A high efficiency heat sink comprising a U-shaped copper tube and a
press-formed sealed vacuum vessel formed of pure copper sheet. The sealed
vacuum vessel contains fibers that are strongly absorbent and are
impregnated with a refrigerant. The thermal energy effect of the surface
with which the inhibited glycol refrigerant employed by the present
invention is in contact causes the glycol to vaporize and ascend into the
orifice of the U-shaped copper tube. A fan causes the orifice of the
U-shaped copper tube of the evaporator to cool and condenses the vapor to
liquid, and the liquid flows back again into the sealed vacuum vessel,
thus forming a cyclic type heat exchanger and achieving the optimum heat
dispersal effect.