Cooled motor structure for cleaning device

Abstract From the Canadian patent

A cleaning device includes a housing which bounds an internal space, and an electric motor and bearings for the shaft of the rotor of the electric motor are accommodated in such space. A blower element shares in the rotation of the shaft and advances air from the exterior of the housing through the space and back to the exterior. A partitioning wall subdivides the space into separtate compartments one of which acconmmodated the electric motor the, other compartment accommodating one of the bearings. The blower element advances the air through both of such compartmentsto cool the electromotor, on the one hand, and the bearing on the other, hand, independantly of one another. The partitioning …