ceci entraîne la formation, dans la zone de l'ouverture du conduit d'aspiration, d'un tourbillon d'air qui transporte les particules vers l'extérieur, où elles continuent d'être acheminées dans le récipient collecteur de poussière, sous l'effet d'un tourbillon secondaire formé dans ledit récipient.

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