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:
Aug. 21, 2018
Filed:
Dec. 22, 2014
Denso Corporation, Kariya-shi, Aichi, JP;
Kabushiki Kaisha Toyota Jidoshokki, Kariya-shi, Aichi, JP;
Jx Nippon Oil & Energy Corporation, Chiyoda-ku, Tokyo, JP;
Masataka Muto, Obu, JP;
Hajime Mukawa, Nagoya, JP;
Takekazu Kano, Obu, JP;
Genki Hayashi, Kariya, JP;
Kazuki Yamamoto, Kariya, JP;
Takahiro Hoshida, Kariya, JP;
Hitoshi Takahashi, Tokyo, JP;
Ken Sawada, Tokyo, JP;
Akira Tada, Tokyo, JP;
Souichirou Konno, Tokyo, JP;
Denso Corporation, Kariya-shi, JP;
Kabushki Kaisha Toyota Jidoshokki, Kariya-shi, JP;
JX Nippon Oil & Energy Corporation, Tokyo, JP;
Abstract
The present invention provides a working fluid composition for a refrigerating machine, comprising a refrigerating machine oil that comprises an ester of a polyhydric alcohol and a fatty acid, an epoxy compound, and a phosphorus compound, and a fluoropropene refrigerant, wherein the polyhydric alcohol constituting the ester comprises pentaerythritol and dipentaerythritol, the fatty acid constituting the ester comprises at least one selected from fatty acids having 4 to 9 carbon atoms, and the epoxy compound and the phosphorus compound satisfy a condition represented by the following formula (1).