Refrigerating cycle

Details Refrigerating cycle Refrigerating cycle

1996-01-04

1998-03-31

Wayner, William E.

Refrigeration

Refrigeration producer

With lubricant handling means

62503, F25B 4302, F25B 100

Patent

active

057325685

ABSTRACT:
In a refrigerating cycle using a refrigerant containing hydrofluorocarbon as a main component, of a refrigerant pipe arrangement constituting the refrigerating cycle, a refrigerant pipe extending upward from a lower side to an upper side is made to have an inner diameter not larger than a value which makes the flow rate of the refrigerant be not smaller than a zero penetration flow rate. It is possible to obtain a refrigerating cycle superior in oil returning to a compressor and hence high in reliability, even in the case of using refrigerator oil having no compatibility with a refrigerant containing hydrofluorocarbon as a main component.

REFERENCES:
patent: 3636723 (1972-01-01), Kramer
patent: 4429544 (1984-02-01), McCarty
patent: 5355695 (1994-10-01), Kawaguchi et al.
patent: 5517824 (1996-05-01), Konishi et al.
U.S. application No. 08/273,848, Konishi et al., filed Jul. 12, 1994.
U.S. application No. 08/582,932, Konishi et al., filed Jan. 4, 1996.

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