Patent ID: 6439298
Filing Date: 2002-08-27
Classification: F28D,F28F

Abstract:
A cylindrical heat radiator comprising:a cylindrical main body having a tightly sealed cavity defined therein, said cylindrical body being formed by an outer tube having an axially directed first through bore and an inner tube asymmetrically disposed in said first through bore to define said cavity therebetween, said cavity having an eccentric annular cross-sectional contour and being filled with a predetermined quantity of a working fluid, said inner tube having an axially directed second through bore extending therein; and a heat dissipating body disposed in said second through bore and being in thermal contact with said inner tube for forming a larger heat dissipating surface; wherein heat coupled to said outer tube is transferred to said heat dissipating body by heating said working fluid in said cavity to boil and vaporize so that said vapor and a condensate flow circularly in a single predetermined direction.