Control system for a cryogenic refrigeration system

Details Control system for a cryogenic refrigeration system Control system for a cryogenic refrigeration system

1996-11-07

1997-12-23

Kilner, Christopher

Refrigeration

Storage of solidified or liquified gas

Liquified gas transferred as liquid

62186, F17C 904

Patent

active

056996705

ABSTRACT:
A control system is provided for a cryogenic refrigeration system having an evaporator-heater coil, an electronically controlled valve for regulating the amount of cryogenic gas to the coil, and a vapor motor powered by the cryogenic gas that drives both an alternator for recharging the system battery, and a fan for generating an air flow through the coil and into a conditioned space. The control system includes a temperature sensor for generating an electrical signal indicative of the temperature of the conditioned space, and a microprocessor that is electrically connected to the temperature sensor, the alternator, and the electronically controlled valve for modulating the flow of cryogenic gas through the evaporator-heater coil in said vapor motor to achieve a selected set point temperature in the conditioned space, and to maintain a sufficient alternator current to effectively recharge the system battery.

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