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Method of removing an immiscible lubricant from a refrigeration system and apparatus for same

United States Patent

March 30, 1999
View the Complete Patent at the US Patent & Trademark Office
A method of separating an immiscible lubricant from a liquid refrigerant in a refrigerating system including a compressor, a condenser, an expansion device and an evaporator, wherein the expansion device is connected to the condenser by a liquid refrigerant flow line for liquid refrigerant and immiscible lubricant. The method comprising slowing the rate of flow of the liquid refrigerant and immiscible lubricant between the condenser and the expansion device such that the liquid refrigerant and the immiscible lubricant separate based upon differences in density. The method also comprises collecting the separated immiscible lubricant in a collection chamber in fluid communication with the separated immiscible lubricant. Apparatus for performing the method is also disclosed.
Spauschus; Hans O. (Stockbridge, GA), Starr; Thomas L. (Roswell, GA)
Spauschus Associates, Inc. (Stockbridge, GA)
08/ 845,955
April 30, 1997
This invention was made with Government support under Contract No. DE-FG02-91CE23810 awarded by The Department of Energy. The Government has certain rights in this invention.