Patent ID: 6789611
Filing Date: 2004-09-14
Classification: F28D,F28F,G06F,H01L

Abstract:
A bubble cycling heat exchanger in a computer, comprising a closed fluid loop having a first portion thereof in contact with a central processing unit of the computer through a heat conducting block connected to the central processing unit, the central processing unit forming a heat source, the closed fluid loop having a bubble generator confined to the first portion of the closed fluid loop for generating bubbles, the closed fluid loop having a second portion displaced from the first portion and contacting a radiator, the closed fluid loop having an expanding area located external and adjacent to the fluid loop and in fluid communication with said fluid loop for adaptively receiving at least a portion of the generated bubbles, the closed fluid loop being formed with a guide region between said first and second portions in which bubbles are easily separable, wherein heat from the heat source causes bubbles to be generated in the closed fluid loop, whereby an unequilibrium formed in the guide region of the loop causes the bubbles and the liquid in the closed fluid loop to flow from the first portion toward the second portion for transferring heat to the radiator and thereby remove heat from the central processing unit of the computer, the closed fluid loop operating continuously to transfer heat from the central processing unit to the radiator until a thermal equilibrium therebetween is achieved.