Aircraft air conditioner
AssigneeShimadzu Corporation
InventorsHisashi Mitani, Hidefumi Saito
Life of this patent
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Abstract
An aircraft air conditioner uses a cooling device to cool air extracted from an engine before feeding it into a cabin. This extracted air is mixed with recirculation air that is returned to the cabin after flowing out from the cabin. The mixture of the recirculation air and the extracted air is fed into an air separating section. This air separating section has a selectively permeable membrane that separates the air flowing through an air flow path of the air conditioner into nitrogen-enriched gas and oxygen-concentrated air. The nitrogen-enriched gas is capable of being fed into a fuel peripheral region of the aircraft, and the oxygen-concentrated air is capable of being fed into the cabin.
Claims15
An aircraft air conditioner wherein air extracted from an engine is cooled by a cooling device and fed into the cabin of the aircraft, comprising:
- an air separating section having a selectively permeable membrane arranged at a position through which air flowing in an air flow path of the air conditioner passes, so that it separates the air into nitrogen-enriched gas and oxygen-concentrated air,
- wherein the nitrogen-enriched gas is fed into a fuel peripheral region of the aircraft, and the oxygen-concentrated air can be fed into the cabin;
- the cooling device comprises a compressor and an expansion turbine, and
- the extracted air is fed into the air separating section after being compressed by the compressor.
An aircraft air conditioner wherein air extracted from an engine is cooled by a cooling device and fed into the cabin of the aircraft, comprising:
- an air separating section having a selectively permeable membrane arranged at a position through which air flowing in an air flow path of the air conditioner passes, so that it separates the air into nitrogen-enriched gas and oxygen-concentrated air, wherein the nitrogen-enriched gas can be fed into a fuel peripheral region of the aircraft, and the oxygen-concentrated air can be fed into the cabin,
- a recirculation air flow path through which air flowing out from the cabin is returned to the cabin, wherein the recirculation air flow path and the air flow path for the extracted air from the engine are connected to each other such that recirculation air that is returned to the cabin after flowing out from the cabin is mixed with the extracted air, and
- the mixture of the recirculation air and the extracted air is fed into the air separating section, wherein the cooling device comprises a compressor and an expansion turbine;
- and the mixture of the recirculation air and the extracted air is fed into the air separating section after being compressed by the compressor of the cooling device.
Dependencies are inferred from the claim text.