Rotor cooling arrangement

A method of cooling a rotor for electrical equipment, said rotor having at least one pair of poles and each pole having a length and a width and a winding encircling said length and said width, said method comprising the steps of

• providing at least one element fabricated of heat conductive material;
• and
• disposing said element between each rotor pole and its encircling winding, said element extending along said length between a first and a second location and then turning at said second location to form an extension that extends a predetermined distance along said width.

A rotor for electrical equipment, said rotor having at least one pair of poles, each pole having at least two intersecting pole surfaces and a winding encircling these surfaces, and said rotor comprising

• at least one element fabricated of heat conductive material, said element being disposed between at least one of said poles and its encircling winding, said element having a bend so that said element wraps around and extends along said two intersecting pole surfaces.

A rotor for electrical equipment, said rotor having at least one pair of poles, each pole having at least two intersecting pole surfaces and a winding encircling these surfaces, and said rotor comprising

• at least one element fabricated of heat conductive material, said element being disposed between at least one of said poles and its encircling winding, each element having a first nonplanar surface that is adjacent to said two intersecting pole surfaces.

Electrical equipment comprising

• a housing;
• a stationary winding disposed in said housing and forming an aperture;
• a rotor disposed in said aperture, said rotor including at least one pair of poles, each pole having at least two intersecting pole surfaces and a winding encircling these surfaces, and at least one element fabricated of heat conductive material, said element being disposed between at least one of said poles and its encircling winding, each element having a first nonplanar surface that is adjacent to said two intersecting pole surfaces.

A method of cooling a rotor for electrical equipment, said rotor having at least one pair of poles, each pole having at least two intersecting pole surfaces and a winding encircling these surfaces, said method comprising the steps of

• providing at least one element fabricated of heat conductive material, each element having a nonplanar surface;
• and
• disposing said element between each rotor pole and its encircling winding, said nonplanar surface of said element being adjacent to said two intersecting pole surfaces.