Refrigeration – Processes – Assembling – charging – or repairing of refrigeration producer
Patent
1990-09-07
1992-03-24
Bennett, Henry A.
Refrigeration
Processes
Assembling, charging, or repairing of refrigeration producer
62149, 62292, F25B 4500
Patent
active
050976672
ABSTRACT:
An apparatus for emptying and recharging a refrigeration system (42) by on-site servicing comprising a discharge container (1) and a charging container (2). Each of said containers (1,2) comprises two chambers (20,21);(30,31) for mutual heat exchange. Said discharge container (1) comprises a storage chamber (20) for liquid refrigerant and a suction chamber (21) positioned inside or outside the storage chamber. Said charging container (2) comprises a storage chamber (30) for clean liquid refrigerant and a metering chamber (31) for gaseous refrigerant to be charged to the refrigeration system (42). Said refrigeration system (42) is emptied by means of a compressor (3). Said recharging is effected by heating element (32) which evaporates the refrigerant introduced into the metering chamber (31) as a gaseous refrigerant until a predetermined pressure is established. The metering chamber (31) is recharged a predetermined number of times depending on the capacity of the refrigeration system (42) to be serviced.
REFERENCES:
patent: 4363222 (1982-12-01), Cain
patent: 4441330 (1984-04-01), Lower et al.
patent: 4903499 (1990-02-01), Merritt
Bennett Henry A.
Sollecito John
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