摘要 |
A refrigerant circulating system that uses a highly polar refrigerant, as typified by a hydrofluorocarbon-based one, and a refrigerating oil that has slight solubility with a liquid refrigerant on the condensation side. Also, a refrigerant circulating cycle that uses a highly polar refrigerant, as typified by a hydrofluorocarbon-based one, and a refrigerating oil that has a slight solubility with a liquid refrigerant and which has a greater specific gravity than the liquid refrigerant. Thereby, it provides a high electrical insulation and moisture resistance, good oil return to the compressor, and high reliability.
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申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
HIRAHARA, TAKUHO;KAWAGUCHI, SUSUMU;SHIMIZU, TATSUAKI;KAWASAKI, KATSUYUKI;MASUDA, NOBORU;OGASAWARA, SHINOBU;KONISHI, HIROSHIGE;MARUYAMA, HITOSHI;SUMIDA, YOSHIHIRO;UEYAMA, AKEMI;TOYAMA, SATORU;SUZUKI, SOU;AKAHORI, YASUSHI |