Refrigerating cycle
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United States of America Patent
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May 21, 1996
Grant Date -
N/A
app pub date -
Jul 6, 1994
filing date -
Sep 30, 1993
priority date (Note) -
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status (Latency Note)
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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.
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