Electrical machine cooled by liquid circulation has cylindrical stator with cavities to house windings and co-axial inserts which channel cooling liquid axially through the winding housings

摘要

The electrical machine has a cylindrical stator (1) with an external wall (2) which includes open cavities (6) for stator windings (11). Two abutting (17e) cylindrical inserts (13,32) seal off the winding cavities from the internal rotor area (5) and have spaces (21,33) at the stator ends for connection to cooling liquid input and output pipes.