Electric machine

An electric machine comprising:

• a machine housing defining a machine housing interior;
• a stator disposed in said machine housing interior and extending along a stator axis, wherein said stator comprises a stator core defining a stator core interior and a plurality of windings disposed in said stator core interior, and wherein said plurality of windings has first end windings extending outside of said stator core interior in a first direction along said stator axis and second end windings extending outside of said stator core interior in a second direction along said stator axis opposite said first direction;
• an internal core surrounding said plurality of windings within said stator core interior, wherein said internal core and said machine housing at least partially define a first cooling channel encapsulating said first end windings and a second cooling channel encapsulating said second end windings;
• a first supply path configured to direct fluid to said first cooling channel through a first supply inlet, wherein said first supply inlet is fluidly coupled to said first supply path and said first cooling channel;
• a second supply path configured to direct fluid to said second cooling channel through a second supply inlet, wherein said second supply inlet is fluidly coupled to said second supply path and said second cooling channel;
• a first outlet path configured to receive fluid from said first cooling channel from a first outlet, wherein said first outlet is fluidly coupled to said first cooling channel and said first outlet path;
• and
• a second outlet path configured to receive fluid from said second cooling channel from a second outlet, wherein said second outlet is fluidly coupled to said second cooling channel and said second outlet path;
• wherein said first supply path is fluidly separate from said second supply path such that said first supply path independently supplies fluid to said first cooling channel and said second supply path independently supplies fluid to said second cooling channel;
• and
• wherein said first cooling channel comprises a first lower cooling portion adjacent said first supply inlet and a first upper cooling portion adjacent said first outlet, wherein said first cooling channel is configured such that, when the fluid is pressurized, the fluid flows from said first lower cooling portion to said first upper cooling portion and such that, when the fluid is not pressurized, the fluid does not flow from said first lower cooling portion to said first upper cooling portion.