CN113562181B - Novel long-endurance passenger oxygen supply device - Google Patents
Novel long-endurance passenger oxygen supply device Download PDFInfo
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- CN113562181B CN113562181B CN202110860710.1A CN202110860710A CN113562181B CN 113562181 B CN113562181 B CN 113562181B CN 202110860710 A CN202110860710 A CN 202110860710A CN 113562181 B CN113562181 B CN 113562181B
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- oxygen
- oxygen supply
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- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 169
- 239000001301 oxygen Substances 0.000 title claims abstract description 169
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 166
- 238000003860 storage Methods 0.000 claims abstract description 37
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 34
- 238000004132 cross linking Methods 0.000 claims abstract description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000008054 signal transmission Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005315 distribution function Methods 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D13/00—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft
- B64D13/06—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft the air being conditioned
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D13/00—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft
- B64D13/06—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft the air being conditioned
- B64D2013/0603—Environmental Control Systems
- B64D2013/0681—Environmental Control Systems with oxygen control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D2231/00—Emergency oxygen systems
- B64D2231/02—Supply or distribution systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
The invention discloses a novel long-endurance passenger oxygen supply device, which relates to the technical field of aviation oxygen supply and comprises an oxygen supply unit I, an oxygen supply unit II, a storage box assembly, an oxygen control box and a pressure reducer assembly, wherein the oxygen supply unit I is connected with the oxygen supply unit II through a pipeline; one end of the pressure reducer component is connected with an airplane oxygen source through an oxygen pipeline, the other end of the pressure reducer component is connected with one of the joints on the four-way pipe joint through the oxygen pipeline, and the other three joints on the four-way pipe joint are respectively connected with the first oxygen supply unit and the second oxygen supply unit through the oxygen pipeline; the oxygen control box, the oxygen supply unit I, the oxygen supply unit II and the storage box assembly are connected together in a cross-linking mode through conducting wires to form an electric control whole loop; a pressure sensor and a control panel are arranged in the oxygen control box; the novel oxygen supply device for passengers during long endurance can meet the requirement of flight during long endurance (more than 2 hours); meanwhile, the system has the characteristics of manual control, automatic control, mechanical control, self-checking alarm, signal transmission, good environmental adaptability and the like.
Description
Technical Field
The invention relates to the technical field of aviation oxygen supply, in particular to a novel long-endurance passenger oxygen supply device.
Background
In the flying process of an airplane, pressure is possibly applied to a cabin or other emergency situations exist, if passengers in the cabin are not timely supplemented with oxygen, the life health of the passengers can be seriously affected, even the lives of the passengers are threatened, an aviation accident occurs, and in order to ensure safety, the oxygen supply device is taken as necessary airborne equipment of the airplane and is widely applied to various aircrafts.
Most of passenger oxygen supply devices on the market at present are emergency oxygen supply equipment, the oxygen supply time is approximately 15min, 22min and the like, the oxygen supply time is short, and the passenger oxygen supply device is not suitable for long-time flight with special requirements.
Disclosure of Invention
The invention aims to provide a novel oxygen supply device for passengers during long endurance, which solves the problems in the prior art and can meet the requirement of flight during long endurance (more than 2 hours); meanwhile, the device has the characteristics of manual control, automatic control, mechanical control, self-checking alarm, signal transmission, good environmental adaptability and the like.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a novel long-endurance passenger oxygen supply device, which comprises an oxygen supply unit I, an oxygen supply unit II, a storage box assembly, an oxygen supply control box and a pressure reducer assembly, wherein the oxygen supply unit I is connected with the oxygen supply unit II through a pipeline;
one end of the pressure reducer assembly is connected with an airplane oxygen source through an oxygen pipeline, the other end of the pressure reducer assembly is connected with one of the connectors on the four-way pipe connector through the oxygen pipeline, and the other three connectors on the four-way pipe connector are respectively connected with the two oxygen supply units I and the two oxygen supply units II through the oxygen pipeline to form a whole oxygen conveying loop;
the oxygen control box, the oxygen supply unit I, the oxygen supply unit II and the storage box assembly are connected together in a cross-linking mode through conducting wires to form an electric control whole loop; the oxygen control box is connected with a temperature and pressure sensor and a display system on an aircraft oxygen source through a temperature and pressure signal line in a cross mode, can receive temperature and pressure signals transmitted by the temperature and pressure sensor, converts the received temperature and pressure signals into pressure signals with a specified format and transmits the pressure signals to the display system of the aircraft, and simultaneously transmits self-checking signals to the display system of the aircraft; the storage box assembly is internally provided with a control button, and the storage box assembly and the oxygen control box are connected with an airplane power supply through wires.
Preferably, the first oxygen supply unit and the second oxygen supply unit are fixed on the aircraft framework above the passenger seat through screws.
Preferably, the storage box assembly, oxygen control box and pressure reducer assembly are all secured to the aircraft frame by screws.
Preferably, the pressure reducer assembly comprises a pressure reducer and a pressure reducer bracket arranged at the bottom of the pressure reducer, and the pressure reducer bracket is fixed on the airplane framework through screws.
Preferably, the oxygen supply unit one with the oxygen supply unit two all includes oxygen box subassembly, expansion area, face guard subassembly, flow control distributor and electric control lock, wherein the oxygen box subassembly includes box body and lid, the electric control lock passes through screw connection on the box body, its opening is controlled to lid accessible electric control lock, the electric control lock with pass through the wire with the control panel in the oxygen control box and connect, the face guard subassembly accomodate in the box body, place and take the top in the expansion, the expansion area is connected on the box body, flow control distributor unit install in the box body.
Preferably, the storage box subassembly includes safety cover, storage box, clamp plate, hexagonal self-locking nut, pressure spring, cylinder head hexagon socket head cap screw, extension spring, rotation axis, extension spring peg, button switch, the safety cover pass through the rotation axis install in on the storage box, can wind the rotation axis is rotatory, extension spring one end is connected on the storage box, the other end passes through the extension spring peg is installed on the safety cover, button switch install in the safety cover, the storage box passes through cylinder head hexagon socket head screw the pressure spring hexagon self-locking nut the clamp plate combined action is fixed on aircraft framework.
Preferably, the control board in the oxygen control box is also connected with a display system in the airplane through a signal wire.
Compared with the prior art, the invention has the following beneficial technical effects:
1. the novel long-endurance passenger oxygen supply device provided by the invention can be used for a long time as a terminal execution device of an oxygen supply system, and meets the requirement of continuous oxygen supply in long endurance. The aircraft oxygen source pressure monitoring system has the advantages that manual control, automatic control and mechanical control are realized, the redundancy is increased, the safety is improved, and meanwhile, the aircraft oxygen source pressure monitoring system has the functions of monitoring the aircraft oxygen source pressure in real time and transmitting pressure information to an aircraft platform; the self-checking function of the device is realized; the flow of oxygen can be automatically adjusted and distributed; and the invention provides a test function which can actually check the function state of the invention, thereby avoiding the adverse effect on the system maintenance work when the product function is tested.
2. The novel oxygen supply device for passengers in long voyage provided by the invention has good reliability and applicability, the number of the oxygen supply units can be flexibly configured according to the number of passengers in an airplane, and the number can be adjusted by only increasing or reducing the number of the interfaces; meanwhile, a series of designs of the invention can meet the aviation requirements, and the environment adaptability is good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a novel long-endurance passenger oxygen supply device in the invention;
FIG. 2 is a schematic view of the construction of the pressure reducer assembly of the present invention;
FIG. 3 is a schematic structural diagram of an oxygen supply unit I or an oxygen supply unit II according to the present invention;
FIG. 4 is a schematic structural diagram of a storage box assembly according to the present invention;
FIG. 5 isbase:Sub>A sectional view taken along line A-A of FIG. 4;
FIG. 6 is a schematic view showing the construction of the oxygen control cassette according to the present invention;
in the figure: 1-first oxygen supply unit, 2-second oxygen supply unit, 3-storage box assembly, 4-oxygen control box, 5-pressure reducer assembly, 6-oxygen pipeline, 7-four-way pipe joint, 8-temperature and pressure signal line, 9-airplane power supply, 10-pressure reducer, 11-pressure reducer bracket, 12-oxygen box assembly, 13-unfolding belt, 14-mask assembly, 15-flow regulation distributor assembly, 16-button switch, 17-protective cover, 18-pressure plate, 19-display system, 20-airplane oxygen source, 21-electric control lock, 22-storage box, 23-hexagonal self-locking nut, 24-pressure spring, 26-cylindrical head hexagon socket head screw, 27-tension spring, 28-rotating shaft and 29-tension spring hanging shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention aims to provide a novel oxygen supply device for passengers during long-term navigation, which is used for solving the problems in the prior art.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The novel oxygen supply device for passengers in long voyage in the embodiment, as shown in fig. 1-6, comprises an oxygen supply unit I1, an oxygen supply unit II 2, a storage box assembly 3, an oxygen control box 4 and a pressure reducer assembly 5;
one end of the pressure reducer component 5 is connected with an airplane oxygen source 20 through an oxygen pipeline 6, the other end of the pressure reducer component is connected with one of the joints on a four-way pipe joint 7 through the oxygen pipeline 6, and the other three joints on the four-way pipe joint 7 are respectively connected with two oxygen supply units I1 and one oxygen supply unit II 2 through the oxygen pipeline 6 to form a whole oxygen conveying loop;
the oxygen control box 4, the oxygen supply unit I1, the oxygen supply unit II 2 and the storage box assembly 3 are connected together in a cross-linking way through a lead to form an electric control whole loop; the oxygen control box 4 is internally provided with a pressure sensor and a control panel, the oxygen control box 4 is crosslinked with a temperature and pressure sensor and a display system on an aircraft oxygen source 20 through a temperature and pressure signal line 8, the oxygen control box 4 is crosslinked with the temperature and pressure sensor and the display system on the aircraft oxygen source 20 through a signal line, can receive a temperature and pressure signal transmitted by the temperature and pressure sensor, convert the received temperature and pressure signal into a pressure signal with a specified format and transmit the pressure signal to the display system of the aircraft, and simultaneously transmit a self-detection signal to the display system of the aircraft; the storage box component 3 contains a control button, and the storage box component and the oxygen control box 4 are connected with the airplane power supply through wires.
In the embodiment, the first oxygen supply unit 1 and the second oxygen supply unit 2 are fixed on an airplane framework above a passenger seat through screws; the storage box component 3, the oxygen control box 4 and the pressure reducer component 5 are all fixed on the airplane framework through screws.
As shown in fig. 2, the pressure reducer assembly 5 includes a pressure reducer 10 and a pressure reducer bracket 11 provided at the bottom of the pressure reducer 10, and the pressure reducer bracket 11 is fixed to the aircraft frame by screws.
In this embodiment, the first oxygen supply unit 1 and the second oxygen supply unit 2 have the same structure and are different only in size, as shown in fig. 3, the first oxygen supply unit 1 and the second oxygen supply unit 2 both include an oxygen box assembly 12, an expansion belt 13, a mask assembly 14, a flow regulation distributor assembly 15 and an electric control lock 21, wherein the oxygen box assembly 12 includes a box body and a box cover, the electric control lock 21 is connected to the box body through a screw, the box cover can be opened under the control of the electric control lock 21, the electric control lock 21 is connected to a control panel in the oxygen control box 4 through a wire, the mask assembly 14 is accommodated in the box body and placed above the expansion belt 1, the expansion belt 13 is connected to the box body, and the flow regulation distributor assembly 15 is installed in the box body.
As shown in fig. 4 and 5, the storage box assembly 3 includes a protection cover 17, a storage box 22, a pressing plate 18, a hexagonal self-locking nut 23, a compression spring 24, a hexagon socket head cap screw 26, a tension spring 27, a rotation shaft 28, a tension spring hanging shaft 29 and a button switch 16, the protection cover 17 is installed on the storage box 22 through the rotation shaft 28 and can rotate around the rotation shaft 28, one end of the tension spring 27 is connected on the storage box 22, the other end of the tension spring is installed on the protection cover 17 through the tension spring hanging shaft 29, the button switch 16 is installed in the protection cover 17, and the storage box 22 is fixed on an aircraft framework through the combined action of the hexagon socket head cap screw 26, the compression spring 24, the hexagonal self-locking nut 23 and the pressing plate 18.
In this embodiment, the control board in the oxygen control box 4 is also connected to a display system 19 in the aircraft via signal lines.
The novel oxygen supply device for passengers in long voyage has the following function realization modes:
the automatic control function is realized in the following way: the oxygen control box 4 in the oxygen supply device consists of a height annunciator, a control panel and the like which are all integrated in the shell. The internal height annunciator judges whether oxygen needs to be supplied to passengers or not by detecting the pressure in the aircraft cabin, and once the internal height annunciator reaches the specified value of the oxygen to be supplied, the oxygen control box 4 can automatically control according to the program of the rule, so that the box cover of the oxygen supply unit is opened, the mask falls off, and the oxygen is supplied for the passengers to breathe.
The system self-checking function is realized in the following mode: when the system is started to be powered on, the control board in the oxygen control box 4 in the oxygen supply device can automatically detect that the state of the system is normal enough, and can upload the detection result to a superior system according to a specified code, and the superior system displays the product state.
The realization mode of the temperature and pressure signal receiving, converting and transmitting function is as follows: the control board inside the oxygen control box 4 in the oxygen supply device can automatically convert the temperature and pressure signals transmitted from the upper system into pressure signals under the standard state, and transmit the pressure signal information to the upper system according to the specified requirements for pressure display.
The manual control function is realized in the following mode: the storage box component 3 in the oxygen supply device is internally provided with a manually controlled button switch 16, when the button switch 16 is pressed, an electric control lock 21 in the oxygen control box 4 can be used for obtaining a control signal, and then the box cover of the oxygen supply unit component is controlled to be opened, so that the mask falls off, and oxygen is supplied for passengers to breathe.
The mechanical control function is realized by the following steps: the mechanical control function is realized by the control button on the oxygen supply unit box, and when the button is pressed, the electric control lock 21 in the oxygen supply unit box can be opened, so that the oxygen mask falls.
The flow regulation distribution function is realized in the following mode: the oxygen supply unit is integrated with a flow regulator, a flow distributor, an oxygen mask and the like, so that the quantitative distribution of oxygen can be realized.
The test function implementation mode is as follows: whether can normally open for the electric control lock 21 of test oxygen suppliment unit, can press the manual button switch 16 in the storage box subassembly 3, can open after the circular telegram of oxygen suppliment unit lid, for avoiding when functional test, the oxygen mask drops and increases the maintenance volume, can be in the test position with the test button. The slot of this button bottom can block on the box subassembly when the lid is opened this moment, makes the lid only open a small-angle, prevents that the oxygen mask from freely dropping, and the back that finishes the test resets oxygen suppliment unit and test button can.
The principle and the implementation mode of the invention are explained by applying a specific embodiment, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.
Claims (6)
1. The utility model provides a novel passenger oxygen suppliment during long voyage device which characterized in that: comprises an oxygen supply unit I, an oxygen supply unit II, a storage box component, an oxygen control box and a pressure reducer component;
one end of the pressure reducer assembly is connected with an airplane oxygen source through an oxygen pipeline, the other end of the pressure reducer assembly is connected with one of the joints on the four-way pipe joint through the oxygen pipeline, and the other three joints on the four-way pipe joint are respectively connected with the two oxygen supply units I and the two oxygen supply units II through the oxygen pipeline to form a whole oxygen conveying loop;
the oxygen control box, the oxygen supply unit I, the oxygen supply unit II and the storage box assembly are connected together in a cross-linking mode through conducting wires to form an electric control whole loop; the oxygen control box is internally provided with a pressure sensor and a control panel, is crosslinked with a temperature and pressure sensor and a display system on an oxygen source of the airplane through a temperature and pressure signal line, can receive a temperature and pressure signal transmitted by the temperature and pressure sensor, converts the received temperature and pressure signal into a pressure signal with a specified format and transmits the pressure signal to the display system of the airplane, and simultaneously transmits a self-detection signal to the display system of the airplane; the storage box assembly contains a control button, and the storage box assembly and the oxygen control box are both connected with an aircraft power supply through wires;
the utility model discloses a flow control box, including oxygen suppliment unit one, oxygen suppliment unit two, oxygen suppliment unit one and oxygen suppliment unit two all includes oxygen box subassembly, expansion area, face guard subassembly, flow control distributor and electric control lock, wherein oxygen box subassembly includes box body and lid, the electric control lock passes through screw connection on the box body, it is opened to lid accessible electric control lock control, the electric control lock with pass through the wire with the control panel in the oxygen control box and connect, the face guard subassembly accomodate in the box body, place and expand and take the top, it connects to expand the area on the box body, flow control distributor unit mount in the box body.
2. The novel long endurance passenger oxygen supply apparatus of claim 1, wherein: the first oxygen supply unit and the second oxygen supply unit are fixed on the airplane framework above the passenger seat through screws.
3. The novel long endurance passenger oxygen supply apparatus of claim 1, wherein: the storage box assembly, the oxygen control box and the pressure reducer assembly are all fixed on the airplane framework through screws.
4. The novel long endurance passenger oxygen supply apparatus of claim 1, wherein: the pressure reducer subassembly include the pressure reducer and set up in the pressure reducer support of pressure reducer bottom, the pressure reducer support passes through the fix with screw on the aircraft skeleton.
5. The novel long endurance passenger oxygen supply apparatus of claim 1, wherein: storage box subassembly includes safety cover, storage box, clamp plate, hexagonal self-locking nut, pressure spring, cylinder head hexagon socket head cap screw, extension spring, rotation axis, extension spring peg, button switch, the safety cover pass through the rotation axis install in on the storage box, can wind the rotation axis is rotatory, extension spring one end is connected on the storage box, the other end passes through the extension spring peg is installed on the safety cover, button switch install in the safety cover, the storage box passes through cylinder head hexagon screw the pressure spring hexagon self-locking nut the clamp plate combined action is fixed on aircraft framework.
6. The novel long endurance passenger oxygen supply apparatus of claim 1, wherein: the control panel in the oxygen control box is also connected with a display system in the airplane through a signal wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110860710.1A CN113562181B (en) | 2021-07-29 | 2021-07-29 | Novel long-endurance passenger oxygen supply device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110860710.1A CN113562181B (en) | 2021-07-29 | 2021-07-29 | Novel long-endurance passenger oxygen supply device |
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| Publication Number | Publication Date |
|---|---|
| CN113562181A CN113562181A (en) | 2021-10-29 |
| CN113562181B true CN113562181B (en) | 2023-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110860710.1A Active CN113562181B (en) | 2021-07-29 | 2021-07-29 | Novel long-endurance passenger oxygen supply device |
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| CN114326528B (en) * | 2021-12-31 | 2024-06-11 | 成都康拓兴业科技有限责任公司 | Control method of airborne oxygen concentrator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2486958B1 (en) * | 2011-02-10 | 2016-07-13 | Zodiac Aerotechnics | Passenger cabin emergency oxygen device |
| US20140000589A1 (en) * | 2012-06-28 | 2014-01-02 | Marco Hollm | Emergency oxygen device with improved activation lanyard arrangement |
| DE102017130749B4 (en) * | 2017-12-20 | 2022-02-17 | Airbus Operations Gmbh | System for supplying oxygen to oxygen masks in an aircraft |
| US11338158B2 (en) * | 2018-03-15 | 2022-05-24 | Safran Aerotechnics Sas | System and a method for delivering breathing gas to passengers on-board an aircraft |
| CA3040714A1 (en) * | 2018-04-18 | 2019-10-18 | Zodiac Aerotechnics | An emergency oxygen system for aircraft with switching device and a method of operating an emergency oxygen system |
| CN111792038A (en) * | 2020-06-30 | 2020-10-20 | 中航大（天津）模拟机工程技术有限公司 | Emergency oxygen supply device based on condition that boeing aircraft windshield drops |
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