Electric machine with enhanced liquid cooling

Abstract

The present invention is a liquid cooled electric machine (10) having enhanced cooling of the end turns (22) by providing intimate contact between the end turns and coolant fluid flowing through a first annular flow channel (34) and a second annular flow channel (50). Furthermore, a cylindrical liner (62) which is force fit within the annulus of the stator 12 forms part of the first and second annular flow channels and further provides support against radially inward deflection of the end turns (22). Furthermore, the invention is a cooling system (200) for an exciter generator in a self-excited electric power generator which has a liquid coolant circuit (216) which splits coolant flow between an inside surface (222) of a fullwave rectifier assembly (214) and an outside surface (226) of the fullwave rectifier assembly which absorbs heat from the rotor of the exciter generator.

Dependencies are inferred from the claim text.