Electrically driven pump for the maintenance of swimming pools

Details Electrically driven pump for the maintenance of swimming pools Electrically driven pump for the maintenance of swimming pools

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 13/14 (2006.01) A01K 61/00 (2006.01) E04H 4/12 (2006.01) F04D 1/06 (2006.01) F04D 13/06 (2006.01) F04D 29/58 (2006.01)

Patent

CA 2502838

The invention concerns a dual pump, comprising an electric motor (18) including a drive shaft, the shaft including, at each of its axial ends, a shaft output (21, 22), and two pump impellers, each shaft output driving a respective pump impeller, one first of the pump impellers (23) operating at low pressure and high flow rate, and the second of the pump impellers (30) operating at higher pressure and lower flow rate. The water pumped by the second pump impeller (30) is drawn proximate the outlet of the first pump impeller (23) and returns to the inlet of the second pump impeller. The drawing point is situated in a low pressure pump chamber, upstream of the low pressure outlet (16). The invention is applicable to swimming pool maintenance.

L'invention concerne une pompe double. Elle se rapporte à une pompe qui comporte un moteur électrique (18) ayant un arbre d'entraînement, l'arbre pré­sentant, à chacune de ses extrémités axiales, une sortie d'arbre (21, 22), et deux roues de pompage, chaque sortie d'arbre entraînant une roue respective de pompage, une première des roues (23) fonctionnant à basse pression et grand débit, et la seconde des roues (30) fonctionnant à plus haute pression et plus faible débit. L'eau pompée par la seconde roue de pompage (30) est soutirée à proximité de la sortie de la première roue (23) de pompage et rejoint l'entrée de la seconde roue. L'emplacement de soutirage se trouve dans un corps de pompe à basse pression, en amont de la sortie de basse pression (16). Application à l'entretien des piscines.

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