Supplemental cooling system for avionic equipment
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United States of America Patent
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Nov 16, 1993
Grant Date -
N/A
app pub date -
Sep 28, 1992
filing date -
Sep 28, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A supplemental cooling system is provided for selectively boosting the cooling capacity of a primary cooling system having a cooling duct for feeding cooling air to an electrical device to be cooled. The supplemental cooling system includes a source of cryogenic coolant and a control valve for controlling the amount of cryogenic coolant fed to the cooling duct of the primary cooling system. Also provided is an injection nozzle for injecting the cryogenic coolant into the cooling air duct and a mixer for mixing the cryogenic coolant with the cooling air of the cooling duct so that, as the cryogenic coolant evaporates, the cooling capacity of the primary cooling system is boosted. A controller controls the operation the control valve to regulate the amount of cryogenic coolant released into the cooling duct and thereby set the amount of increased cooling provided.
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