US 12,140,359 B2
Climate control systems for use with high glide working fluids and methods for operation thereof
Andrew M. Welch, Sidney, OH (US); William Bradford Boggess, Lebanon, OH (US); and Rajan Rajendran, Sidney, OH (US)
Assigned to Copeland LP, Sidney, OH (US)
Filed by Copeland LP, Sidney, OH (US)
Filed on Oct. 21, 2021, as Appl. No. 17/507,403.
Prior Publication US 2023/0130167 A1, Apr. 27, 2023
Int. Cl. F25B 49/02 (2006.01); F25B 9/00 (2006.01); F25B 13/00 (2006.01); F25B 41/40 (2021.01)
CPC F25B 9/006 (2013.01) [F25B 49/02 (2013.01); F25B 13/00 (2013.01); F25B 41/40 (2021.01)] 21 Claims
OG exemplary drawing
 
1. A climate control system that circulates a working fluid comprising a refrigerant blend having high glide, the climate control system comprising:
the working fluid comprising a first refrigerant and a second refrigerant, wherein a difference in boiling points between the first refrigerant and the second refrigerant is greater than or equal to about 25° F. at atmospheric pressure;
a gas-liquid separation vessel that receives the working fluid and generates a vapor stream and a liquid stream;
a compressor that receives the vapor stream from the gas-liquid separation vessel and generates a pressurized vapor stream;
a liquid pump that receives the liquid stream from the gas-liquid separation vessel and generates a pressurized liquid stream;
a first heat exchanger disposed downstream of the compressor that receives and cools the pressurized vapor stream directly from the compressor and the pressurized liquid stream directly from the liquid pump to generate a multiphase or liquid working fluid stream by heat exchange with air;
a second heat exchanger that receives the multiphase or liquid working fluid stream and at least partially vaporizes the multiphase or liquid working fluid that is directed to the gas-liquid separation vessel by heat exchange with air;
an expansion device disposed between the first heat exchanger and the second heat exchanger that expands the multiphase or liquid working fluid stream; and
a fluid conduit for circulating the working fluid and establishing fluid communication between the second heat exchanger, the gas-liquid separation vessel, the compressor, the first heat exchanger, and the expansion device through which the working fluid circulates.