US 12,146,688 B2
Refrigerant vapor compression system with multiple flash tanks
Douglas R. Auyer, Clay, NY (US); Jason D. Scarcella, Cicero, NY (US); and KeonWoo Lee, Manlius, NY (US)
Assigned to CARRIER CORPORATION, Palm Beach Gardens, FL (US)
Filed by Carrier Corporation, Palm Beach, FL (US)
Filed on Jan. 12, 2021, as Appl. No. 17/248,154.
Claims priority of provisional application 62/970,434, filed on Feb. 5, 2020.
Prior Publication US 2021/0239366 A1, Aug. 5, 2021
Int. Cl. F25B 1/10 (2006.01); F25B 41/39 (2021.01); F25B 49/02 (2006.01)
CPC F25B 1/10 (2013.01) [F25B 49/02 (2013.01); F25B 41/39 (2021.01); F25B 2400/0409 (2013.01); F25B 2600/2513 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A refrigerant vapor compression system comprising a plurality of components connected in a refrigerant flow circuit by a plurality of refrigerant lines, said components comprising:
a compression device;
a refrigerant heat rejection heat exchanger;
a first expansion device;
a refrigerant heat absorption heat exchanger;
a flash tank system having a first flash tank operably coupled to a second flash tank by a first connection, wherein the first flash tank and the second flash tank have disposed therein an upper separation device and a lower separation device and the first connection extends from the first flash tank between the upper separation device and the lower separation device to the second flash tank between the upper separation device and the lower separation device, the flash tank system being disposed in the refrigerant flow circuit between the refrigerant heat rejection heat exchanger and the refrigerant heat absorption heat exchanger, wherein the flash tank system is downstream of the refrigerant heat rejection heat exchanger and upstream of the refrigerant heat absorption heat exchanger with respect to liquid refrigerant flow.