Vapor-compression refrigeration apparatus with backup air-cooled heat sink and auxiliary refrigerant heater

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United States of America Patent

PATENT NO 9301433
APP PUB NO 20140102668A1
SERIAL NO

14134017

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Abstract

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Apparatus and method are provided for cooling an electronic component. The apparatus includes a refrigerant evaporator in thermal communication with a component(s) to be cooled, and a refrigerant loop coupled in fluid communication with the evaporator for facilitating flow of refrigerant through the evaporator. The apparatus further includes a compressor in fluid communication with a refrigerant loop, an air-cooled heat sink coupled to the refrigerant evaporator, for providing backup cooling to the electronic component in a backup, air cooling mode, and a controllable refrigerant heater coupled to the heat sink. The refrigerant heater is in thermal communication across the heat sink with refrigerant passing through the refrigerant evaporator, and is controlled in a primary, refrigeration cooling mode to apply an auxiliary heat load to refrigerant passing through the refrigerant evaporator to ensure that refrigerant in the refrigerant loop entering the compressor is in a superheated thermodynamic state.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Campbell, Levi A Poughkeepsie, US 279 10473
Chu, Richard C Hopewell Junction, US 302 15404
Ellsworth,, Jr Michael J Poughkeepsie, US 251 7902
Iyengar, Madhusudan K Foster City, US 329 12617
Simons, Robert E Poughkeepsie, US 312 15006

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