METHOD OF REDUCING LIQUID FLOODING IN A TRANSPORT REFRIGERATION UNIT
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United States of America Patent
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Issued Date -
Dec 10, 2015
app pub date -
Dec 27, 2013
filing date -
Dec 27, 2012
priority date (Note) -
Abandoned
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Abstract
A method to reduce/prevent liquid refrigerant flooding in the compressor is disclosed herein. The method may include closing down the ETV when there is a risk of compressor flooding. The method may include closing down the ETV to a desired value when there is a risk of the compressor flooding. A failure to provide the superheated refrigerant vapor in a desired superheat temperature by the compressor may indicate a risk of the compressor being flooded by liquid refrigerant. The method may include measuring a refrigerant discharge temperature of the compressor, and closing down the ETV when a difference between the refrigerant discharge temperature of the compressor and a refrigerant saturate temperature is below a desired temperature threshold.
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