Patent ID: 6414407
Filing Date: 2002-07-02
Classification: H02K

Abstract:
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; a housing enclosing said stator and said rotor; said housing having a first axial end, said first axial end having a wall with an inner surface and a outer surface, said housing having a second axial end having a 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 first inner surface and said first outer surface; said housing having a port integrally formed therein, said port directly fluidically coupling said first end of said first cooling tube to said second end of said second cooling tube; and 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 wall of said second axial end; whereby said first end of said first cooling tube and said first end of said second cooling tube are fluidically coupled together to permit fluid flow in parallel between said first cooling tube and said second cooling tube.