A - Human Necessities – 47 – L
Patent
A - Human Necessities
47
L
A47L 5/22 (2006.01) A47L 9/00 (2006.01)
Patent
CA 2359929
A vacuum cleaner includes a driven impeller that moves working air for the vacuum cleaner. A first housing includes a first wall and a second housing includes a second wall opposite the first wall, and an outlet for the working air. The impeller rotates and draws the working air through an opening and directs the working air radially outwardly toward the first wall and then through an annular passage formed between the first wall and the second wall. The annular passage restricts the flow of working air to provide back pressure on the impeller.
La présente invention concerne un aspirateur comportant une turbine motrice qui déplace l'air utile de l'aspirateur. Un premier boîtier comporte une première paroi et un second boîtier comporte une seconde paroi en regard de la première paroi, et une sortie d'air utile. La turbine tourne et prélève l'air utile par un orifice et l'oriente radialement vers l'extérieur en direction de la première paroi et ensuite à travers un passage annulaire formé entre la première paroi et la deuxième paroi. Le passage annulaire restreint l'écoulement d'air utile générant ainsi une contre-pression pour la turbine.
Shop Vac Corporation
Smart & Biggar
LandOfFree
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