51results about "Emergency oxygen systems" patented technology

The invention discloses an aircraft oxygen load distribution method based on a dynamic database, and relates to the field of aviation system engineering and control engineering, and the method comprises the steps: building a digital twin model through simulation software, obtaining the current state of aircraft oxygen, presetting the oxygen demands at different flight stages, and obtaining a digital twin model; performing multi-physics field coupling optimization on the digital twin model through an optimization algorithm, feeding back an optimized result to a dynamic database to obtain an oxygen distribution scheme, training an oxygen demand model by utilizing a federated learning technology, predicting oxygen demand in a future flight stage, and designing and deploying a self-repairing mechanism according to a prediction result; according to the method, the oxygen consumption condition is monitored in real time through the dynamic reconstruction algorithm, and the oxygen distribution scheme is intervened and optimized when it is detected that the oxygen distribution scheme is not matched with the oxygen consumption condition, so that the requirements of emergencies are met, and the error-tolerant rate and the reliability are greatly improved.

Methods, apparatuses, and systems for mechanically releasing a predetermined amount of supplemental oxygen to a user via a mechanical initiator are disclosed with the release of the amount of supplemental oxygen based on and in response to the combined factors of a user's determined oxygen consumption based on sensing a user's inhalation combined with determining the ambient pressure in the area of the user.

Oxygen-delivery systems (10B) are described. The systems (10B) 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 (34, 42).

There is provided an apparatus for preparing a ventilation gas mixture for pilots and crew of aircraft, the apparatus comprising a first gas mixer feed configured to receive exhaled air from a person, wherein the exhaled air comprises carbon dioxide, a second gas mixer feed configured to receive an air mixture comprising at least one gas, and a gas mixing device configured to receive the exhaled air and the air mixture from the first and second gas mixer feeds and combine the exhaled air with the air mixture in the gas mixing device to form a ventilation gas mixture. The apparatus further comprises a pressure adjuster configured to increase the pressure of the exhaled air in the first gas mixer feed so that it substantially matches the pressure of the air mixture in the second gas mixer feed.

A breathing gas supply system (10), potentially for combat aircraft, operative to decrease hypoxia and asynchronous breathing and to conserve breathing gases. An input valve (26) selectively permits breathing gas to fill a flexible gas reservoir (34) through a fluidic connector (28). Breathing gas can be maintained at an elevated pressure. The fluidic connector (28) delivers gas to an output interface (14), such as an oxygen mask (14). An inspiratory valve (30) is permitted to open when inspiration is sensed by an inspiratory sensor (32), and an expiratory valve (48) is permitted to open when expiration is sensed by an expiratory sensor (32). The inspiratory and expiratory sensors (32) can be separate or embodied as an inspiratory-expiratory sensor (32). A sensor reservoir (58) fluidically open to a volume between the output interface (14) and the face of the user can expand or compress to indicate inspiration or expiration. The inspiratory and expiratory valves (30, 48) can be electromagnetically operated.

Apparatus for supplying oxygen to a vehicle user, comprising a source of pressurized respiratory gas containing oxygen-enriched air, a flow-regulating and / or pressure-regulating unit, and at least one mask provided for supplying gas to the respiratory tract of said user, the regulating unit comprising at least one inlet connected to the source and at least one outlet connected to the mask, the regulating unit being configured to regulate the flow and / or the pressure of the respiratory gas supplied to the mask according to the respiratory demand of the user, the apparatus comprising at least one sensor measuring the pressure and / or the flow of respiratory gas delivered by the regulating unit to the mask, and an electronic data storage and processing unit configured to receive the measurements from the at least one sensor and to calculate, from these measurements, the frequency of the gas flows supplied to the mask and corresponding to the respiratory frequency of the user, to compare this calculated frequency against a threshold frequency and, when this calculated frequency is greater than the threshold frequency, to generate an audible and / or visual and / or vibratory warning signal.

The invention relates to an oxygen mask for supplying oxygen to a person, which can be modified for use on differently sized faces. The oxygen mask has a holding frame, which has a first cross-brace and a second cross-brace, a substantially gas-impermeable material arranged on the holding frame and which can be stretched between the first cross-brace and the second cross-brace, a headband connected to the holding frame, an exhalation valve arranged on the material and penetrating the material, and an oxygen supply line for providing oxygen to an inside of the oxygen mask, wherein the first cross-brace and the second cross-brace are arranged in two lateral holders, which are opposite each other, wherein at least the first cross-brace is flexible and wherein the distance of the lateral holders to each other is adjustable at least between a first and a second distance.

A monitoring system for pilots or co-pilots of aircraft is described. Gas concentrations can be measured using sensors. A control unit, in conjunction with a pressure sensor, is able to determine the pressure in the pilot's or co-pilot's breathing mask by means of a measurement maneuver (200).

An apparatus for preparing a ventilation gas mixture to a user comprises: a gas mixing device configured to receive oxygen through a first gas feed, the gas mixing device being further configured to received exhaled air from a person; a gas reservoir configured to receive the exhaled air from the gas mixing device through a second gas feed, wherein the gas reservoir is further configured to re-supply the exhaled air to the gas mixing device through the second gas feed; an altitude sensor configured to determine altitude information; a control system configured to receive the altitude information from the altitude sensor and further configured to control the flow of oxygen through the first gas feed based on the received altitude information; wherein the gas mixing device is arranged to combine the oxygen received through the first gas feed with the re-supplied exhaled air received through the second gas feed in order to prepare a ventilation gas mixture.

An oxygen mask (400) is disclosed herein. The oxygen mask (400) includes a first flexible material (402) having a first surface and a second surface, a first spring (404) disposed circumferentially around the first flexible material (402), the first spring (404) providing structural support to the oxygen mask (400) along a first plane, wherein the first flexible material (402) and the first spring (404) define an interior of the oxygen mask (400), an air valve (412) configured to allow air to pass from the interior of the oxygen mask (400) to an exterior of the oxygen mask (400), an air hose (410) coupled to the oxygen mask (400) and configured to allow an air flow into the oxygen mask (400), and a strap (408) coupled to the first flexible material (402) and the first spring (404), wherein the strap (408) is configured to pull the first flexible material (402) and the first spring (404) to conform to a 3D surface.

An oxygen pressure relief and ventilation system includes a flow fuse fluidly coupled downstream of a pressure regulator. The pressure regulator is operatively coupled to an oxygen tank, and the oxygen tank is located in an unpressurized compartment of an aircraft. A pressure relief valve is fluidly coupled downstream of the flow fuse. A ventilation pathway fluidly couples the unpressurized compartment with a pressurized compartment. The flow fuse and the pressure relief valve are configured to cooperatively mitigate downstream flow of pressurized oxygen if the pressure regulator fails. The ventilation pathway is configured to allow air from the pressurized compartment to pass through to the unpressurized compartment for diluting a concentrated oxygen in the unpressurized compartment.

The invention relates to a monitoring system (100) for flight staff (99) such as plane pilots, aircraft pilots, pilots, co-pilots or passengers of aircrafts or flight devices such as airplanes or helicopters of civil or military aviation, and passenger airplanes in airline traffic or charter traffic, in particular ultrafast airplanes. A sensor system (60) metrologically captures gas concentrations.

The invention relates to a method for controlling an oxygen tank (1) for an aircraft (10), the method being implemented by an onboard computer (12) of the aircraft (10), the method comprising the steps of: - repeatedly measuring a current value of a volume of oxygen in the tank (1) and storing the current value in a database; - calculating a mean oxygen consumption rate over an observation period on the basis of the current values stored in the database; - comparing the mean rate with a predetermined mean rate limit; - detecting a potential state of active oxygen consumption from the tank (1) over the observation period; and - flagging a leak from the tank if the mean oxygen consumption rate is higher than the predetermined mean rate limit and if no state of active consumption has been detected over the observation period.

An oxygen system for an aircraft may have a chemical oxygen generator; an oxygen mask; and a tube assembly extending from the chemical oxygen generator to the oxygen mask. The tube assembly may have a first tube and a second tube. The first tube defines a fluid conduit that fluidly couples the chemical oxygen generator to the oxygen mask in response to being in use. The second tube may be configured to house a plurality of lights therein.

Apparatus for supplying oxygen to a user of a vehicle, comprising a pressurized source (2, 3) of respiratory gas containing oxygen-enriched air, a flow rate and / or pressure regulating member (4) and at least one mask (5) intended to supply gas to the airways of said user, the regulating member (4) comprising at least one inlet connected to the source (2, 3) and at least one outlet connected to the mask (5), the regulating member (4) being configured to regulate the flow rate and / or the pressure of the respiratory gas supplied to the mask (5) according to the respiratory demands of the user, the apparatus (1) comprising at least one sensor (8, 9) measuring the pressure and / or the flow rate of respiratory gas delivered by the regulating member (4) to the mask (5) and an electronic data storage and processing member (6), which is configured to: receive the measurements from the at least one sensor (8, 9) and to calculate, from these measurements, the frequency of the flows of gas supplied to the mask (5) which correspond to the breathing rate of the user, compare this calculated frequency against a threshold frequency and, when this calculated frequency is above the threshold frequency, generate an audible and / or visual and / or vibrational warning signal (10, 11).

The invention belongs to civil aircraft passenger emergency oxygen supply, and particularly relates to a distributed electronic adjustment passenger emergency oxygen unit. Comprising a decentralized oxygen bottle assembly, an electromagnetic plunger latch, an oxygen supply control regulator, a passenger oxygen mask and a passenger oxygen mask box, the decentralized oxygen bottle assembly, the electromagnetic plunger latch and the oxygen supply control regulator are fixed in the passenger oxygen mask box, and the decentralized oxygen bottle assembly is connected with the oxygen supply control regulator through a pipeline. The oxygen control regulator is connected with the passenger oxygen mask through a pipeline, and the oxygen supply control regulator is connected with and controls the electromagnetic plunger latch through a cable; a switch of the electromagnetic plunger latch is used for controlling a small door of the passenger oxygen mask box, and the passenger oxygen mask falls after the small door is opened; a mooring rope is arranged on the passenger oxygen mask and is connected with the distributed oxygen bottle assembly; the oxygen supply control regulator is electrically connected with the onboard jettisoning control circuit, the onboard BIT module and the onboard avionics system and used for controlling oxygen supply to the passenger oxygen mask according to the onboard signals.

A piezoelectric actuator controlled smart flow regulator (300) is provided. The piezoelectric actuator controlled smart flow regulator includes an inlet chamber (302) and an actuator chamber (304). The inlet chamber includes an inlet port (310). The actuator chamber includes an exit port (312), a sealing disc (316, 416), and at least one piezoelectric actuator (318). The at least one piezoelectric actuator is coupled to the sealing disc. In a deactivated state, the sealing disc is in contact with the inlet port such that oxygen is prevented from flowing through the actuator chamber. In an activated state, responsive to receiving a voltage, the at least one piezoelectric actuator is configured to restrict thereby translating a center of the sealing disc away from the inlet port and provide an oxygen flow through the inlet port to the exit port.

A head armature for a respiratory system includes a cradle and a retention mechanism. The cradle is configured to receive a respiratory mask assembly in a stand-by position. The retention mechanism is configured to detachably connect the respiratory mask assembly with the head armature such that the respiratory mask assembly is movable from the stand-by position to a use position while connected to the head armature and such that the respiratory mask assembly is selectively detachable from the head armature in a stand-alone configuration whereby the respiratory mask assembly is disconnected from the head armature. In the use position, the respiratory mask assembly is configured to provide oxygen to a user. The head armature is configured to be worn on a head of the user such that the cradle is between the respiratory mask assembly and the user's head when the respiratory mask assembly is in the stand-by position.

An oxygen pressure relief and ventilation system includes a flow fuse fluidly coupled downstream of a pressure regulator. The pressure regulator is operatively coupled to an oxygen tank, and the oxygen tank is located in an unpressurized compartment of an aircraft. A pressure relief valve is fluidly coupled downstream of the flow fuse. A ventilation pathway fluidly couples the unpressurized compartment with a pressurized compartment. The flow fuse and the pressure relief valve are configured to cooperatively mitigate downstream flow of pressurized oxygen if the pressure regulator fails. The ventilation pathway is configured to allow air from the pressurized compartment to pass through to the unpressurized compartment for diluting a concentrated oxygen in the unpressurized compartment.

A hydrogen accumulation control system for monitoring and controlling leaked hydrogen within an interior space, in particular of an aircraft, comprises a hydrogen detection system installed within the interior space and configured to detect the presence of gaseous hydrogen in the interior space and to provide occurrence data on the detected hydrogen within the interior space; a system control configured to assess the occurrence data and to determine and initiate a remedial procedure for reduction of the detected hydrogen within the interior space; and a venting system configured to vent the interior space from the detected hydrogen according to the remedial procedure.

A monitoring system (100) for the flight crew (99), for example the pilot, the aviation pilot, the pilot, the co-pilot, of an aircraft or a flying machine, for example an airplane or a helicopter of civil or military aviation, a passenger plane in scheduled or charter flights, in particular also a hypersonic aircraft, is described. By means of a sensor device (60), the air concentration is detected with measuring technology.

The invention relates to an oxygen mask for supplying oxygen to a person, which can be modified for use on differently sized faces. The oxygen mask has a holding frame, which has a first cross-brace and a second cross-brace, a substantially gas-impermeable material arranged on the holding frame and which can be stretched between the first cross-brace and the second cross-brace, a headband connected to the holding frame, an exhalation valve arranged on the material and penetrating the material, and an oxygen supply line for providing oxygen to an inside of the oxygen mask, wherein the first cross-brace and the second cross-brace are arranged in two lateral holders, which are opposite each other, wherein at least the first cross-brace is flexible and wherein the distance of the lateral holders to each other is adjustable at least between a first and a second distance.

A piezoelectric actuator controlled smart flow regulator is provided. The piezoelectric actuator controlled smart flow regulator includes an inlet chamber and an actuator chamber. The inlet chamber includes an inlet port. The actuator chamber includes an exit port, a sealing disc, and at least one piezoelectric actuator. The at least one piezoelectric actuator is coupled to the sealing disc. In a deactivated state, the sealing disc is in contact with the inlet port such that oxygen is prevented from flowing through the actuator chamber. In an activated state, responsive to receiving a voltage, the at least one piezoelectric actuator is configured to restrict thereby translating a center of the sealing disc away from the inlet port and provide an oxygen flow through the inlet port to the exit port.

A breathing gas supply system, potentially for combat aircraft, operative to decrease hypoxia and asynchronous breathing and to conserve breathing gases. An input valve selectively permits breathing gas to fill a flexible gas reservoir through a fluidic connector. Breathing gas can be maintained at an elevated pressure. The fluidic connector delivers gas to an output interface, such as an oxygen mask. An inspiratory valve is permitted to open when inspiration is sensed by an inspiratory sensor, and an expiratory valve is permitted to open when expiration is sensed by an expiratory sensor. The inspiratory and expiratory sensors can be separate or embodied as an inspiratory-expiratory sensor. A sensor reservoir fluidically open to a volume between the output interface and the face of the user can expand or compress to indicate inspiration or expiration. The inspiratory and expiratory valves can be electromagnetically operated.

A vehicle includes an internal cabin. A plurality of passenger service units (PSUs) are within the internal cabin. An emergency oxygen system is within the internal cabin. The emergency oxygen system is separate and distinct from the plurality of PSUs. A method includes providing a plurality of passenger service units (PSUs) within an internal cabin of a vehicle, and providing an emergency oxygen system within the internal cabin, wherein the emergency oxygen system is separate and distinct from the plurality of PSUs.

The application discloses an aircraft oxygen load allocation method based on a dynamic database, relates to the field of aviation system engineering and control engineering, and comprises the following steps: a digital twin model is established by using simulation software, the current state of aircraft oxygen is obtained, oxygen demand under different flight stages is preset, a multi-physical field coupling optimization is performed on the digital twin model by using an optimization algorithm, the optimized result is fed back to the dynamic database, an oxygen allocation scheme is obtained, a federal learning technology is used to train an oxygen demand model, oxygen demand in future flight stages is predicted, and a self-repairing mechanism is designed and deployed according to the prediction result; and the application realizes real-time monitoring of oxygen consumption by using a dynamic reconstruction algorithm, intervenes when the oxygen allocation scheme does not match the oxygen consumption, and optimizes the oxygen allocation scheme, so that the demand of emergent conditions is met, and the fault tolerance and reliability are greatly increased.

An oxygen mask is disclosed herein. The oxygen mask includes: a first flexible material having a first surface and a second surface; the first spring is arranged around the first flexible material in the circumferential direction, the first spring provides structural support for the oxygen mask along a first plane, and the first flexible material and the first spring define the interior of the oxygen mask; an air valve configured to allow air to flow from the interior of the oxygen mask to an exterior of the oxygen mask; an air hose coupled to the oxygen mask and configured to allow air to flow into the oxygen mask; and a strip coupled to the first flexible material and the first spring, where the strip is configured to pull the first flexible material and the first spring to conform to a 3D surface.

Methods, apparatuses, and systems for mechanically releasing a predetermined amount of supplemental oxygen to a user via a mechanical initiator are disclosed with the release of the amount of supplemental oxygen based on and in response to the combined factors of a user's determined oxygen consumption based on sensing a user's inhalation combined with determining the ambient pressure in the area of the user.

A vehicle includes an internal cabin. A plurality of passenger service units (PSUs) are within the internal cabin. An emergency oxygen system is within the internal cabin. The emergency oxygen system is separate and distinct from the plurality of PSUs. A method includes providing a plurality of passenger service units (PSUs) within an internal cabin of a vehicle, and providing an emergency oxygen system within the internal cabin, wherein the emergency oxygen system is separate and distinct from the plurality of PSUs.

A breathing gas supply system (10), potentially for combat aircraft, operative to decrease hypoxia and asynchronous breathing and to conserve breathing gases. An input valve (26) selectively permits breathing gas to fill a flexible gas reservoir (34) through a fluidic connector (28). Breathing gas can be maintained at an elevated pressure. The fluidic connector (28) delivers gas to an output interface (14), such as an oxygen mask (14). An inspiratory valve (30) is permitted to open when inspiration is sensed by an inspiratory sensor (32), and an expiratory valve (48) is permitted to open when expiration is sensed by an expiratory sensor (32). The inspiratory and expiratory sensors (32) can be separate or embodied as an inspiratory-expiratory sensor (32). A sensor reservoir (58) fluidically open to a volume between the output interface (14) and the face of the user can expand or compress to indicate inspiration or expiration. The inspiratory and expiratory valves (30, 48) can be electromagnetically operated.