Patent ID: 7705496

Claim:
An electrical machine, comprising: a housing defined by an axis and designed as an extruded aluminum profile, said housing including an outer wall, at least one cooling duct, which extends radially within the outer wall and is closed off toward the outside by the outer wall, for allowing a transport of a coolant entering the housing in a direction of the axis, and a plurality of webs, which form walls of the at least one cooling duct, said webs projecting radially inward and defining a cylindrical free space inside the housing; a stator core having an axial length which is shorter than an axial length of the housing, said webs of the housing being constructed to hold the stator core, said stator having a stator core and an end winding extending out from an end face of the stator core; at least one pipe disposed axially upstream or downstream of the stator core and closing off the at least one cooling duct at least partially toward the cylindrical free space; and a bearing plate constructed to support a bearing at a location radially directly underneath the end winding and connected to the pipe such as to deflect an axial flow of coolant through the coolant duct to exit through a coolant outlet disposed in the housing at a location radially above the pipe.