Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Zhikal Guo0
Guangming Chen0
Xinzheng Guo0
Yongmei Xuan0
Date of Patent
December 2, 2008
0Patent Application Number
112217770
Date Filed
September 9, 2005
0Patent Primary Examiner
Patent abstract
The present invention discloses ternary mixtures of fluoroethane (HFC-161), pentafluoroethane (HFC-125) and difluoromethane (HFC-32) used as environmentally friendly alternative refrigerants to HCFC-22. The mass ratios of the mixture of each component are 5-60%, 25-50% and 5-50%, respectively. Its ODP is zero, with no depletion potential to the ozone layer. Its GWP is smaller than those of HCFC-22, R407C and R410A. Its working pressure and pressure ratio are close to those of HCFC-22. With few changes to system components, it can be used as a potential substitute refrigerant for HCFC-22.
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