Encapsulated refrigerator

Details Encapsulated refrigerator Encapsulated refrigerator

1977-11-07

1979-03-06

Novosad, Stephen J.

Refrigeration

Refrigeration producer

With lubricant handling means

62503, F25B 102, F25B 3100, F25B 4302

Patent

active

041423801

ABSTRACT:
The invention relates to an encapsulated refrigerator assembly of the type in which an integrated motor and compressor unit is resiliently mounted in a hermetically sealed casing or capsule. An oil sump at the bottom of the capsule is provided for lubricating oil. An externally disposed centrifugal separator with an oil collecting tank at the bottom thereof provides refrigerant in vapor form for the compressor and oil for the oil sump. The compressor has a main inlet for receiving refrigerant vapor from the separator and a throttled inlet for receiving a refrigerant vapor which is present in the capsule and which entered entrained in the oil received from the separator. The capsule has a single port and two tubes extend from this single port to the separator. An outer tube provides fluid communication between the separator oil collecting tank and the interior of the capsule which houses the motor and compressor unit. A second or inner tube inside the outer tube is spaced therefrom and provides fluid communication between separator vapor outlet and the inlet of the compressor.

REFERENCES:
patent: 2813404 (1957-11-01), Hirsch
patent: 3154245 (1964-10-01), Roelsgaard
patent: 3177680 (1965-04-01), Rasovich et al.
patent: 3304697 (1967-02-01), Ramsey
patent: 3304741 (1967-02-01), Weller
patent: 3483714 (1969-12-01), Krause et al.

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