Surface-cooled rotating electrical machine, has different coolant flow direction in input parts from that in output parts in intermediate rotor volume, and transport devices on rotor packet ends

摘要

The machine has part of an intermediate volume in the rotor (2) that can be used as cooling channels in the form of a coolant feed and another part has a coolant outlet, so that the direction of flow of the coolant in the input parts is different from that in the output parts. Transport devices mounted on one or more rotor packet ends are connected to the input or output parts of the intermediate rotor volume and to a winding head volume (6,7).