Patent ID: 9525324
Filing Date: 2016-12-20
CPC Classification: H02K

Claim Text:
1. An axial flux electrical machine comprising: a substantially sealed housing; a stator mounted on, and located within, the housing; a rotatable shaft located at least partially within the housing and extending through the stator; and a rotor located on the shaft within the housing adjacent the stator, the rotor being rotatable with respect to the stator, wherein a fluid flow path is defined within the housing, the fluid flow path having a first portion which extends between the stator and the rotor, a second portion that extends between the stator and the housing and a third portion which links the first and second portions, such that the first, second and third portions form a contiguous cooling path within the housing, wherein the stator defines fluid flow channels therethrough, the fluid flow channels extending radially from an outer edge region of the stator to an inner edge region thereof, the outer edge region being adjacent, and spaced from, the shaft, the fluid flow channels providing at least part of the third portion of the associated fluid flow path.