Liquid-cooled electrical machine with parallel flow

An electrical machine comprising:

• a rotor mounted on a shaft for rotation therewith and defining an axis of rotation;
• a stator disposed coaxially with and in opposition to said rotor, said stator having stator windings, said stator windings having an axially-extending portion;
• a first housing portion and a second housing portion enclosing said stator and said rotor therebetween;
• said first housing portion having a first axial end, said first axial end having a wall with an inner surface and an outer surface;
• said second housing having a second axial end, said second axial end having a second wall with an inner surface and an outer surface;
• a first cooling tube having a first end and a second end and an embedded portion thereof embedded between said inner surface and said outer surface of said first wall;
• a second cooling tube having a first end and a second end and an embedded portion thereof embedded between said inner surface and said outer surface of said second wall;
• an inlet fluidically coupled to said first end of said first tube and said first end of said second tube;
• an outlet fluidically coupled to said second end of said first tube and said second end of said second tube;
• so that said first cooling tube and said second cooling tube are fluidically coupled together to permit fluid flow in parallel between said first cooling tube in said first housing portion and said second cooling tube in said second housing portion.

An electrical machine comprising:

• an electrical machine;
• a first housing portion and a second housing portion substantially enclosing the electrical machine, said first housing portion having a first axial end;
• said second housing having a second axial end;
• a first cooling tube having a first end and a second end and an embedded portion thereof embedded within said first axial end;
• a second cooling tube having a first end and a second end and an embedded portion thereof embedded between within said second axial end;
• a fluid interface couple to said first housing, said fluid interface comprising,
• an inlet fluidically coupled to said first end of said first tube and said first end of said second tube;
• an outlet fluidically coupled to said second end of said first tube and said second end of said second tube;
• so that said first cooling tube and said second cooling tube are fluidically coupled together to permit fluid flow in parallel between said first cooling tube and said second cooling tube.