Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Patent
1997-06-18
1999-05-04
Thompson, Gregory D.
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
165 804, 16510433, 257714, 174 151, 174252, H05K 720
Patent
active
059010371
ABSTRACT:
A closed loop liquid cooling system for an RF transistor module including a plurality of elongated microchannels connected between a pair of coolant manifolds for conducting liquid coolant beneath one or more transistor dies to dissipate the heat generated thereby, a heat exchanger, a miniature circulating pump located on the module, and passive check valves having tapered passages for controlling the flow of coolant in the loop. The valves are truncated tapered passage microchannel valves having no moving parts and are fabricated so as to be a part of either the circulating pump, the coolant manifolds, or the microchannels.
REFERENCES:
patent: 5218515 (1993-06-01), Bernhardt
"A New Micropump Principle of the Reciprocating Type Using Pyramidic Micro Flowchannels as Passive Valves" J. Micromach, Microang.5 (1995) 199-201. Torsten Gerlach, Matthias Schuenemann and Helmut Wurmus.
Fagan Thomas J.
Hamilton Robin E.
Kennedy Paul G.
Woodward William S.
Northrop Grumman Corporation
Sutcliff Walter G.
Thompson Gregory D.
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