A respiratory gas supply circuit to feed crew members and...

A - Human Necessities – 62 – B

Patent

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Details

A62B 7/14 (2006.01) A62B 7/04 (2006.01) A62B 9/02 (2006.01)

Patent

CA 2657466

The invention relates to a respiratory gas supply circuit (1) for an aircraft carrying passengers and crewmembers (30), comprising a source of breathable gas (R1 , R2), at least one supply line (2) connected to said pressurized source, a regulating device (12) provided on said supply line for controlling the supply of breathable gas, a mixing device (9) provided on said supply 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 said breathable gas and ambient air, wherein said regulating device is driven by a control signal (F1O2 R) function at least of the breathable gas content (F1O2) in said respiratory gas.

La présente invention concerne un circuit d'alimentation en gaz respiratoire (1) pour un avion transportant passagers et membres d'équipage (30) constitué d'une source de gaz respiratoire (R1 , R2), d'au moins une conduite d'alimentation (2) reliée à ladite source pressurisée, d'un dispositif de régulation (12) situé sur ladite conduite d'alimentation et destiné à contrôler l'alimentation en gaz respiratoire, d'un mélangeur (9) situé également sur ladite conduite d'alimentation, lequel mélangeur est doté d'une entrée d'air ambiant (10) pour mélanger ledit air ambiant audit gaz respiratoire afin de fournir à au moins un passager ou membre d'équipage un gaz respiratoire correspondant à un mélange de gaz respiratoire et d'air ambiant, ledit régulateur étant actionné par au moins une fonction de commande (F1O2 R) de la partie de gaz respiratoire (F1O2) contenu dans ledit gaz respiratoire.

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