US 11,885,533 B2
Refrigerant vapor compression system
Jianhua Zhou, Manlius, NY (US); Tobias H. Sienel, Baldwinsville, NY (US); KeonWoo Lee, Manlius, NY (US); Jason D. Scarcella, Cicero, NY (US); Douglas Auyer, Palm Beach Gardens, FL (US); Ping Sue Vang, Liverpool, NY (US); and Bruce J. Poplawski, Mattydale, NY (US)
Assigned to Carrier Corporation, Palm Beach Gardens, FL (US)
Appl. No. 17/253,452
Filed by Carrier Corporation, Palm Beach Gardens, FL (US)
PCT Filed May 12, 2020, PCT No. PCT/US2020/032439
§ 371(c)(1), (2) Date Dec. 17, 2020,
PCT Pub. No. WO2020/247153, PCT Pub. Date Dec. 10, 2020.
Claims priority of provisional application 62/857,928, filed on Jun. 6, 2019.
Prior Publication US 2021/0247109 A1, Aug. 12, 2021
Int. Cl. F25B 1/10 (2006.01); F25B 6/04 (2006.01); F25B 41/39 (2021.01); F25B 9/00 (2006.01)
CPC F25B 1/10 (2013.01) [F25B 6/04 (2013.01); F25B 9/008 (2013.01); F25B 41/39 (2021.01); F25B 2339/047 (2013.01); F25B 2400/072 (2013.01); F25B 2400/13 (2013.01); F25B 2400/23 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A refrigerant vapor compression system comprising:
a compression device having at least a first compression stage and a second compression stage arranged in series refrigerant flow relationship;
a first refrigerant heat rejection heat exchanger disposed downstream with respect to refrigerant flow of the second compression stage for passing refrigerant in heat exchange relationship with a flow of a first secondary fluid;
a first refrigerant intercooler disposed intermediate the first compression stage and the second compression stage for passing the refrigerant passing from the first compression stage to the second compression stage in heat exchange relationship with the flow of the first secondary fluid, the first refrigerant intercooler disposed downstream of the first refrigerant heat rejection heat exchanger with respect to the flow of the first secondary fluid, and wherein the first refrigerant intercooler is directly upstream of the second compression stage;
an economizer circuit including a vapor line in fluid communication with a suction inlet to the second compression stage, wherein an outlet from the economizer circuit feeds directly into an inlet to the first refrigerant intercooler;
a second refrigerant heat rejection heat exchanger disposed intermediate with respect to refrigerant flow of the second compression stage and the first refrigerant heat rejection heat exchanger, wherein the second refrigerant heat rejection heat exchanger is directly downstream of the second compression stage and directly upstream of the first refrigerant heat rejection heat exchanger; and
a second refrigerant intercooler disposed intermediate the first compression stage and the second compression stage and downstream with respect to refrigerant flow of the vapor line for passing the refrigerant from the first compression stage to the second compression stage in heat exchange relationship with a second secondary fluid, and wherein the second refrigerant intercooler is directly downstream of the first compression stage and directly upstream of the first refrigerant intercooler.