Liquid cooled electric motor frame

An electric motor, comprising:

• a stator frame comprising a substantially cylindrical shaped body section having opposed first and second ends, and a cooling passageway extending through at least a portion of said body section, said frame further comprising an inlet port and an outlet port in flow communication with said cooling passageway, said cooling passageway comprises a cooling conduit;
• a first end shield secured to said first stator frame end;
• a second end shield secured to said second stator frame end;
• and
• at least one spacer bar engaged to said cooling conduit.

An electric motor, comprising:

• a stator frame comprising a substantially cylindrical shaped body section having opposed first and second ends, and a cooling passageway extending through at least a portion of said body section, said frame further comprising an inlet port and an outlet port in flow communication with said cooling passageway, said cooling passageway comprises a cooling conduit comprising first and second tube rings having a generally circular shape, and a plurality of straight tube segments coupled to and extending between said first and second rings;
• a first end shield secured to said first stator frame end;
• and
• a second end shield secured to said second stator frame end.

A method for fabricating a stator frame, said method comprising the steps of:

• arranging a cooling conduit into a selected configuration;
• engaging at least one spacer bar to the cooling conduit;
• and
• casting the stator frame so that the cooling conduit is at least partially embedded within the frame.