System and method for enriching aircraft cabin air with oxygen from a nitrogen generation system
AssigneeThe Boeing Company
InventorKyle Eilers
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Abstract
An aircraft cabin air treatment system configured in accordance with the invention utilizes oxygen enriched air, which is produced as a byproduct of an onboard inert gas generation system. The oxygen enriched air is released into an environment under ambient pressure conditions, i.e., at a relatively low absolute pressure compared to the cabin pressure. The low pressure oxygen enriched air is compressed with a cabin air compressor, and the outside air is routed back into the cabin. The cabin air compressor functions to generate oxygen enriched outside air and to maintain the desired pressurization of the cabin.
Claims20
A method for processing cabin air of an aircraft having a cabin, said method comprising:
- obtaining used cabin air at a relatively high absolute pressure at an input of an onboard inert gas generation system (“OBIGGS”)
- generating, with said OBIGGS, oxygen enriched air;
- providing, at a relatively low absolute pressure, said oxygen enriched air to an intake of a cabin air compressor;
- and generating, with said cabin air compressor, outside air at a relatively high absolute pressure, said outside air including said oxygen enriched air.
A method for processing cabin air of an aircraft having a cabin, said method comprising:
- treating used cabin air with an onboard inert gas generation system (“OBIGGS”) to generate oxygen enriched air;
- routing said oxygen enriched air to a cabin air compressor;
- and
- compressing, with said cabin air compressor, at least said oxygen enriched air to generate outside air.
A system for processing cabin air of an aircraft having a cabin, said system comprising:
- an onboard inert gas generation system (“OBIGGS”) configured to generate oxygen enriched air from used cabin air;
- a cabin air compressor configured to compress at least said oxygen enriched air to generate outside air;
- means for routing said oxygen enriched air to said cabin air compressor;
- and
- means for delivering said outside air to the cabin.
Dependencies are inferred from the claim text.