Refrigeration – Refrigeration producer – With lubricant handling means
Patent
1994-04-06
1995-03-14
Sollecito, John M.
Refrigeration
Refrigeration producer
With lubricant handling means
62 84, F25B 4302
Patent
active
053967844
ABSTRACT:
An oil management system for a refrigeration system having a screw compressor for pressurizing and circulating refrigerant through the system and an evaporator having a shell enclosing a chamber for allowing phase change of the refrigerant. A suction line is provided to fluidly connect the evaporator chamber to the inlet side of the compressor. The suction line is sealed about an opening in the shell and has a distal end projecting into the chamber below the seal. A reservoir is positioned within the chamber, below the suction line. The reservoir is employed for collecting lubrication oil migrating down the suction line during low load operation of the compressor so that when the level of oil in the reservoir reaches a predetermined level, the opening in the distal end of the line will be restricted thereby increasing the flow velocity proximate thereto causing reintroduction of the oil into the compressor.
REFERENCES:
patent: 1965544 (1934-07-01), Fedders
patent: 1987591 (1935-01-01), Askin
patent: 5086621 (1992-02-01), Starner et al.
Carrier Corporation
Sollecito John M.
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