Narrow gap spray cooling in a globally cooled enclosure

Details Narrow gap spray cooling in a globally cooled enclosure Narrow gap spray cooling in a globally cooled enclosure

2006-02-06

2009-02-24

Gandhi, Jayprakash N (Department: 2835)

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

C361S689000, C165S104210, C062S259200, C062S310000, C062S121000

Reexamination Certificate

active

07495914

ABSTRACT:
Electronic circuit boards are arranged as respective parallel pairs defining a narrow gap there between. One or more such pairs of boards are supported within a hermitically sealable housing and cooled by way of spraying an atomized liquid coolant from a plurality of nozzles into each narrow gap. Transfer of heat from the circuit boards results in vaporization of at least some of the atomized liquid within the narrow gap. The housing further serves to guide a circulation of vapors out of each narrow gap, back toward the nozzles, and back into each narrow gap. A heat exchanger exhausts heat from the housing and overall system, wherein vapor is condensed back to liquid phase during contact and heat transfer therewith. Condensed liquid is collected and re-pressurized for delivery back to the nozzles such that a sustained cooling operation is performed.

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