Fresh air ECS
AssigneeHamilton Sundstrand Corporation
InventorsAiden Coutin, Tony Ho
Life of this patent
Estimating the term…
Abstract
An environmental control system of a vehicle includes a ram air circuit including a ram air shell having a ram air heat exchanger positioned therein, a dehumidification system arranged in fluid communication with the ram air circuit, a first compression device arranged in fluid communication with the dehumidification system, the first compression device including a first compressor, and a second compression device arranged in fluid communication with the ram air circuit. The second compression device includes a second compressor. A first medium is provided to the first compressor and to the second compressor in series.
Claims19
An environmental control system of a vehicle comprising:
- a ram air circuit including a ram air shell having a ram air heat exchanger positioned therein;
- a dehumidification system arranged in fluid communication with the ram air circuit;
- a first compression device arranged in fluid communication with the
- dehumidification system, the first compression device including a first compressor;
- and
- a second compression device arranged in fluid communication with the ram air circuit, the second compression device including a second compressor and a turbine, wherein a first medium is provided to the first compressor and to the second compressor in series, and energy is extracted from a second medium within the turbine to drive the second compressor;
- and
- a heat exchanger configured to receive a flow of both the first medium and the second medium, wherein an outlet of the heat exchanger is fluidly connected to the turbine such that the flow of second medium is provided to the heat exchanger and the turbine in series, wherein the second medium is heated within the heat exchanger.
A method of operating an environmental control system of a vehicle comprising:
- supplying a first medium to a first inlet;
- adjusting a temperature and a pressure of the first medium within a first compressor of a first compression device;
- further adjusting the temperature and the pressure of the first medium within a second compressor of a second compression device, the second compression device including a turbine, wherein the second compressor being arranged downstream from and in series with the first compressor;
- extracting energy from a second medium within the turbine to drive the second compressor;
- heating a second medium within a heat exchanger, the heat exchanger being arranged upstream from the second compression device relative to a flow of both the first medium and the second medium, wherein the second medium is provided to the heat exchanger and the second compression device in series;
- and
- delivering a conditioned form of the first medium to one or more loads of the vehicle via an outlet.
Dependencies are inferred from the claim text.