Patent ID: 8920143

Claim:
An electronically commutated DC motor for a liquid pump, the motor comprising: a motor housing; a stator yoke; a pump housing attached to the motor housing, the pump housing having a suction connection and a pressure connection; a plurality of axially parallel oriented stator poles, the stator poles being provided with an insulating body and a stator winding, the stator poles adjoining the stator yoke; a substantially disk-shaped pump rotor mounted rotatably in the pump housing, the rotor including an impeller having a plurality of pump vanes and a permanent magnet; a pump space defined in the pump housing; a dry space defined in the motor housing; a stator containing the stator poles, the stator windings and the stator yoke being disposed in the motor housing; a partition separating the pump space from the dry space, the partition being disposed in an axial gap between the pump rotor and the plurality of axially parallel oriented stator poles, wherein the stator is surrounded by a flexible foil, and at least a large part of the foil is disposed inside the motor housing radially around the stator windings; and fastening bushings protruding from the partition, wherein parts of the foil are disposed between the stator yoke and fastening bushings.