초록 ▼

A working fluid which demonstrates a preferable performance even with a small filling amount of the refrigerant of hydrocarbons containing no halogen atom such as ethane, propane, butane, iso-butane and the like into the refrigerating cycle equipment is disclosed. There is also disclosed a refrigera

A working fluid which demonstrates a preferable performance even with a small filling amount of the refrigerant of hydrocarbons containing no halogen atom such as ethane, propane, butane, iso-butane and the like into the refrigerating cycle equipment is disclosed. There is also disclosed a refrigerating cycle equipment excellent in the safety against the worst case of the refrigerant leakage, brought by the use of the above-mentioned working fluid. The working fluid comprises the refrigerant of hydrocarbons containing 2 to 4 carbon atoms and no halogen atom, and a lubricating oil for a refrigerator containing, as its main component, an ester compound which is incompatible with the above-mentioned refrigerant.

대표청구항 ▼

[ What is claimed is:] [1.]1. A working fluid for a refrigerating cycle equipment comprising a refrigerant and a refrigeration lubricant, wherein;said refrigerant consists of halogen-free hydrocarbons having two to four carbon atoms, andsaid refrigeration lubricant comprises, as a main component, a

[ What is claimed is:] [1.]1. A working fluid for a refrigerating cycle equipment comprising a refrigerant and a refrigeration lubricant, wherein;said refrigerant consists of halogen-free hydrocarbons having two to four carbon atoms, andsaid refrigeration lubricant comprises, as a main component, a compound selected from the group consisting of linear carbonate compounds, cyclic carbonate compounds, and cyclic ester compounds, wherein said compound is incompatible with said refrigerant.