Patent ID: 6264441
Filing Date: 2001-07-24
Classification: D06F,F04D

Abstract:
A pump for the drain outlet of washing machines, comprising a synchronous electric motor with a permanent-magnet rotor which is associated, by means of a flange, with a dome which forms a chamber for an impeller, further comprising an impeller with radial vanes which protrude from a perforated disk provided with a plurality of pressure-compensating vanes on a motor side of the disk, a dome which forms the chamber of the impeller, an intake duct which has an elliptical cross-section with a median axis which is parallel to an axis of the impeller but is axially offset on an opposite side with respect to a discharge duct, said discharge duct having an elliptical cross-section, with a radiused inlet which has the local internal configuration of said dome.