Patent ID: 7644753

Claim:
A heat exchanger assembly for cooling the electronic device comprising; a boiler plate for disposition over the electronic device, a semi-spherical dome having a center axis and disposed on said boiler plate and defining a semi-spherical boiling chamber curved axially along and laterally from said center axis, a refrigerant disposed in said semi-spherical boiling chamber for undergoing a liquid-to-vapor-to-condensate cycle in response to the heat generated by the electronic device, a plurality of spaced condensing tubes disposed in a plurality of fan rows and extending from said dome to distal ends, a shroud enclosing said distal ends of said condensing tubes in spaced relationship to said dome for moving air over said condensing tubes and over said dome, said shroud and said distal ends of said condensing tubes being disposed in a domed shape in spaced relationship to said semi-spherical dome.