초록 ▼

A method comprises complete liquefaction of the cooling agent, before its cooling is carried out, by dissolving in the components of the mixture liquefied at the working pressure, those of which are in the vapor phase at the working pressure. The cooling agent includes difluorodichloromethane in the

A method comprises complete liquefaction of the cooling agent, before its cooling is carried out, by dissolving in the components of the mixture liquefied at the working pressure, those of which are in the vapor phase at the working pressure. The cooling agent includes difluorodichloromethane in the amount of 10-50 vol. %, component a having a normal boiling point within the range from -55°C. to 85°C. in the amount 10-50 vol. %, a component having a normal boiling point within the range from -30°C. to 55°C. in the amount of 10-50 vol. %, and a component having a normal boiling point within the range from 16°C. to 35°C. in the amount of 10-75 vol. %. The use in home refrigerators of the cooling agent of the present invention considerably increases maximum specific cold capacity of the refrigeration unit.

대표청구항 ▼

A method of refrigeration, comprising the steps of compressing a multi-component cooling agent to a working pressure, said multi-component cooling agent comprising 10-50 volume percent of difluorodichloromethane as a first component 10-50 volume percent of a compound selected from the group consisti

A method of refrigeration, comprising the steps of compressing a multi-component cooling agent to a working pressure, said multi-component cooling agent comprising 10-50 volume percent of difluorodichloromethane as a first component 10-50 volume percent of a compound selected from the group consisting of carbon dioxide, trifluoromonochloromethane and trifluoromonobromomethane as a second component, 10-50 volume percent of a compound selected from the group consisting of difluoromonochloromethane and propane as a third component, and 10-75 volume percent of a compound selected from the group consisting of difluoromonochloroethane, difluoromonochlorobromomethane and octafluorocyclobutane as a fourth component, condensing the compressed cooling agent at said working pressure to liquify the cooling component of higher boiling point, said cooling component of lower boiling point dissolving in the liquified component of higher boiling point, thus forming a liquified cooling agent of said cooling components at said working pressure, throttling said cooling agent to a lower pressure, thereby cooling the same, at least partially evaporating the thus-cooled cooling agent which is at said lower pressure, thereby effecting cooling, and recycling the at least partially evaporated cooling agent to the compressing step.