Kabushiki Kaisha Toyota Jidoshokki

Denso Corporation

Jx Nippon Oil Energy Corporation

Genki Hayashi

Hitoshi Takahashi

Ken Sawada

Souichirou Konno

Takahiro Hoshida

Akira Tada

Hitoshi Inukai

Masataka Muto

Takekazu Kano

Kazuki Yamamoto

Naoki Goto

Hajime Mukawa

Nobutoshi Bannno

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 swash plate type compressor includes a cylinder block having a crank chamber, a rotary shaft, a swash plate, pistons and fasteners extending through the crank chamber between any two adjacent pistons. The cylinder block further includes ribs projecting inward from inner surface of the crank chamber, extending in axial direction of the rotary shaft and being arranged so that the pistons and the fasteners are positioned alternately between any two adjacent ribs, a piston-side wall surface forming the inner surface and being positioned between any two adjacent ribs located on opposite side of the piston and a fastener-side wall surface forming the inner surface and being positioned between any two adjacent ribs located on opposite side of the fastener The piston-side wall surface is spaced farther away from the rotary shaft than the fastener-side wall surface in radial direction of the rotary shaft.

Swash plate type compressor

Growing community of inventors

Kariya, Japan

Genki Hayashi