US 12,078,379 B2
Split regeneration environmental control system
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. 21, 2022, as Appl. No. 17/949,724.
Claims priority of provisional application 63/357,936, filed on Jul. 1, 2022.
Prior Publication US 2024/0003583 A1, Jan. 4, 2024
Int. Cl. F24F 11/86 (2018.01)
CPC F24F 11/86 (2018.01) 15 Claims
OG exemplary drawing
 
1. An environmental control system comprising:
an inlet configured to receive a medium;
an outlet configured to receive a conditioned form of the medium;
a compressing device fluidly connected to the inlet, the compressing device including a compressor operably coupled to a turbine, the compressor having a compressor inlet and a compressor outlet and the turbine having a turbine inlet and a turbine outlet, wherein the compressor outlet is fluidly connected to the turbine inlet such that the medium is provided to the compressor and the turbine in series;
a first air-liquid heat exchanger arranged in fluid communication with the compressor outlet and the turbine inlet;
a first regeneration heat exchanger fluidly connected to the compressor outlet and to an inlet of the first air-liquid heat exchanger; and
a second regeneration heat exchanger fluidly connected to an outlet of the first air-liquid heat exchanger and to the turbine inlet;
wherein a portion of the conditioned form of the medium is used as a heat sink to cool the medium at both the first regeneration heat exchanger and the second regeneration heat exchanger.