Refrigerant recovery system with flush mode
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United States of America Patent
Stats
-
Jun 2, 1992
Grant Date -
N/A
app pub date -
Sep 26, 1990
filing date -
Sep 26, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A refrigerant recovery apparatus will connect to an air conditioning system for recovering refrigerant when the air conditioning system requires maintenance. The recovery apparatus has a filter dryer for removing moisture and impurities, a compressor for compressing refrigerant recovered, and a condenser for condensing the compressed refrigerant into a liquid. A storage container stores the liquid refrigerant. A liquid pump will connect to the storage container for pumping liquid refrigerant from the storage container. The liquid pump in a flush mode, will pump the liquid refrigerant back through the air conditioning system to flush the air conditioning system of impurities. A return line returns the refrigerant back to the storage container, and filters the refrigerant from impurities. In a cleaning mode, the liquid pump will recirculate the liquid refrigerant from the storage container through the filter dryer and back to the storage container.
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