Abstract: An emergency oxygen system for aircraft comprising: a breathing gas supply circuit to be connected upstream to a source of breathing gas and downstream to at least one mask, a flow control valve configured to adjust the flow of breathing gas supplied to the mask, an electronics board configured to control the flow control valve, a power source, a switching device interposed between the power source and the electronics board, the switching device comprising a switch configured to have a first state in which power from the power source is supplied to the electronics board and a second state in which the electronics board is not supplied with power from the power source.

Abstract: A regulator assembly for an aircrew breathing mask is provided The regulator assembly includes a support, a mode selection knob movable between a first position, a second position and a third position, the mode selection knob comprising a base pivotably mounted on the support with respect to an axis of rotation, and a cover supported by the base. The cover can be movable relative to the base between a locked position of the mode selection knob and an unlocked position of the mode selection knob, the locked position locking the rotation of the mode selection knob from the second position to the third position, the unlocked position permitting rotation of the mode selection knob from the second position to the third position.

Abstract: Locking device comprising: a support, a first locking member and a second locking member, the first locking member being mounted on the support and configured to move between a locked position and an unlocked position, an intermediate member movable between a retaining position and a release position, the intermediate member in the retaining position retaining the first locking member in the locked position, and a shape-memory member, the shape-memory member being connected to the intermediate member and configured to move the intermediate member to the release position when the shape-memory member is activated.

Abstract: A control unit for an aircraft crew member's breathing mask, includes a support, a mode-selection knob pivotally mounted on a holder between at least a first position, a second position and a third position. A controller supplies a breathing cavity in three modes of operation depending on the position of the mode-selection knob. A locking/unlocking system includes an operating member moveable between a locking position and an unlocking position. The locking position blocks the rotation of the mode-selection knob from the second position to the third position, and the unlocking position allows rotation of the mode-selection knob from the second position to the third position.

Abstract: A regulator assembly for an aircrew breathing mask includes a support and a mode selection knob mounted with the ability to pivot on the support. The selection knob is able to pivot between at least a first position, a second position and a third position. The mask further includes regulator designed to supply a breathing cavity at least in three modes of operation according to the position of the mode selection knob. At least one locking/unlocking device locks and unlocks the rotation of the mode selection knob towards the third position. The locking/unlocking device comprising has an operating member that pivots between a position in which the rotation of the mode selection knob is locked, and a position in which the rotation of the mode selection knob is unlocked.

Abstract: A system for delivering breathing gas to passengers includes: a face mask including a face part having a breathing cavity, a tube configured to be supplied by pressurized breathing gas, and a reservoir bag disposed between the tube and the face part. A passage connects the reservoir bag to the breathing cavity so that the system is configured to supply the breathing cavity through the reservoir bag. The reservoir bag includes a front portion and a back portion. The front portion is connected to the face mask, and the system has a stowed configuration and a deployed configuration. In the stowed configuration, the reservoir bag is maintained folded between a backing and the face part.

Abstract: Oxygen-delivery systems are described. The systems may supply emergency respiratory gas on demand to aircraft passengers. To reduce risk of blockage of tubes delivering anti-blocking gas to the face masks worn by the passengers, the systems may be designed to provide a continuous trickle flow of respiratory gas, or one or more anti-blocking pulses of gas, into a delivery tube.

Abstract: An emitting device includes: an oscillator configured for generating at least one carrier wave; an emitter including: at least one input connected to the oscillator; an activation input configured for receiving a signal representative of data to be transmitted; at least one output configured to generate a carrier wave modulated by the signal representative of the data to be transmitted; a communication link connected to the output of the emitter; a power line connected to the communication link at a connection point; a capacitive coupling component connected between the output of the emitter and the connection point. A receiving device and a system for transmission are also described.

Abstract: A fuel cell system for an aircraft includes a hydrogen burner, an oxidizing agent, and a fuel cell. The hydrogen burner has a first inlet suitable for receiving a first oxidizing agent, a second inlet capable of receiving at least hydrogen, and an outlet suitable for delivering a second oxidizing agent and heat. The oxidizing agent conditioning system has an inlet and an outlet, said inlet being suitable for receiving the second oxidizing agent and heat, said outlet being capable of delivering the conditioned second oxidizing agent. The fuel cell has an anode and a cathode, the cathode has a cathode inlet connected to the outlet of the oxidizing agent conditioning system, the cathode inlet receiving the conditioned second oxidizing agent.

Abstract: A respiratory equipment for an aircraft, a pilot or first officer of the aircraft forming a user of the respiratory equipment, the respiratory equipment comprising a head armature, configured to be worn on the user's head, a respiratory mask configured to be applied, in a use position around the mouth and nose of a user, an inflatable harness configured to be coupled to a pressurized gas source, an inflation of the inflatable harness causing an extension of the inflatable harness such that the respiratory mask can be brought opposite the mouth and nose of a user, and a purge of the inflatable harness causing a constrained application of the inflatable harness against the mouth and nose of a user, wherein the head armature comprises at least an occipital member, and a front cradle for receiving and lodging the respiratory mask in a waiting position, wherein the inflatable harness is fixed to the occipital member and the inflatable harness is coupled to the respiratory mask.

Abstract: Breathing apparatus (100) for aircraft including: a breathing mask (10) comprising an oronasal face cover (14) and a support (17), the oronasal face cover (14) having a cavity (13, 15) and the support (17) supporting a transparent lens (18) and comprising an upper edge portion (19a), an inflatable harness (20) configured for extending around the user's head opposite the shell, the harness (20) comprising at least one rear portion, a guiding link (110) having an upper end (110a) and a lower end (110b), the upper end (110a) being linked to the upper edge portion (19a), the lower end (110b) being linked to the rear portion of the harness (20), and a plate (120) linked to the lower end (110b) of the guiding link (110) and having an abutment face configured for contacting the oronasal face cover (14), facing the cavity (13).

Abstract: A system for delivering breathing gas to passengers on-board an aircraft, including: a source of breathing gas, at least one face mask for passengers, a reservoir associated with each face mask, a delivery valve for each face mask, the delivery valve being disposed between the source of breathing gas and the reservoir, the reservoir being disposed between the delivery valve and the face mask, a sensor associated with each reservoir and configured to sense a filling of the reservoir, and a controller configured to control the delivery valve in a continuous supply mode to provide a continuous flow of breathing gas to the reservoir and to interrupt the continuous flow of breathing gas when the filing sensed by the sensor is a filling threshold.

Abstract: A protection equipment including a base member with a deformable membrane which includes a central orifice with an adaptive size, configured to selectively circumvent in a substantially airtight manner the neck of the user, a hood coupled in a substantially airtight manner the base member, whereby a substantially closed volume is provided, the closed volume being delimited by the deformable membrane, the base member, the neck and the hood, and an aperture control device to change the central orifice of the deformable membrane from a large aperture state to a small aperture state.

Abstract: A vessel designed for enclosing at least one sensor is arranged within a fuel tank. The vessel is provided with a fuel inlet connected to a refuelling arrangement of the tank, and with through-holes for the fuel to exit the vessel to the tank or to enter the vessel from the tank. It allows that measurement results which are provided by the sensor during a refuelling operation relate to the fuel currently admitted into the tank, separately from the fuel initially contained in the tank before the refuelling operation has started.

Abstract: A data transmission system including an emitting device, a receiving device and a communication link, wherein the emitting device includes: a radio frequency emitter connected to the communication link; a power line connected to the communication link at a connection point, wherein the power line is brought to a supply voltage; and a capacitive coupling component connected between the radio frequency emitter and the connection point, wherein the receiving device includes: a radio frequency receiver connected to the communication link for receiving the radio frequency signal; a power line connected to the communication link at a connection point; and a capacitive coupling component connected between the connection point and the radio frequency receiver, wherein the capacitive coupling components transmit the radio frequency signal and block the supply voltage.

Abstract: A capacitor fuel probe comprises a plurality of capacitor segments which are superposed on one another along a probe axis. The capacitor segments are distributed into three sets and connected electrically in parallel within each set separately. A capacity measurement which is performed for all the sets allows determining a fuel level while taking into account a possible variation of a dielectric constant of the fuel parallel to the probe axis. Top height values hn of the capacitor segments are selected so that hn?1<hn·(Kmin?1)/(Kmax?1), for any integer n-value from 2 to N, N being the number of capacitor segments, n varying according a superposition order of the capacitor segments, and Kmin and Kmax being minimum and maximum values for a fuel dielectric constant which are prescribed for the capacitor fuel probe.

Abstract: Embodiments of the present invention provide a single coolant loop (40) that can be used for cooling at least two systems (100, 26) that are generally operable at two different temperatures. Rather than providing two separate cooling loops that can provide the two different cooling temperatures, there is provided a single cooling loop (40) that can route, harness, and mix heated coolant so that the two system can be served by a single loop.

Abstract: An aircraft communication network comprises in-flight entertainment terminals, an addressing system, communication links and one or more cameras intended for installation inside the aircraft. A passenger can thus receive on their in-flight entertainment terminal, images captured by one of the cameras or data deduced from the images. Said images or data inform him of crowding in common access areas or shared use areas inside the aircraft.