The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 1996
Filed:
Jul. 12, 1994
Takuho Hirahara, Shizuoka, JP;
Susumu Kawaguchi, Shizuoka, JP;
Tatsuaki Shimizu, Shizuoka, JP;
Katsuyuki Kawasaki, Shizuoka, JP;
Noboru Masuda, Shizuoka, JP;
Shinobu Ogasawara, Shizuoka, JP;
Hiroshige Konishi, Shizuoka, JP;
Hitoshi Maruyama, Shizuoka, JP;
Yoshihiro Sumida, Hyogo, JP;
Akemi Ueyama, Hyogo, JP;
Satoru Toyama, Hyogo, JP;
Sou Suzuki, Shizuoka, JP;
Yasushi Akahori, Shizuoka, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
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.