US Patent 11629278 Heat transfer compositions as replacement for R-134A
Patent 11629278 was granted and assigned to Arkema on April, 2023 by the United States Patent and Trademark Office.
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Wissam Rached0
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US Patent 11629278 Heat transfer compositions as replacement for R-134A
Article
A method for transferring heat using a heat transfer facility containing a heat transfer composition, said heat transfer composition including a refrigerant, which includes 2,3,3,3-tetrafluoropropene, and a lubricant. The lubricant includes a polyol ester, and the solubility of the 2,3,3,3-tetrafluoropropene in the lubricant at 0° C. and at an absolute pressure of 2.2 bar is less than the solubility of 1,1,1,2-tetrafluoroethane in the lubricant at 0° C. and at an absolute pressure of 2.0 bar. A method including the successive steps of: evaporating a refrigerant; superheating the refrigerant; and compressing the refrigerant.
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Patent Jurisdiction
Patent Number
116292780
Date of Patent
April 18, 2023
0Patent Application Number
169621430
Date Filed
February 13, 2019
0Patent Citations
Patent Primary Examiner
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