KR910009903A - Working fluid - Google Patents

Abstract

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Description

Working fluid

As this is a public information case, the full text was not included.

1 to 2 are three elementary compositions of the working fluid of Examples 1 to 6.

Claims (17)

Difluoroethane; A working fluid comprising at least two fluorinated hydrocarbons selected from the group consisting of methane derivatives and ethane derivatives comprising one or more carbon atoms, hydrogen atoms and fluorine atoms, and having a boiling point of -40 ° C. or less at atmospheric pressure. The working fluid according to claim 1, wherein the working fluid is made of 15 to 90% by weight of difluoroethane. The working fluid of claim 1, wherein the at least two fluorinated hydrocarbons are selected from the group consisting of trifluoromethane, difluoromethane, pentafluoroethane and trifluoroethane. 15 to 90% by weight of difluoroethane; At least two fluorinated hydrocarbons selected from the group consisting of up to 50% by weight of trifluoromethane, up to 60% by weight of difluoromethane, up to 85% by weight of pentafluoroethane and up to 80% by weight of trifluoroethane. Working fluid. 20 to 85% by weight of difluoroethane; At least two fluorinated hydrocarbons selected from the group consisting of up to 40% by weight of trifluoromethane, up to 50% by weight of difluoromethane, up to 80% by weight of pentafluoroethane and up to 80% by weight of trifluoroethane. Working fluid. The method of claim 1, wherein 40 to 90% by weight of difluoroethane; A working fluid comprising less than 50% by weight of trifluoromethane and less than 60% by weight of difluoromethane. 7. Working fluid according to claim 6, characterized in that it consists of 50 to 85% by weight of difluoroethane, up to 40% by weight of trifluoromethane and up to 60% by weight of difluoromethane. 2. The working fluid of claim 1, comprising from 15 to 90% by weight of difluoroethane, up to 50% by weight of trifluoromethane and up to 85% by weight of pentafluoroethane. 10. The working fluid of claim 8 comprising 20 to 85% by weight of difluoroethane, up to 40% by weight of trifluoromethane and up to 80% by weight of pentafluoroethane. A working fluid according to claim 1, characterized in that it consists of 20 to 90% by weight of difluoroethane, up to 50% by weight of trifluoromethane and up to 80% by weight of trifluoroethane. A working fluid according to claim 10, characterized in that it consists of 20 to 85% by weight of difluoroethane, up to 40% by weight of trifluoromethane and up to 80% by weight of trifluoroethane. A working fluid according to claim 1, comprising from 15 to 65% by weight of difluoroethane, up to 60% by weight of difluoromethane and up to 85% by weight of pentafluoroethane. 13. Working fluid according to claim 12, characterized in that it consists of 20 to 65% by weight of difluoroethane, up to 50% by weight of difluoromethane and up to 80% by weight of pentafluoroethane. A working fluid according to claim 1, comprising 20 to 65% by weight of difluoroethane, up to 60% by weight of difluoromethane and up to 80% by weight of trifluoroethane. 15. The working fluid of claim 14, wherein the working fluid comprises 20 to 65 weight percent difluoroethane, up to 50 weight percent difluoromethane, and up to 80 weight percent trifluoroethane. The working fluid of claim 1 wherein the working fluid comprises 15 to 35 weight percent difluoroethane, up to 85 weight percent pentafluoromethane, and up to 80 weight percent trifluoroethane. 17. The working fluid of claim 16 comprising 20-30% by weight of difluoroethane, up to 80% by weight of pentafluoromethane and up to 80% by weight of trifluoroethane. ※ Note: The disclosure is based on the initial application.