Refrigeration system with superheating, sub-cooling and refrigerant charge level control
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United States of America Patent
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Jan 23, 2018
Issued Date -
N/A
app pub date -
Jan 13, 2016
filing date -
Jan 13, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The refrigeration system includes a compressor, a condenser, an evaporator, one or both of a receiver drier unit and an accumulator unit fluidly connected by refrigerant lines to form a refrigerant circuit. The receiver drier unit includes a receiver drier and a first sensor, and the accumulator unit includes an accumulator and a second sensor. A controller is electrically connected to the first and second sensors and in some cases electrically connected to an electrical valve. The electrical valve is fluidly connected to a refrigerant reservoir. The controller determines the refrigerant charge level, and selectively controls the electrical valve to allow the refrigerant to flow from the refrigerant reservoir to the refrigerant circuit when the refrigerant charge level is below the predetermined refrigerant charge level.
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