Abstract: A pressurization system for a vehicle includes a plurality of medium sources including a first medium source, a second medium source, and a third medium source. A cabin air compressing device is arranged in fluid communication with the plurality of medium sources. The cabin air compressing device includes a shaft, a compressor connected to the shaft and at least one turbine connected to the shaft. The compressor has a compressor inlet fluidly coupled to the first medium source and a compressor outlet fluidly connected to an inlet of a downstream environmental control system pack. Energy extracted within the at least one turbine is configured to drive the compressor.

Abstract: An environmental control system of a vehicle includes a first inlet configured to receive a flow of a first medium, a second inlet configured to receive a flow of a second medium, and a thermodynamic device including a compressor and at least one turbine operably coupled by a shaft. The compressor and the at least one turbine are fluidly coupled to the first inlet. The compressor and the at least one turbine are arranged in parallel relative to the flow of the first medium such that a first portion of the first medium is receivable at the compressor and a second portion of the first medium is receivable at the at least one turbine.

Abstract: An aircraft air supply system for generating pressurized air includes a compressor configured to receive and pressurize a flow of outside air, a turbine operatively coupled to the compressor by a shaft and configured to drive the compressor, a fluid pathway fluidly connecting the compressor to an environmental control system pack, an outflow pathway fluidly connecting a cabin of the aircraft to the turbine, a surge relief pathway fluidly connecting the compressor to the outflow pathway and the turbine, and a surge relief valve disposed within the surge relief pathway. In a first operational state, the surge relief valve is open to allow a flow of surge relief air to flow from the compressor to the outflow pathway via the surge relief pathway, the surge relief air further flowing through the turbine.

Abstract: A system for a vehicle includes at least one inlet for receiving at least one medium and a device arranged in fluid communication with the at least one inlet. The device includes a shaft rotatable about a shaft axis, a compressor connected to the shaft, and a turbine connected to the shaft and also configured to drive the compressor upon receipt of the at least one medium. The turbine is a mixed-flow turbine.

Abstract: A cooling system of a vehicle including an inlet for receiving a medium and a turbo-generator fluidly connected to the inlet. The turbo-generator includes a turbine operably coupled to a generator by a shaft. The turbine has a turbine inlet and a turbine outlet, the turbine inlet being fluidly coupled to the inlet. The medium is ram air.

Abstract: An environmental control system of an aircraft has a plurality of inlets including a first inlet for receiving a first medium and a second inlet for receiving a second medium. A thermodynamic device includes a compressor and at least one turbine and is fluidly coupled to the second inlet. A ram air circuit has a plurality of heat exchangers including a first heat exchanger and a second heat exchanger and is fluidly coupled to both the first inlet and the thermodynamic device. In a first mode, an outlet of the thermodynamic device is fluidly connected to the ram air circuit downstream from both the first heat exchanger and the second heat exchanger. In a second mode, the outlet of the thermodynamic device is fluidly connected to an inlet of one of the plurality of heat exchangers.

Abstract: A method of operating an environmental control system pack of a vehicle includes providing a thermodynamic device including a compressor and a plurality of turbines including a first turbine and a second turbine mounted to a shaft and a plurality of valves fluidly coupled to the thermodynamic device, operating at least one of the plurality of valves to supply a medium to the first turbine and the second turbine in series during a mode of operation, and operating at least one of the plurality of valves to supply a first portion of the medium to the first turbine and to supply a second portion of the medium to the second turbine independently from the first portion of the medium in location another mode of operation.

Abstract: An environmental control system for a vehicle includes a source of a first medium, a cabin air compressing device including a compressor having a compressor inlet and a compressor outlet, and a conduit fluidly coupling the source of the first medium to the compressor inlet. The first medium provided to the compressor inlet is output at the compressor outlet as a compressed first medium. An environmental control system pack is located downstream from and is fluidly coupled to the compressor outlet. The environmental control system pack includes a ram air circuit having at least one ram air heat exchanger. Another conduit for providing a second medium to the compressor fluidly couples an outlet of the at least one ram air heat exchanger and the compressor inlet.

Abstract: An environmental control system for a vehicle includes an environmental control system pack including a ram air circuit and a thermodynamic device. The ram air circuit includes a ram air shell having a ram inlet and a ram outlet and at least one ram air heat exchanger arranged within the ram air shell. A ram air fan is fluidly coupled to the ram air shell. A bypass conduit is fluidly connected to a source of compressed medium. The bypass conduit has an outlet end positioned adjacent to a surface of the ram air fan for delivering a compressed medium to the surface.

Abstract: An environmental control system for a vehicle includes at least one cabin air compressing device including a compressor having a compressor inlet and a compressor outlet. The environmental control system additionally includes an environmental control system pack located downstream from and fluidly coupled to the compressor outlet via at least one conduit. The environmental control system pack includes a ram air circuit. A bypass conduit fluidly couples the compressor outlet to the ram air circuit.

Abstract: An environmental control system of an aircraft includes a ram air input configured to receive ram air from a ram air duct of the aircraft and an electric motor driven compressor system. The system also includes a RAM heat exchanger and an ejector connected to the output of the RAM heat exchanger that is fluidly connected to the output of a compressor in the compressor system and that causes ram air received at the cooling flow input to be drawn through the RAM heat exchanger.

Abstract: A conditioning system for recirculation air of an aircraft cabin includes an air cycle system in fluid communication with the aircraft cabin and configured to receive a recirculation airflow from the aircraft cabin and a mixing chamber disposed in fluid communication between the air cycle system and the aircraft cabin. The mixing chamber is configured to mix the recirculation airflow received from the air cycle system with a conditioned airflow received from an environmental control system pack of the aircraft.

Abstract: A system for a vehicle includes at least one inlet for receiving at least one medium and a device arranged in fluid communication with the at least one inlet. The device includes a shaft rotatable about a shaft axis, a compressor connected to the shaft, and a turbine connected to the shaft and also configured to drive the compressor upon receipt of the at least one medium. The turbine is a mixed-flow turbine.

Abstract: A thermal management system for a directed energy weapon includes a first heat exchanger thermally coupled to the directed energy weapon and a second heat exchanger arranged in fluid communication with the first heat exchanger to form a closed loop. The second heat exchanger is thermally coupled to a secondary system and a thermal management fluid circulates within the closed loop. A thermal storage device is arranged in fluid communication with the first heat exchanger and the second heat exchanger. The thermal storage device contains a material and a mode of operation of the directed energy weapon is dependent on a condition of the material in the thermal storage device.

Abstract: An environmental control system of a vehicle includes a first inlet configured to receive a flow of a first medium, a second inlet configured to receive a flow of a second medium, and a thermodynamic device including a compressor and at least one turbine operably coupled by a shaft. The compressor and the at least one turbine are fluidly coupled to the first inlet. The compressor and the at least one turbine are arranged in parallel relative to the flow of the first medium such that a first portion of the first medium is receivable at the compressor and a second portion of the first medium is receivable at the at least one turbine.

Abstract: An environmental control system of a vehicle includes an inlet for receiving a medium, an outlet for delivering a conditioned form of the medium to a load, a primary heat exchanger fluidly coupled to the inlet and a secondary heat exchanger. A thermodynamic device is fluidly coupled to the primary heat exchanger and the secondary heat exchanger. A first bypass conduit has a first bypass inlet arranged upstream from the primary heat exchanger and a first bypass outlet arranged upstream from the secondary heat exchanger. A first bypass valve is operable to control a flow of medium through the first bypass conduit. During operation in a first mode, the medium is configured to flow through the primary heat exchanger and the secondary heat exchanger in series. During operation in a second mode, the medium is configured to flow through the primary heat exchanger and the secondary heat exchanger in parallel.

Abstract: A cooling system of a vehicle includes an inlet for receiving a medium. A turbine is fluidly connected to the inlet. A coupling mechanism is operably coupled to the turbine by a shaft. The medium is ram air.

Abstract: A cooling system of a vehicle including an inlet for receiving a medium and a turbo-generator fluidly connected to the inlet. The turbo-generator includes a turbine operably coupled to a generator by a shaft. The turbine has a turbine inlet and a turbine outlet, the turbine inlet being fluidly coupled to the inlet. The medium is ram air.

Abstract: A pressurization system for a vehicle includes an inlet for receiving a medium and a cabin air compressing device arranged in fluid communication with the inlet. The cabin air compressing device includes a shaft, a compressor connected to the shaft, a motor operably connected to the shaft and configured to drive the compressor, and a turbine connected to the shaft and also configured to drive the compressor upon receipt of the medium. A heat exchanger has a first inlet fluidly connected to the compressor outlet and a second inlet fluidly connected to the turbine outlet. The compressor inlet and the turbine inlet are fluidly connected to and are arranged in parallel relative to the inlet.

Abstract: A thermal management system for a directed energy weapon includes a heat exchanger thermally coupled to the directed energy weapon. The heat exchanger has a heat exchanger inlet and a heat exchanger outlet. A storage reservoir contains a thermal material. An outlet of the storage reservoir is arranged in fluid communication with the heat exchanger to form a closed loop having a thermal management fluid circulating therethrough. The storage reservoir is thermally coupled to a secondary system. A control valve is positioned downstream from the outlet of the storage reservoir. The control valve is adjustable to control a temperature of the thermal management fluid provided to the heat exchanger.