| 摘要 |
The invention relates to a respiratory gas supply circuit (1) for an airc raft carrying passengers and crewmembers (30), comprising a source of breath able gas (R1 , R2), at least one supply line (2) connected to said pressuriz ed source, a regulating device (12) provided on said supply line for control ling the supply of breathable gas, a mixing device (9) provided on said supp ly line, said mixing device further comprising an ambient air inlet (10) for mixing said ambient air with said breathable gas to provide to at least one passenger or crewmember a respiratory gas corresponding to a mixture of sai d breathable gas and ambient air, wherein said regulating device is driven b y a control signal (F1O2 R) function at least of the breathable gas content (F1O2) in said respiratory gas.
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