C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 5/04 (2006.01) C10M 127/02 (2006.01)
Patent
CA 2359090
Refrigerant compositions containing hydrocarbon oil-return agents which solubilize mineral and synthetic oil lubricants with hydrofluorocarbon and hydrofluorocarbon/hydrochlorofluorocarbon-based refrigerants are disclosed. These hydrocarbon oil-return agents, having seven through sixteen carbon atoms, as a small proportion of an overall refrigerant composition, permit efficient return of mineral and synthetic oil lubricants from non-compressor zones back to a compressor zone in a refrigeration system operating with hydrofluorocarbon and hydrofluorocarbon/hydrochlorofluorocarbon-based refrigerants.
L'invention concerne des compositions de fluides frigorigènes contenant des agents hydrocarbonés de retour d'huile qui solubilisent les huiles lubrifiantes minérales ou synthétiques avec des fluides frigorigènes hydrofluorocarbonés et hydrofluorocarbonés/hydrochlorofluorocarbonés. Ces agents hydrocarbonés de retour d'huile, présentant 7 à 16 atomes de carbone, petite partie de la totalité d'une composition de fluide frigorigène, permettent le retour efficace des huiles lubrifiantes minérales et synthétiques, depuis les zones autres que celles du compresseur vers la zone du compresseur, dans un système frigorigène fonctionnant avec des fluides frigorigènes hydrofluorocarbonés et hydrofluorocarbonés/hydrochlorofluorocarbonés.
Bivens Donald Bernard
Minor Barbara Haviland
Spauschus Hans O.
Yokozeki Akimichi
Bennett Jones Llp
E. I. Du Pont de Nemours And Company
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