Abstract: An inline valve includes a sliding piston having a radially outer stop portion with a forward end. A radially inner sliding portion is connected to the radially outer stop portion by an arm. A housing includes an outer housing body surrounding the piston. The housing has a stop surface selectively in contact with the forward end of the radially outer stop portion of the piston to block flow for a housing inlet to a housing outlet. The radially inner sliding portion slides on a support tube. At least a portion of the radially inner sliding portion is formed of a first material having better wear resistance than a second material forming the outer stop portion of the piston. The second material has a greater resistance to high temperature and pressure than the first material. A vent valve for a compressor is also disclosed.

Abstract: An integrated vapor cycle system includes a compressor including a compressor housing, a condenser in fluid communication with the compressor, a flash tank in fluid communication with the condenser, and an evaporator in fluid communication with the flash tank and the compressor. The compressor, the condenser, the flash tank, and the evaporator define a refrigerant circuit circulating a volume of refrigerant therethrough. The compressor housing, the condenser, the flash tank, and the evaporator are formed together as a single unitary component.

Abstract: A dual entry turbine of a compression device includes a housing having a first inlet and a second inlet, and a first outlet and a second outlet. A turbine impeller is arranged within the housing. The turbine impeller has a first gas path and a second gas path. A first flow path extends from the first inlet to the first outlet via the first gas path and a second flow path extends from the second inlet to the second outlet via the second gas path. The first flow path and the second flow path being fluidly separate from one another.

Abstract: A duct is provided and includes a tubular member having an inlet portion, an outlet portion and a central portion interposed between the inlet and outlet portions and a tributary tubular member fluidly coupled to the tubular member at the central portion. The tributary tubular member includes first and second torus sectors defining first and second apertures, respectively, through which an upstream end of the central portion extends. The second torus sector is disposed within the first torus sector to define a sectioned toroidal annulus about the first and second apertures and between an exterior surface of the second torus sector and an interior surface of the first torus sector.

Abstract: A water separator includes an outer annular passage extending along a central longitudinal axis of water separator to direct an airflow along a first direction, and an inner annular passage located radially inboard of the outer annular passage and coaxial with the outer annular passage to direct the airflow along a second direction. A coalescer is located along the outer annular passage to coalesce water in the airflow. A water collector is located along the inner annular passage to collect the water. An airflow outlet is located downstream of the water collector through which the airflow exits the water separator.

Abstract: A duct is provided and includes a tubular member having an inlet portion, an outlet portion and a central portion interposed between the inlet and outlet portions and a tributary tubular member fluidly coupled to the tubular member at the central portion. The tributary tubular member includes first and second torus sectors defining first and second apertures, respectively, through which an upstream end of the central portion extends. The second torus sector is disposed within the first torus sector to define a sectioned toroidal annulus about the first and second apertures and between an exterior surface of the second torus sector and an interior surface of the first torus sector.

Abstract: An air separation module includes a canister extending between a first end and an opposite second end, a separator fixed within the canister to separate a compressed air flow into an oxygen-enriched air flow fraction and an oxygen-depleted air flow fraction, and a one-piece cap. The one-piece cap is connected to the first end of the canister and has a filter module mount portion on a side of the one-piece cap opposite the separator to support a filter module with the air separation module. Nitrogen generation systems and methods of making air separation modules are also described.

Abstract: An aircraft pressure device includes a connection to ambient having a sensor body mounted to a fuselage of an aircraft. The sensor body includes a sense port. A sense line includes a first end connected to the sense port, a second end defining an opening in the fuselage, and an intermediate portion. A valve is arranged in the intermediate portion, the valve being operable to prevent fluid flow between the first end and the second end.

Abstract: A water extractor for an environmental control system of an aircraft includes a separation mechanism configured to divide an airflow into a first airflow and a second airflow. The separation mechanism includes an inlet conduit, a body in fluid communication with the inlet conduit, and at least one coalescing feature arranged within an interior of the body. A water extraction vessel is arranged in fluid communication with the separation mechanism. The water extraction vessel includes a first portion for receiving the first airflow and a second portion for receiving the second airflow. The first portion is configured to collect and remove water from the first airflow.

Abstract: An environmental control system of an aircraft including a compression device including a compressor having a compressor inlet and a compressor outlet, a primary inlet for supplying a first medium to the compressor inlet, and a secondary inlet for supplying a second medium to the compressor inlet.

Abstract: An air separation module includes a cylindrical canister and a separator. The cylindrical canister has a longitudinal axis, an inlet, an oxygen-depleted air outlet, and a drain portion with an oxygen-enriched air outlet. The separator is arranged within the cylindrical canister to separate a compressed air flow into an oxygen-depleted air flow fraction and an oxygen-enriched air flow fraction, the oxygen-depleted air flow fraction provided to the oxygen-depleted air outlet and the oxygen-enriched air flow fraction to the drain portion of the canister. The drain portion extends tangentially from the cylindrical canister to issue the oxygen-enriched air flow fraction with entrained condensate from the oxygen-enriched air outlet with a tangential flow component. Nitrogen generation systems and methods of removing condensate from air separation modules are also described.

Abstract: An air separation module includes a canister, a separator, and a first end cap. The canister has an interior, a first open end in fluid communication with the interior of the canister, and a second end opposite the first open end of the canister. The separator is arranged within the interior of the canister, the separator fluidly coupling the second open end of the canister with the first open end of the canister. The first end cap has a one-piece first end cap body, is fixed to the first open end of the canister and has a first flange portion and a first aircraft-mounting portion. The canister supported by the first aircraft-mounting portion through the first flange portion of the one-piece first end cap body without an intermediate support structure. Nitrogen generation systems and methods of making nitrogen generation systems are also described.

Abstract: An air cycle machine includes a housing, a duct, a bypass valve, and a plug. The duct extends from and connects two different portions of the housing and includes a first port and a second port. The first port is attached to the first inlet of the housing. The second duct is attached to the second inlet of the housing. The bypass valve is inserted into one of the first port and second port of the duct. The plug is inserted into the other of the first port and second port that the bypass valve is not inserted into. Both the first port and the second port are capable of receiving and forming a sealing interface with both of the bypass valve and the plug.

Abstract: An environmental control system of an aircraft with a power turbine includes a heat exchanger and a plenum attached to and in fluid communication with the heat exchanger. The plenum includes a housing with a first inlet fluidly connected to the power turbine, a second inlet fluidly connected to a source of ram air, and an outlet fluidly connected to the heat exchanger.

Abstract: An Environmental Control System (ECS) for an aircraft includes a ram air system having a ram inlet and a ram outlet. The ECS includes a cabin air compressor motor, a diverter valve, and a dedicated outlet. The cabin air compressor motor has a motor inlet passage and a motor outlet passage with the motor inlet passage being coupled to the ram inlet. The diverter valve includes a first diverter inlet, a first diverter outlet, and a second diverter outlet. The first diverter inlet is coupled to the motor outlet passage. The dedicated outlet is connected to the first diverter outlet in a flight mode of operation of the aircraft and the ram outlet is connected to the second diverter outlet in a ground mode of operation of the aircraft.

Abstract: A ram air module for use in a ram air system, the ram air module includes a diffuser having a diffuser body including an inlet end and an outlet end, a flow diverter assembly connected to the inlet end of the diffuser body, and a valve connected to the outlet end of the diffuser body.

Abstract: An air separation module includes a canister, a separator, and a perforated plate. The canister has a plenum portion connecting an inlet portion to an outlet portion, extends circumferentially about a canister axis, and has a plenum diameter that is larger than a canister diameter defined by the inlet and outlet portion of the canister. The separator is arranged within the canister and axially spans the plenum portion to separate air received at the inlet end portion into nitrogen-enriched and oxygen-enriched air flows. The perforated plate is seated within the plenum portion, fluidly couples the separator to an oxygen-enriched air outlet port defined by the plenum portion, and has a snap-fit major dimension smaller than the plenum diameter to radially support a portion of the separator axially spanning the plenum portion of the canister. Nitrogen generation systems and methods of making air separation modules are also described.

Abstract: A method of monitoring aircraft including removing a conical collector through a cabin exhaust valve of the aircraft wherein ambient cabin air has been driven from the cabin over a reagent fluid within the conical collector in order to collect a representative sample of the cabin air within the reagent fluid.

Abstract: An annular water removal system (AWRS) for an air cycle environmental control system (ECS) includes a line replaceable unit (LRU) configured to output air flow, and a water collector coupled to the LRU. The water collector includes an upper portion and a lower portion. The upper portion includes a coalescing unit having a collector inlet to receive the air flow and configured to coalesce moisture from the air flow output from the LRU. The lower portion includes a collection unit in fluid communication with the coalescing unit. The collection unit is configured to collect the moisture coalesced by the coalescing unit.

Abstract: A heat exchanger includes a header and an annular core fluidly connected to the header. The annular core includes an inner diameter, an outer diameter, first flow channels arranged in a first set of layers, and second flow channels arranged in a second set of layers and interleaved with the first flow channels. Each of the first flow channels includes a first inlet, a first outlet, and a first axial region extending between the first inlet and the first outlet. Each of the second flow channels includes a second inlet, a second outlet, and a second axial region extending between the second inlet and the second outlet.