Airplane oxygen generation and distribution system

By separating ram air on the aircraft to generate oxygen-enriched gas and storing it in oxygen cylinders, the problem of traditional aircraft oxygen systems being unable to supply oxygen for extended periods is solved, enabling continuous oxygen supply, reducing ground maintenance, and lowering maintenance costs.

CN224349130UActive Publication Date: 2026-06-12COMMERCIAL AIRCRAFT CORP OF CHINA LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
COMMERCIAL AIRCRAFT CORP OF CHINA LTD
Filing Date
2025-05-13
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

Traditional aircraft oxygen systems rely on ground-based oxygen supply, which cannot provide oxygen for extended periods and requires frequent ground maintenance, increasing operating costs.

⚗Method used

An air separator is used to separate oxygen and nitrogen from ram air, generating oxygen-enriched gas which is stored in oxygen cylinders. Ram air is used to continuously supply oxygen during flight, and sensors monitor and control the pressure and temperature to ensure a stable oxygen supply.

🎯Benefits of technology

This reduced ground maintenance work, enabled continuous oxygen supply during flight, and lowered maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of aircraft oxygen preparation and distribution systems, which can reduce maintenance work on ground, and can continuously oxygenate and provide oxygen to cabin occupants during flight phase. The aircraft oxygen preparation and distribution system comprises: an air separator, which separates oxygen and nitrogen in ram air to form oxygen-rich gas with higher oxygen concentration than that in the ram air and nitrogen-rich gas with higher nitrogen concentration than that in the ram air; and an oxygen cylinder, which is connected to the air separator. The oxygen-rich gas formed in the air separator is supplied to the oxygen cylinder for storage. When the aircraft has oxygen demand, the oxygen-rich gas in the oxygen cylinder is distributed to the cockpit and passenger cabin of the aircraft.
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