US 12,078,399 B2
Regeneration using liquid loop of environmental control system
Jeffrey Ernst, Wethersfield, CT (US); and Louis J. Bruno, Ellington, CT (US)
Assigned to HAMILTON SUNDSTRAND CORPORATION, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Sep. 6, 2022, as Appl. No. 17/903,559.
Prior Publication US 2024/0077234 A1, Mar. 7, 2024
Int. Cl. F25B 9/00 (2006.01); B64D 13/06 (2006.01); B64D 13/08 (2006.01); F25B 9/06 (2006.01)
CPC F25B 9/004 (2013.01) [B64D 13/08 (2013.01); F25B 9/06 (2013.01); B64D 2013/0648 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An environmental control system comprising:
an inlet configured to receive a medium;
a compressing device fluidly connected to the inlet, the compressing device including a compressor operably coupled to a turbine, wherein an outlet of the compressor is fluidly connected to an inlet of the turbine such that the medium is provided to the compressor and the turbine in series;
at least one air-liquid heat exchanger arranged in fluid communication with the outlet of the compressor and the inlet of the turbine of the compressing device, the at least one air-liquid heat exchanger also being connected to a liquid loop containing a liquid; and
at least one air-liquid regeneration heat exchanger fluidly connected to the liquid loop at a location directly upstream from the at least one air-liquid heat exchanger, wherein a temperature of a liquid at an outlet of the air-liquid regeneration heat exchanger is less than the temperature of the liquid at an inlet of the air-liquid regeneration heat exchanger.