Patent ID: 8636003

Claim:
An oxygen supply system for generating oxygen-enriched air out of cabin air in an aircraft, comprising: a modular cabin unit with an oxygen port, the modular cabin unit selected from the group comprising a toilet module, a service facility and a door element; and a decentralized emergency oxygen supply unit with an oxygen outlet, wherein the decentralized emergency oxygen supply unit is set up in the modular cabin unit and includes a sensor element, wherein the decentralized emergency oxygen supply unit comprises an oxygen generation device, which is set up to generate oxygen-enriched air from the cabin air via electrical power using an electrolysis process or a molecular sieve after completion of a startup phase and the sensor element measures the oxygen-enriched air generated by the oxygen generation device to detect a contamination of the oxygen-enriched air, wherein the decentralized emergency oxygen supply unit further comprises a chemical oxygen generation starter system that quickly provides oxygen-enriched air only until the oxygen generation device has finished the startup phase, and wherein the oxygen-enriched air is provided at the oxygen outlet of the modular cabin unit via the oxygen outlet.