Refrigerating/air-conditioning apparatus

Details Refrigerating/air-conditioning apparatus Refrigerating/air-conditioning apparatus

1998-06-01

1999-11-23

Bennett, Henry

Refrigeration

Refrigeration producer

With lubricant handling means

F25B 4302

Patent

active

059879149

ABSTRACT:
In a refrigeration cycle using a cooling medium circuit in which a compressor, a heat-source-side heat exchanger, a decompressor, and a user-side heat exchanger are connected successively for circulating a cooling medium, and refrigerating machine oil having no or extremely low mutual solubility to the cooling medium; an internal diameter of a down comer in which a liquid phase cooling medium flows from the upstream side to the down stream side in the refrigeration cycle is adjusted so that the flow velocity of cooling medium in the down comer is made to be higher than that at which refrigerating machine oil floating in a cooling medium goes down.

REFERENCES:
patent: 5419144 (1995-05-01), Kawaguchi et al.
patent: 5517824 (1996-05-01), Konishi et al.
patent: 5531080 (1996-07-01), Hirahara et al.

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