Process and installation for the distribution of air enriched in oxygen to passengers of an aircraft

An oxygen-enriched air, aircraft passenger technology, applied in aircraft parts, separation methods, transportation and packaging, etc., can solve problems such as increasing aircraft weight, and achieve the effect of reducing fuel capacity, ensuring weight, and reducing weight

Inactive Publication Date: 2004-11-24
液体空气股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it's easy to realize that carrying extra fuel adds significantly to the weight of the aircraft

Method used

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  • Process and installation for the distribution of air enriched in oxygen to passengers of an aircraft
  • Process and installation for the distribution of air enriched in oxygen to passengers of an aircraft

Examples

Experimental program
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Embodiment Construction

[0017] The distribution unit shown in the figure comprises an oxygen separator or concentrator of a known type generally indicated by reference numeral 2 . The concentrator which separates the oxygen and nitrogen contained in the air generally uses molecular sieves known per se, especially zeolites. As output, the concentrator delivers oxygen-enriched air with an oxygen concentration advantageously between 60% and 95%, typically between 80% and 93%, at low pressure, usually between 1.5 and 2.5 bar relative pressure between.

[0018] The concentrator 2 is connected via a line 4 provided with a filter 6 to a compressed air source 7 inside the aircraft. This gas source is formed, for example, by the air conditioning cycle of an aircraft, or by the outflow (gas) of the compression stage of a jet engine.

[0019] The illustrated concentrator 2 comprises an outlet line 8 from which nitrogen-enriched air flows and a line 10 in which oxygen-enriched air flows. Said line 10 is provi...

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PUM

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Abstract

According to this process, there is supplied to the passengers a first fraction of air enriched in oxygen from independent supply elements, in particular high pressure cylinders (16), during a descent phase of the aircraft between a normal cruising altitude and an intermediate rerouting altitude. There is moreover compressed air taken from a source of compressed air belonging to the aircraft, to produce (in 2) a second fraction of the air enriched in oxygen which is delivered to the passengers, at least during a phase of stabilized flight of the aircraft, adjacent the re-routing altitude, greater than 5,500 meters.

Description

technical field [0001] The present invention relates to a method and a device for dispensing oxygen-enriched air to passengers of an aircraft, especially a commercial airliner. Background technique [0002] At high altitudes, when an unexpected cabin depressurization occurs in an aircraft, the occupants (passengers and crew) must rapidly inhale oxygen-enriched air to avoid hypoxia due to a sudden decrease in oxygen partial pressure. [0003] For this purpose, it is known to provide separate means for delivering oxygen-enriched air. These devices may be high pressure cylinders filled with pure oxygen. Alternatively, pure oxygen can be produced by a chemical oxygen generator. [0004] Oxygen is dispensed to the passenger from the delivery device through the mask. The mask allows the oxygen dispensed to the passenger to mix with the surrounding air. The dosing stops when the aircraft returns to a low flight altitude of around 3000 meters, which can be reached in about 15 mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M15/00A61M16/00A62B7/14B01D53/04B01D53/047B64D11/00B64D13/00
CPCB01D2259/4533B64D2231/02B01D2257/102A62B7/14B01D2259/4575B01D2256/12Y02T50/46Y02T50/44B01D53/0446B64D13/00B64D11/00Y02T50/56B01D2253/108B01D53/047Y02T50/50Y02T50/40
Inventor J-M·卡泽纳夫J·德艾O·万德胡R·扎帕塔
Owner 液体空气股份有限公司
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