Thermosiphonic oil cooler for refrigeration chiller

Details Thermosiphonic oil cooler for refrigeration chiller Thermosiphonic oil cooler for refrigeration chiller

1999-08-06

2000-05-30

Jiang, Chen-Wen

Refrigeration

Processes

Lubricant handling

62468, 62469, F25B 4302

Patent

active

060678046

ABSTRACT:
Oil cooling is accomplished in a refrigeration chiller by flowing hot oil into heat exchange contact with liquid refrigerant which is sourced from the chiller's condenser and returned thereto. The rejection of heat from the oil to the refrigerant in an oil-cooling heat exchanger causes vaporization of the refrigerant and, in turn, creates a density difference in the refrigerant flowing from the condenser and refrigerant in and downstream of the oil-cooling heat exchanger. This density difference is responsible for inducing and maintaining refrigerant flow through the heat exchanger for oil cooling purposes.

REFERENCES:
patent: 320308 (1885-06-01), Suckert
patent: 2322874 (1943-06-01), Neeson et al.
patent: 3548612 (1970-12-01), Mitsubayashi et al.
patent: 3820350 (1974-06-01), Brandin et al.
patent: 5419155 (1995-05-01), Boehde et al.
patent: 5433590 (1995-07-01), Klaus et al.
patent: 5603222 (1997-02-01), Dube

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