Refrigeration – Processes – Condensing and evaporating
Reexamination Certificate
2011-03-22
2011-03-22
Ali, Mohammad M (Department: 3784)
Refrigeration
Processes
Condensing and evaporating
C062S259200
Reexamination Certificate
active
07908874
ABSTRACT:
According to one embodiment of the invention, a method is provided for cooling heat-generating structure disposed in an environment having an ambient pressure. The heat-generating structure includes electronics. The method includes providing a coolant, reducing a pressure of the coolant to a subambient pressure at which the coolant has a boiling temperature less than a temperature of the heat-generating structure, and bringing the heat-generating structure and the coolant at the subambient pressure into contact with one another, so that the coolant boils and vaporizes to thereby absorb heat from the heat-generating structure. In a more particular embodiment the coolant is either pure water or pure methanol with an electrical resistivity level of greater than one million Ohms-cm. Further, in another particular embodiment the method includes filtering the coolant to maintain its purity above a particular level.
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Rummel Kerrin A.
Weber Richard M.
Wyatt William G.
Ali Mohammad M
Baker & Botts L.L.P.
Raytheon Company
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