An aircraft emergency oxygen supply system comprises a passenger oxygen mask for supplying oxygen to a passenger wearing the passenger oxygen mask; an oxygen source for supplying oxygen to the passenger oxygen mask; a breath sensor for detecting breaths of the passenger wearing the passenger oxygen mask; and a controller for controlling the supply of oxygen from the oxygen source to the passenger oxygen mask. The controller is configured for operating in a normal breathing mode, which includes supplying a normal breathing amount of oxygen (VN) from the oxygen source to the passenger oxygen mask at every breath of the passenger wearing the passenger oxygen mask; deriving a breathing frequency indicator from a plurality of successive breaths of the passenger; and switching into a fast or into a low breathing mode if the breathing frequency indicator indicates a breathing frequency above or below predefined frequency thresholds.


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    Title :

    AIRCRAFT EMERGENCY OXYGEN SUPPLY SYSTEM, AIRCRAFT COMPRISING SUCH AN EMERGENCY OXYGEN SUPPLY SYSTEM, AND METHOD OF OPERATING AN AIRCRAFT EMERGENCY OXYGEN SUPPLY SYSTEM


    Contributors:

    Publication date :

    2024-02-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    A62B DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING , Vorrichtungen, Geräte oder Verfahren zur Lebensrettung / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT