F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
62/68
F25B 45/00 (2006.01)
Patent
CA 1311622
ABSTRACT OF THE DISCLOSURE A system for recovering, purifying and recharging refrigerant in a refrigeration system comprises a refrigerant compressor having an input connected through an evaporator and a recovery control valve to a refrigeration system from which refrigerant is to be recovered, purified and recharged. A condenser is connected to the output of the compressor in heat exchange relation with the evaporator for liquifying refrigerant from the compressor output. Refrigerant liquified in the condenser is fed to a first port of a refrigerant storage container. During a purification cycle, refrigerant is circulated from a second port of the refrigerant storage container in a closed path through a circulation valve and a filter for removing water and other contaminants, and then returned to the first container port. The refrigeration system from which refrigerant has been recovered is evacuated to atmosphere through a vacuum valve. Following such evacuation, the second port of the refrigerant storage container is connected through a recharging valve to the refrigeration system for feeding refrigerant from the storage container to the refrigeration system, and thereby recharging the refrigeration system for normal use.
589825
Hickman Dennis W.
Manz Kenneth W.
Parks Richard D.
Shirley Roger D.
Hickman Dennis W.
Manz Kenneth W.
Marks & Clerk
Parks Richard D.
Shirley Roger D.
LandOfFree
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