Method and apparatus for controlling temperature gradients...

Details Method and apparatus for controlling temperature gradients... Method and apparatus for controlling temperature gradients...

2006-06-12

2010-11-30

Chen, Shih-Chao (Department: 2821)

Heat exchange

Internally branched flow, externally ported

C343S893000

Reexamination Certificate

active

07841392

ABSTRACT:
A phased array antenna apparatus has a plurality of circuit portions which are each coupled to a respective antenna element. Capillary pressure of a cooling fluid within a wick in a loop is utilized to urge the fluid to travel around the loop, the wick being disposed in the region of the circuitry. In a variation, there are plural wicks in respective evaporators, and cooling fluid is distributed among the evaporators through a series of T-junctions. In another variation, cooling fluid is distributed to a plurality of evaporators in a sequence corresponding to a progressive increase in the respective amounts of heat accepted by the evaporators from structure being cooled.

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U.S. Appl. No. 10/693,562, filed Jun. 12, 2006, entitled “Method and Apparatus for Controlling Temperature Gradients within a Structure Being Cooled”, by Bryon Elliott Short, Jr. and Jay M. Ochterbeck, 72 pgs.

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