An environmental control system, comprising, a first environmental control system pack (20) having a first inlet (40) that receives a first fluid flow from a first air source (50) and a first outlet (48), a first recirculation fan assembly (22) having a first recirculation inlet that receives a first cabin air fluid flow from an aircraft cabin and a first recirculation outlet; and a cabin air sensor unit (30) in fluid communication with the first recirculation outlet, the cabin air sensor unit being arranged to provide a first air quality signal indicative of an air quality of the first cabin air fluid flow to a controller (32); wherein the controller is in communication with the first environmental control system pack, wherein the first outlet provides the first fluid flow to a mixing manifold (28), and wherein the first recirculation outlet provides the first cabin air fluid flow to the mixing manifold; the environmental control system further comprises a second environmental control system pack (24) having a second inlet (80) that receives a second fluid flow from a second air source (90) and a second outlet (88) that provides the second fluid flow to the mixing manifold, and a second recirculation fan assembly (26) having a second recirculation inlet (110) that receives a second cabin air fluid flow from the aircraft cabin (12) and a second recirculation outlet (112) that provides the second cabin air fluid flow to the mixing manifold, wherein the cabin air sensor unit is in fluid communication with the second recirculation outlet; characterized in that the cabin air sensor unit is arranged to provide a second air quality signal indicative of an air quality of the second cabin air fluid flow to the controller, and wherein: the mixing manifold (28) mixes the first fluid flow with the first cabin air fluid flow from the first recirculation fan assembly (22) and also mixes the second fluid flow with the second cabin air fluid flow, and the mixing manifold (28) provides the mixed fluid flows to the cabin (12); when generating the first and second air quality signals, the cabin air sensor unit (30) is in communication with the controller (32) to quantify the concentration level or particle count of impurities/contaminants or determine a level of air quality of the first fluid flow, the first cabin air fluid flow, the second fluid flow, and the second cabin air fluid flow prior to delivery to the cabin (12); and the controller (32) is programmed to, responsive to at least one of the first air quality signal or the second air quality signal being indicative of an air quality less than a threshold, inhibit the fluid flow from the first outlet (48) of the first environmental control system pack (20) or the second outlet (88) of the second environmental control system pack (24).


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    Titel :

    AIRCRAFT CABIN AIR MONITOR


    Weitere Titelangaben:

    LUFTÜBERWACHUNGSYSTEM FÜR FLUGZEUGKABINE
    CONTROLLEUR D'AIR POUR CABINE D'AERONEF


    Beteiligte:
    BARTOSZ LANCE R (Autor:in) / THIBAUD CATHERINE (Autor:in) / MANTESE JOSEPH V (Autor:in) / ST ROCK BRIAN (Autor:in)

    Erscheinungsdatum :

    2024-03-13


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / B01D SEPARATION , Trennen



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