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US 11,459,497 B2Granted
Low GWP refrigerant blends
AssigneeRPL Holdings Limited
InventorsJohn Edward Poole, Richard L. Powell
Life of this patent
Estimating the term…
Abstract
Non-ozone depleting and non-flammable refrigerant compositions with GWPs less than 1050 which may replace HFC404A, HFC507 and HFC410A in refrigeration and air-conditioning systems.
Claims2
A nonflammable, zeotropic refrigerant composition consisting essentially of one of the following compositions:
- (a)
- R125
- 9.5%
- carbon dioxide
- 9%
- R1234ze
- 58%
- R227ea
- 7%
- R32
- 9.5%
- R134a
- 7%
- wherein the percentages are by mass;
- (b)
- R125
- 11%
- carbon dioxide
- 11%
- R1234ze
- 57%
- R227ea
- 7%
- R32
- 11%
- R134a
- 3%
- wherein the percentages are by mass;
- (c)
- R125
- 18%
- carbon dioxide
- 11%
- R1234ze
- 44%
- R227ea
- 6%
- R32
- 17%
- R134a
- 4%
- wherein the percentages are by mass;
- (d)
- R125
- 11%
- carbon dioxide
- 11%
- R1234ze
- 55%
- R227ea
- 7%
- R32
- 11%
- R134a
- 5%
- wherein the percentages are by mass;
- (e)
- R125
- 13%
- carbon dioxide
- 11%
- R1234ze
- 53%
- R227ea
- 7%
- R32
- 13%
- R134a
- 3%
- wherein the percentages are by mass;
- (f)
- R125
- 13%
- carbon dioxide
- 11%
- R1234ze
- 55%
- R227ea
- 7%
- R32
- 13%
- R134a
- 1%
- wherein the percentages are by mass;
- (g)
- R125
- 14%
- carbon dioxide
- 11%
- R1234ze
- 51%
- R227ea
- 7%
- R32
- 14%
- R134a
- 3%
- wherein the percentages are by mass;
- (i)
- R125
- 10.5%
- carbon dioxide
- 11%
- R1234ze
- 57%
- R227ea
- 7%
- R32
- 10.5%
- R134a
- 4%
- wherein the percentages are by mass;
- (j)
- R125
- 10.5%
- carbon dioxide
- 11%
- R1234ze
- 58%
- R227ea
- 7%
- R32
- 10.5%
- R134a
- 3%
- wherein the percentages are by mass;
- (k)
- R125
- 11.5%
- carbon dioxide
- 10%
- R1234ze
- 57%
- R227ea
- 7%
- R32
- 11.5%
- R134a
- 3%
- wherein the percentages are by mass;
- (l)
- R125
- 11.5%
- carbon dioxide
- 10%
- R1234ze
- 56%
- R227ea
- 8%
- R32
- 11.5%
- R134a
- 3%
- wherein the percentages are by mass.
151 more elements
A nonflammable, zeotropic refrigerant corn position consisting essentially of one of the following compositions:
- (a)
- R125
- 19%
- carbon dioxide
- 10%
- R1234ze
- 44%
- R227ea
- 3%
- R32
- 17%
- R134a
- 7%
- wherein the percentages are by mass;
- (b)
- R125
- 18%
- carbon dioxide
- 11%
- R1234ze
- 44%
- R227ea
- 7%
- R32
- 17%
- R134a
- 3%
- wherein the percentages are by mass;
- and
- (c)
- R125
- 18%
- carbon dioxide
- 11%
- R1234ze
- 44%
- R227ea
- 6%
- R32
- 17%
- R134a
- 4%
- wherein the percentages are by mass.
40 more elements
Dependencies are inferred from the claim text.