Patent ID: 7240507
Filing Date: 2007-07-10
Classification: F25B,F25D

Abstract:
1. A liquid cooling device comprising: a heat exchanger comprising a cavity containing a cooling liquid capable of evaporating under the effect of a reduced pressure and the vapors of said cooling liquid at a pressure below atmospheric pressure, pumping means adapted to pump the vapors of said cooling liquid so as to maintain a sub-atmospheric pressure in said cavity, said cavity of the heat exchanger having at least a first wall substantially conical in shape, such that its surface area in section diminishes from the base to the top, and at least a second wall forming the base of said conical shape, said first conical wall being designed to be in contact with the liquid to be cooled and said second wall incorporating means of connecting the cavity of the exchanger to the pumping means, the cavity of the heat exchanger being at a pressure below atmospheric pressure before connection to the pumping means.