Systems for the active cooling of a bolted stator

Abstract

Bolted stator of an electric machine, comprising: a nose through which a bolt extends; and coolant channels, comprising: a supply channel arranged at the base of the nose; transverse channels extending circumferentially, the transverse channels being arranged in one or more rings distributed axially symmetrically with respect to an axial center of the bolted stator and in fluid communication with the supply channel; and axial channels extending from the transverse channels to a first end of the bolted stator and to a second end of the bolted stator axially opposite the first end.