Hybrid generation of oxygen for airplane passengers on board
An oxygen and aircraft technology, applied in the system field of crew and passengers, can solve the problem of oxygen not being available immediately, and achieve the effect of low cost and avoiding hypoxia
Active Publication Date: 2016-09-07
BE AEROSPACE INCORPORATED
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- Description
- Claims
- Application Information
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Problems solved by technology
While this process produces a substantially pure oxygen product under pressure that is suitable for breathing at any altitude, including higher altitudes in excess of 30,000 feet, the oxygen is not immediately available when the device is powered on because the device needs to first reach the desired operating temperature
[0014] While ceramic oxygen generator devices are generally superior to molecular sieve oxygen generator devices based on their ability to provide a more pure or highly concentrated oxygen-enriched gas suitable for breathing under pressure, due to the high temperature requirements necessary to generate oxygen from such devices , the oxygen from the ceramic oxygen generator equipment is also not immediately available
Method used
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[0036] Detailed Description of Preferred Embodiments
[0037] Ceramic Oxygen Generator (COG) systems utilize Solid Electrolyte Oxygen Separation (SEOS) technology, in which oxygen is catalytically separated from air within a specialized ceramic material using an electrical voltage at elevated temperatures of approximately 650°C to 750°C. While this process produces a substantially pure oxygen product that is under pressure and is breathable at any altitude including higher altitudes above 30,000 feet, the disadvantage is that oxygen is not immediately available when power is applied to the device because the device must first reach required high operating temperatures. Due to the high operating temperature requirements, there is often a time lag before the full oxygen capacity from the ceramic oxygen generator or solid electrolyte oxygen separator is fully utilized.
[0038] Provided herein are hybrid systems and methods for generating, supplying and maintaining adequate oxyg...
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Provided herein is a hybrid system (100) for generating oxygen on¬ board an aircraft for passengers and / or flight crew to breath. The system includes a first chemical oxygen generator component (112) configured to promptly supply oxygen suitable for breathing upon an emergency situation arising and during an initial descent mode. Heat produced from the exothermic decomposition reactions inherent in several types of chemical oxygen generators is harvested and feed to a second oxygen generator (114). The second oxygen generator is a solid electrolyte oxygen separation system that catalytically separates oxygen from air inside specialized ceramic materials at high temperatures, about 650 °C to 750 °C, using electrical voltage. The ability to feed heat from the first oxygen generator to the second oxygen generator substantially reduces the lag time until the second ceramic oxygen generator is available to take over as the oxygen supply.
Description
technical field [0001] background [0002] The present invention generally relates to a system and method for providing an adjustable flow of oxygen to, and including the crew and passengers of, an aircraft. The present invention more particularly relates to a system and method for ensuring that breathable oxygen is immediately and intermittently available to the crew and passengers of an aircraft, including during the descent of the aircraft. Components of the system include an oxygen generator and a heat exchanger interface that transfers heat from the exothermic decomposition reaction in the first oxygen generator to a heat-dependent second oxygen generator. Background technique [0003] Conventional systems and methods for supplying oxygen to aircraft passengers typically rely on gaseous oxygen either chemically generated by a Passenger Service Unit (PSU) located above the passenger seat, or by added oxygen. Cylinder distribution, usually through a centralized distribu...
Claims
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IPC IPC(8): B64D13/00
CPCB64D13/00Y02T50/40Y02T50/50
Inventor G·S·克萨格D·德根哈特
Owner BE AEROSPACE INCORPORATED