Controlling superheat in a refrigeration system
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United States of America Patent
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-
Jun 6, 1989
Grant Date -
N/A
app pub date -
Mar 14, 1988
filing date -
Mar 14, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vapor compression refrigeration system is which a self heated thermistor is located in the suction line downstream of the evaporator to directly sense the quality of the refrigerant flowing thereover. Appropriate circuitry measures the voltage drop across the thermistor and this drop is used to vary the duty cycle of the system's expansion valve thereby controlling the superheat of the evaporator.
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