Patent ID: 11878800
Assignee: HAMILTON SUNDSTRAND CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  F  Y | IPC B  F

Claim 0:
1. An environmental control system of an aircraft comprising:
a plurality of inlets for receiving a plurality of mediums including a first medium, a second medium, and a third medium;
an outlet for delivering a conditioned flow of the second medium to one or more loads of the aircraft;
a ram air circuit including a ram air shell having at least one heat exchanger positioned therein;
at least one compressing device arranged in fluid communication with the ram air circuit and the outlet, the at least one compressing device including at least one compressor and at least one turbine operably coupled via a shaft; and
a heat exchanger arranged in fluid communication with the at least one compressing device, the heat exchanger being arranged downstream from the at least one compressing device relative to a flow of the second medium and being arranged upstream from the at least one compressing device relative to a flow of the third medium, wherein within the heat exchanger, the second medium output from the at least one compressing device is cooled by the third medium, wherein the second medium is fresh air,
the at least one compressing device includes a first compressing device and a second compressing device, an outlet of the first compressing device being arranged in fluid communication with an inlet of the second compressing device.