Closed loop oil service system for AC or refrigerant compressor

Details Closed loop oil service system for AC or refrigerant compressor Closed loop oil service system for AC or refrigerant compressor

1994-09-19

1995-10-24

Sollecito, John M.

Refrigeration

With indicator or tester

62468, 62292, F25B 4900

Patent

active

054600057

ABSTRACT:
The closed loop oil service system operates in conjunction with an air conditioner or refrigerant compressor lubricated by lubricating oil contained within the compressor casing. The compressor includes a submerged oil drain port, submerged oil view port, a refrigerant inlet port and refrigerant outlet port. The closed loop oil service system utilizes a canister containing compressor lubricating oil and having a long stem first valve and a short stem second valve. The system also includes a pair of coupler hoses which fluidly and gaseously connect the canister valves and compressor ports. The first coupler hose is connected between compressor oil drain port and canister first valve. The second coupler hose is connected between compressor refrigerant outlet port and canister second valve. A closed fluid and gaseous loop is established between the compressor and the canister during oil augmentation operations. A refrigerant drum is coupled to canister second valve to provide motive force for oil augmentation operations to a non-operating compressor.

REFERENCES:
patent: 3777509 (1973-12-01), Muench
patent: 4586351 (1986-05-01), Igarashi et al.
patent: 4856289 (1989-08-01), Lofland
patent: 5016447 (1991-05-01), Lane et al.
patent: 5214931 (1993-06-01), Paige
patent: 5265432 (1993-11-01), Luepke et al.
Thermal Engineering Catalog, p. 252, Thermal Charg-Oil Pumps and Chang-Oil Pump Publicly available 1993.
ACR Catalog, Publicly available 1993, p. 99, Thermal Charg-Oil Pump Chang-Oil Pump.
PMI Catalog, p. 178, available 1993, compressor oil pump.

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