Liquid cooled electric machine and process for cooling an electric machine

摘要

The electrical machine (20) has a machine housing (21), in which a rotor (2) and a stator winding (7) are included. The stator winding has a cooler (24) and winding ends (8) arranged at opposite sides in an end winding space (26). Cooling pipe lines (10) are guided outside the end windings through the end winding spaces. Air cooler (25) has two impellers (11) for generating an air stream circulating in the end winding space. The air stream is guided in circulating manner over the cooling pipelines by air duct units (27) and air conducting units in the respective winding space. An independent claim is included for a method for cooling and electrical machine.