Turbine-driven automatic swimming pool cleaners

E - Fixed Constructions – 04 – H

Patent

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Details

E04H 4/16 (2006.01)

Patent

CA 2387419

An automatic pool cleaner having a turbine (10) which includes a housing (12) having a flow chamber (14) and chamber wall (16) with inlet and outlet ports (18, 20), a rotatably-mounted turbine rotor (22), and turbine vanes (28) each having a proximal end connected to the rotor and a distal end movable with respect to the rotor between extended positions adjacent to the wall and retracted positions spaced from the wall and closer to the rotor to allow passage of debris pieces of substantial size through the turbine. Some preferred embodiments are: curved vanes (28); vanes pivotably mounted to the rotor; and an eccentric rotor mount in the turbine chamber. Pivotably-mounted vanes (28) preferably have enlargements (30) at their proximal ends which are freely insertable into cavities (116) in the rotor; most preferably, each vane is symmetrical about a center line such that either end is able to serve as the proximal end in engagement with the rotor.

L'invention concerne un système de nettoyage automatique de piscine à turbine (10) comportant : un carter (12) à chambre d'écoulement (14) dont la paroi (16) est équipée de points d'admission et d'évacuation (18, 20); un rotor de turbine rotatif (22); et des pales de turbine (28) ayant chacune une extrémité proximale reliée au rotor et une extrémité distale, mobile par rapport au rotor entre une position déployée adjacente à la paroi et une position rétractée espacée de la paroi et plus proche du rotor pour laisser le passage à des débris de taille substantielle à travers la turbine. Parmi les variantes préférées, on peut citer : pales incurvées (28); pales montées pivotantes sur le rotor; et montage à rotor excentrique dans la chambre de turbine. Les pales pivotantes (28) s'élargissent de préférence (30) aux extrémités proximales, et ces parties élargies peuvent s'insérer librement dans des cavités (116) du rotor; de préférence encore, chaque pale est symétrique par rapport à une ligne centrale de sorte que l'une ou l'autre de ses extrémités puisse être l'extrémité proximale venant s'insérer dans le rotor.

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