Refrigeration system with integrated oil cooling heat exchanger

Details Refrigeration system with integrated oil cooling heat exchanger Refrigeration system with integrated oil cooling heat exchanger

1997-12-19

2000-05-09

Wayner, William

Refrigeration

Automatic control

Refrigeration producer

62473, 62513, F25B 3100, F25B 4302

Patent

active

06058727&

ABSTRACT:
A refrigeration system for cooling air is disclosed. The system includes a substantially liquid refrigerant and an evaporator for transferring heat from the air to the substantially liquid refrigerant. The substantially liquid refrigerant becomes a low temperature, low pressure first substantially gaseous refrigerant. A compressor compresses the first substantially gaseous refrigerant into a high pressure, high temperature superheated second gaseous refrigerant. A lubricant circuit supplies lubricant to the compressor. A condenser rejects heat from the second gaseous refrigerant and forms a high pressure, lower temperature sub-cooled liquid refrigerant. The condenser has an output stream. A metering device transforms the sub-cooled liquid refrigerant into the substantially liquid refrigerant for the evaporator. A heat exchanger receives the first substantially gaseous refrigerant as a coolant on route to the compressor. The first substantially gaseous refrigerant is relatively cooler than the lubricant and the sub-cooled liquid refrigerant. The lubricant via the lubricant circuit flows through the heat exchanger and cools prior to entering the compressor and the sub-cooled liquid refrigerant flowing through the heat exchanger means sub-cools prior to entering the metering device.

REFERENCES:
patent: 3621673 (1971-11-01), Foust
patent: 4208887 (1980-06-01), Morse et al.
patent: 4217765 (1980-08-01), Ecker
patent: 4316366 (1982-02-01), Manning
patent: 4488413 (1984-12-01), Bottum
patent: 4938036 (1990-07-01), Hougkins et al.
patent: 5245833 (1993-09-01), Mei et al.

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