Evaporator liquid preheater for reducing refrigerant charge
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United States of America Patent
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Dec 5, 2023
Grant Date -
May 23, 2019
app pub date -
Nov 6, 2018
filing date -
Jul 1, 2014
priority date (Note) -
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Abstract
A system and method for reducing the refrigerant charge in a refrigeration system by preheating the liquid refrigerant before it is introduced to the evaporator inlet. When refrigerant liquid is introduced to the evaporator inlet, a portion of the refrigerant liquid vaporizes. This refrigerant vapor displaces refrigerant liquid at the inlet of the evaporator. As more refrigerant vapor is introduced, the amount of liquid inside the evaporator is reduced. A heat exchanger is placed before the liquid refrigerant inlet of the evaporator to generate more vapor when the refrigerant enters the evaporator.
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