Refrigeration – Refrigeration producer – Compressor-condenser-evaporator circuit
Patent
1984-03-02
1985-08-27
Tapolcai, William E.
Refrigeration
Refrigeration producer
Compressor-condenser-evaporator circuit
417 8, F25B 110
Patent
active
045370478
ABSTRACT:
A transport refrigeration unit of the type which has a single or common refrigerant circuit, and a truck engine driven compressor 22 and a mutually, exclusively operable standby compressor 34 is provided with an arrangement of suction line fitting 46 with a pair of check valves 64 and 66 located physically above the fitting which receives the suction side refrigerant through line 48 from below the fitting and is provided with an inversely related pressure side fitting 54 with associated check valves 68 and 70 and the compressors are of substantially identical pumping capacity and oil capacity, all to the end of preventing an interchange of oil between the compressors during operation, and to migration of refrigerant and oil during periods of inoperation.
REFERENCES:
patent: 2221688 (1940-11-01), Gibson
patent: 2294552 (1942-09-01), Gycax
patent: 2319502 (1943-05-01), Gould
patent: 3122003 (1964-02-01), Sullivan
patent: 3386262 (1968-06-01), Hackbart et al.
patent: 3785169 (1974-01-01), Gylland, Jr.
patent: 3970413 (1976-07-01), Duveau
patent: 3984224 (1976-10-01), Dawkins
patent: 4418548 (1983-12-01), Sawyer
Neimy Daniel T.
Seshadri Jayaram
Arenz E. C.
Tapolcai William E.
Thermo King Corporation
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