Denso Corporation

Kabushiki Kaisha Toyota Jidoshokki

Jx Nippon Oil Energy Corporation

Pacific Industrial Company, Ltd.

Hajime Mukawa

Hitoshi Takahashi

Ken Sawada

Masahiko Yamamoto

Yoshitaka Tomatsu

Souichirou Konno

Takahiro Hoshida

Akira Tada

Masataka Muto

Takekazu Kano

Genki Hayashi

Kazuki Yamamoto

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). 

Working fluid composition for refrigerator, and refrigerator oil

A nozzle cap is disclosed which is threadedly engaged with a distal end of a nozzle through which a compressed fluid is passed. The nozzle cap includes a terminal wall opposed to a distal end face of the nozzle axially with respect to the nozzle, a sealing member placed on the terminal wall so as to adhere closely to the distal end of the nozzle thereby to seal an opening of the nozzle, and a holding wall pressing and holding an edge of the sealing member in co-operation with the terminal wall between the walls.

Nozzle cap for sealing nozzle particularly used to charge with high pressurized fluid

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Nagoya, Japan

Hajime Mukawa