Patent attributes
An environmental control system of an aircraft includes a plurality of inlets for receiving a plurality of mediums including a first medium, a second medium, and a third medium and an outlet for delivering a conditioned flow of the second medium to one or more loads of the aircraft. A ram air circuit includes a ram air shell having at least one heat exchanger positioned therein. At least one compressing device is arranged in fluid communication with the ram air circuit and the outlet. The at least one compressing device includes at least one compressor and at least one turbine operably coupled via a shaft. A heat exchanger is arranged in fluid communication with the at least one compressing device. The second medium output from the at least one compressing device is cooled by the third medium. The second medium is fresh air.
