The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 03, 2021
Filed:
Dec. 29, 2017
Trane International Inc., Davidson, NC (US);
Kenneth J. Schultz, Onalaska, WI (US);
Stephen A. Kujak, Brownsville, MN (US);
TRANE INTERNATIONAL INC., Davidson, NC (US);
Abstract
A non-flammable refrigerant composition for a HVACR system that includes R134a refrigerant, a hydrofluorocarbon refrigerant that has a global warming potential (GWP) of less than 150 or a hydrofluoroolefin refrigerant, and CFI. A method of making a refrigerant composition for a HVACR system that includes selecting an amount of a first refrigerant that is a hydrofluorocarbon refrigerant or a hydrofluoroolefin refrigerant, selecting an amount of CFI, and selecting an amount of R134a refrigerant. A method of retrofitting a refrigerant composition in an HVACR system that includes adding one or more compounds to the refrigerant composition. The retrofitted composition including R134a refrigerant, a hydrofluorocarbon refrigerant having a GWP of less than 150, and CFI, or R134a refrigerant, a hydrofluoroolefin refrigerant, and CFI.