A system and method onboard an aircraft includes a ram air temperature sensor, a bleed air temperature sensor, a valve, and a controller. The ram air temperature sensor is positioned to sense a ram air temperature of a ram air flow. The bleed air temperature sensor is positioned to sense a bleed air temperature of a bleed air flow, wherein the bleed air flow is cooled by a heat exchanger using the ram air flow. The valve is configured to control the bleed air flow upstream of the heat exchanger. The controller is configured to determine a bleed air threshold based on the ram air temperature, and control the valve to reduce the bleed air flow in response to the bleed air temperature reaching the bleed air threshold.


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    Titel :

    HEAT EXCHANGER BLOCKAGE DETECTION TO PREVENT RAM AIR FAN SURGE


    Beteiligte:
    VALIQUETTE PATRICK (Autor:in) / KLINE ERIN G (Autor:in) / MCAULIFFE CHRISTOPHER (Autor:in) / ZYWIAK THOMAS M (Autor:in) / JOYCE JAMES (Autor:in) / KODET LAUREN (Autor:in)

    Erscheinungsdatum :

    19.09.2019


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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