Described herein are noise attenuating ducts and vehicles using these ducts for environmental control systems. A duct comprises an exoskeleton structure and a sound-absorbing structure, disposed within and conforming to the exoskeleton structure. The exoskeleton structure provides external mechanical support to the sound-absorbing structure thereby helping to maintain the tubular shape of the sound-absorbing structure. This external support does not interfere with the airflow inside the sound-absorbing structure. Furthermore, the external positioning of the exoskeleton structure allows the integration of various support mounting features for the installation of the duct in a vehicle. In some examples, the exoskeleton structure comprises a plurality of enclosed openings to reduce the weight of the exoskeleton structure and provide additional flexibility. Furthermore, additive manufacturing of the exoskeleton structure allows achieving a monolithic structure with various features and characteristics described above.


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    Titel :

    DUCTS COMPRISING EXOSKELETON AND SOUND-ABSORBING STRUCTURES AND VEHICLES USING SUCH DUCTS


    Beteiligte:
    VANDYKE BRYCE A (Autor:in) / MABEN DOUGLAS D (Autor:in) / HASTINGS DALE (Autor:in) / GMEREK MARK M (Autor:in) / HAN XIN (Autor:in)

    Erscheinungsdatum :

    2023-01-12


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    F16L PIPES , Rohre / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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    VANDYKE BRYCE A / MABEN DOUGLAS D / HASTINGS DALE et al. | Europäisches Patentamt | 2023

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    DUCTS COMPRISING EXOSKELETON AND SOUND-ABSORBING STRUCTURES AND VEHICLES USING SUCH DUCTS

    VANDYKE BRYCE A / MABEN DOUGLAS D / HASTINGS DALE et al. | Europäisches Patentamt | 2023

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    Underwater sound propagation in surface ducts

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