Nonflammable, nonozone depleting, refrigerant mixtures suitable for use in mineral oil

   
   

The present invention relates to refrigerants generally, and more specifically to nonflammable, nonozone depleting, mixtures of refrigerants that may be substituted for HCFC-22, R-407C, R-417A, R-502, R-500, CFC-12, R-404A, HFC-134a, and others, and is usable in mineral oil systems. Among the most preferred embodiments of the present invention are mixtures that are substitutes for these refrigerants, comprising about 1 to 85 weight percent R-125, and about 1 to 80 weight percent R-134a, and about 0 to 12 weight percent of R-1270, R-290 or a mixture thereof, and about 1 to 15 weight percent R-E170 and about 0 to 20 weight percent R-227ea, with the weight percentages of the components being weight percentages of the overall mixture.

A invenção atual relaciona-se aos refrigerants geralmente, e mais especificamente a nonflammable, ao nonozone que esgotam, às misturas dos refrigerants que podem ser substituídos para HCFC-22, R-407C, R-417A, R-502, R-500, CFC-12, R-404A, HFC-134a, e outro, e é-se usable em sistemas de óleo mineral. Entre as incorporações as mais preferidas da invenção atual são as misturas que são substitutos para estes refrigerants, compreendendo os por cento R-125 de aproximadamente 1 a 85 pesos, e os por cento R-134a de aproximadamente 1 a 80 pesos, e os por cento de aproximadamente 0 a 12 pesos de R-1270, R-290 ou uma mistura disso, e os por cento R-E170 de aproximadamente 1 a 15 pesos e os por cento R-227ea de aproximadamente 0 a 20 pesos, com as porcentagens do peso dos componentes que são porcentagens do peso da mistura total.

 
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