Refrigeration system and method for very large scale integrated

Details Refrigeration system and method for very large scale integrated Refrigeration system and method for very large scale integrated

1994-07-01

1995-12-05

Wayner, William E.

Refrigeration

Automatic control

Refrigeration producer

622592, 165 804, 361700, F25B 4104

Patent

active

054718503

ABSTRACT:
To dissipate heat generated internally in integrated circuit units, both an active refrigeration system and a passive refrigeration system are coupled to a heat sink that engages the integrated circuit unit. A cold probe insertable into the heat sink has an interior heat exchanger and receives high pressure but ambient temperature refrigerant which is subcooled and expanded to provide cold liquid refrigerant about the interior heat exchanger. As thermal energy from the circuit unit evaporates refrigerant, the refrigerant passes back to a power refrigeration unit for recirculation. A passive backup unit functions if the cold probe operation fails for some reason by boiling off a second refrigerant in a chamber at the heat sink and condensing the gases within a spaced apart air heat exchanger. Refrigerant that recondenses within the air heat exchanger flows by gravity back into the boil off chamber.

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