Desribed 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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    Title :

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


    Additional title:

    KANÄLE MIT EXOSKELETTSTRUKTUREN UND SCHALLABSORBIERENDEN STRUKTUREN UND FAHRZEUGE MIT SOLCHEN KANÄLEN
    CONDUITS COMPRENANT DES STRUCTURES D'EXOSQUELETTE ET INSONORISANTES ET VÉHICULES UTILISANT CES CONDUITS


    Contributors:
    VANDYKE BRYCE A (author) / MABEN DOUGLAS D (author) / HASTINGS DALE (author) / GMEREK MARK M (author) / HAN XIN (author)

    Publication date :

    2023-01-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / B22F Verarbeiten von Metallpulver , WORKING METALLIC POWDER / F16L PIPES , Rohre / F24F Klimatisierung , AIR-CONDITIONING / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



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