Abstract: Assembly intended to be arranged in an aircraft cockpit having a pressurized cabin, in order to supply a breathing gas to a crew member, said assembly comprising a respiratory mask having an oronasal face cover and a harness, the oronasal face cover having a respiratory cavity and being suitable for applying on the face of the crew member around the mouth and nose, the harness forming a loop adapted to be extended around the head of the user on a side opposite from the oronasal face cover so as to hold the oronasal face cover on the face of the user, and a storage device, said storage device comprising a base and a platform, the platform being mounted so as to be movable relative to the base between a retracted position and an extended position, the platform having a receiving surface, the receiving surface of the platform being adapted to receive the respiratory mask in a storage position where the harness holds the oronasal face cover against the receiving surface of the platform by encircling the platform

Abstract: Embodiments of the present disclosure relate generally to systems and methods for providing improved aircraft fuel cell systems. In one embodiment, the system provides separate zones, maintaining various equipment components in separate controlled hydrogen concentration zones. In one embodiment, the fuel cell system provided may be simpler such that it functions without a power converter and autonomous such that it functions without need for power from any aircraft supply.

Abstract: Embodiments provide methods for storing a respiratory mask. In one embodiment, the respiratory equipment may include a respiratory mask having a front side and a rear side and a cavity having an opening in the rear side. There may also be provided an inflatable harness adapted to maintain the respiratory mask against the user face, and a storage element comprising a housing. In one embodiment, the method may include pulling on the harness on the front side of the respiratory mask in order to place the harness on the respiratory mask in an storage position outside said cavity, and maintaining the harness on the respiratory mask in the storage position and inserting the respiratory mask into the housing of the storage element.

Abstract: A container for an oxygen supply unit is described. The container may have a container well, wherein a container door can be pivotably joined at a container well's edge, wherein the container is provided with a sensor system, adapted to indicate a status and/or change of status of the door, in particular relative to the well. A system of an arrangement of a number of oxygen supply devices in a ceiling-panel along an aircraft cabin, in particular along an aircraft cabin alley of seats, also is described, wherein each oxygen supply unit is stored in a container.

Abstract: A respiratory equipment (1) comprising: a respiratory mask (10) adapted to be applied in a use position around a nose and a mouth to a user, an inflatable harness (20), a gas supply tube (2) connected to the respiratory mask at a downstream end (2b), a storage element (30) comprising a housing (32) adapted to store the respiratory mask (10) in a storage position, and a retaining device (40) including a leash (46) and a releasably holding portion (42, 44) connected to the leash (46), the leash having a connecting portion (47) connected to the harness (20) and a securing portion (45) connected to the storage element (30).

Abstract: Disclosed is an aircraft resource management system. The system may include at least one fuel cell cluster having at least one fuel cell system configured to receive and convert a hydrogen input comprising hydrogen and an oxygen input comprising a fluid having an initial oxygen content so as to yield a number of products. The products can include water, thermal energy, an oxygen-depleted product comprising the fluid having a second oxygen content lower than the initial oxygen content, and electrical power. The system may include at least one load cluster with at least one load configured to utilize at least one product of the fuel cell cluster. The system may compare a demand level of the load cluster with a supply level of the fuel cell cluster and manage operating levels of the fuel cell cluster based at least in part on the comparison.

Abstract: A breathing mask adapted to be placed over a wearer's face, comprises a mask body including a gas inlet port to be disposed in flow communication with the wearer's breathing passage for flow of a gas in a predetermined flow stream there through upon inhalation by the wearer; a communications microphone (30) mounted to said mask body to capture the voice of the wearer, said communications microphone generating sound signals; an attenuation device (34) for attenuating said sound signals; a sound monitor (36) for monitoring the intensity of sound near the communications microphone in a predetermined frequency range, connected to a controller device (38) for activating the attenuation device when the sound intensity monitored by the sound monitor is in a predetermined level range.

Abstract: Embodiments provide methods for storing a respiratory mask. In one embodiment, the respiratory equipment may include a respiratory mask having a front side and a rear side and a cavity having an opening in the rear side. There may also be provided an inflatable harness adapted to maintain the respiratory mask against the user face, and a storage element comprising a housing In one embodiment, the method may include pulling on the harness on the front side of the respiratory mask in order to place the harness on the respiratory mask in an storage position outside said cavity, and maintaining the harness on the respiratory mask in the storage position and inserting the respiratory mask into the housing of the storage element.

Abstract: An aircraft wing element comprises two temperature sensors that are situated on each side of an electrothermal mat, between a structure portion and a shield of said wing element. A shield temperature can be measured more accurately, and a thermal energy flow that is transferred to the shield can be evaluated.

Abstract: The invention relates to an aircraft passenger emergency oxygen supply device comprising an oxygen mask having a mask body with a first opening for covering mouth and/or nose of the passenger, a second opening connecting said first opening with a source of oxygen, a passenger service unit, a connecting line fixed to the oxygen mask body at one end and having a coupling at the other end for coupling said line to the passenger service unit wherein a chemical reaction component is comprised in the oxygen mask.

Abstract: The invention relates to a tank for receiving fuel, said tank comprising a venting system comprising a flap for closing an opening made in the tank, said flap being subjected to a float and mounted in a hinged manner in the tank so as to adopt a closed position, pushed by the float when the level of fuel in the tank reaches a certain threshold, and an open, venting position, driven by the float when the level of fuel is below said threshold. According to the invention, the flap comprises a valve controlled by means that can open the valve when the flap is in a closed position and the level of fuel is below said threshold.

Abstract: Embodiments of the present disclosure relate generally to the use of the fuel cell systems on board aircraft and other passenger transportation vehicles and to methods of using heat, air, and water generated by such fuel cell systems. The heat may be used to address condensation within the aircraft. The heat may be used to help evaporate excess water that would otherwise condense in the aircraft skin. The excess water collected may be used to create humidification for cabin air. In other examples, the heat, warmed air, or warmed water may be delivered to other locations or heating systems for beneficial use.

Abstract: Described are inerting systems that may be used on board an aircraft or other passenger transportation vehicle to reduce a risk of fire due to electronic components or to other elements in a compartment and to assist in preventing or extinguishing any fire or hazardous condition that may occur. The systems include a source of inert gas such as oxygen depleted air generated from a fuel cell on board the aircraft. The oxygen depleted air or other inert gas is conveyed through ducts to compartments that house the electronics, thus changing the conditions in the compartment to be less conducive to fire.

Abstract: The invention relates to a system to deliver a respiratory gas to crew members in a cabin of an aircraft. The system includes at least one respiratory mask, an ambient air inlet for admission of ambient air into the respiratory mask, a source of additional gas, supply lines to transport the additional gas to the respiratory mask, a mixing chamber provided on the supply lines to mix the additional gas with ambient air to supply a respiratory gas corresponding to a mixture of the additional gas and the ambient air to the respiratory mask, regulation system to regulate the additional gas content of the respiratory gas at least partly as a function of the aircraft altitude.

Abstract: A method for determining a characteristic such as partial pressure or percentage of a gaseous constituent in a first gas mixture flow in a flow chamber in which there is alternating flow in opposite directions between the first gas mixture flow and a second gas mixture flow. The steps may include a) introducing the first gas mixture flow into a sensing chamber when the first gas mixture flow flows in the flow chamber, b) preventing introduction of gas from the flow chamber into the sensing chamber at least when the second gas mixture flow flows in the flow chamber, c) sensing the characteristic of the first gas mixture flow in the sensing chamber.

Abstract: The invention relates to an emergency oxygen device for passenger of an aircraft, including a chemical oxygen generator including a chemical oxygen source and an activation unit for initiating a chemical reaction of the chemical oxygen source producing oxygen, at least two oxygen masks each connected with the chemical oxygen generator for receiving an oxygen fluid flow from the chemical oxygen generator after the activation unit has initiated the chemical reaction, and a mechanical activation assembly for activating the activation unit. The activation unit is activated by a mechanical force exerted onto an activation element of the activation unit and the mechanical activation assembly includes for each of the at least two oxygen masks a first mechanical connection from the activation element to a fixation element releasably mounted to the emergency oxygen device and a second mechanical connection from the fixation element to the oxygen mask.

Abstract: Described are optical sensing systems. The systems may perform reliably in explosive environments and provide eye protection should breakage of an optical fiber be detected. Sensors of the systems additionally may be self-managing, acquiring and transmitting sensed data as available electrical power permits. The systems beneficially may be used on-board aircraft.

Abstract: The invention relates to an emergency oxygen supply device for aircraft inhabitants, comprising a container, wherein an oxygen mask is positioned inside said container, a releasable cover and a latch mechanism comprising a latch locking said cover lid. According to the invention said latch mechanism comprises a permanent magnet interacting with a magnetisable element an exerting a magnetic holding force onto said magnetisable element to hold said latch in a locking position, wherein a solenoid is positioned adjacent to the permanent magnet, said solenoid being connected to a control unit said control unit being adapted to receive an opening signal and to provide a current flowing through said solenoid in response to such opening signal, wherein said solenoid is arranged and dimensioned such that the current flowing through said solenoid reduces said magnetic holding force to such a level that the latch is released in a n unlocking position.

Abstract: The invention relates to a regulation device for a source of breathable gas, comprising a reaction medium adapted to perform an exothermic reaction for the production of breathable gas, the reaction medium surrounding an interior reaction volume having a breathable gas outlet. The invention further relates to a chemical oxygen generator system for the provision of breathable gas in an aircraft as well as to a method for regulating a source of breathable gas comprising the step of initiating an exothermic reaction of a reaction medium for the production of breathable gas, the reaction medium surrounding an interior reaction volume having a breathable gas outlet, wherein the breathable gas is flowing through the breathable gas outlet.

Abstract: A monitoring system to be installed in a cabin (100a-100c) of an aircraft (100) or spacecraft for passenger transportation comprises at least one imaging device and at least one output device. Information displayed by the output device comprises indication of whether a passenger seat (110) in the cabin is occupied or empty. For more reliable information, several types of imaging devices may be used within the system, in particular selected among a visible light camera, a near-infrared lighting source combined with a near-infrared camera, a thermal camera, and a range imaging device.