The present invention relates to a noise reduction structure for an air circulation duct including an upper duct which forms an upper wall and both side walls of a duct and in which an opening is formed to face downward, a lower duct detachably mounted on the opening of the upper duct and forming a lower wall of a flow path, a plurality of central splitters mounted apart from each other in a longitudinal direction of the flow path in which air flows, a front splitter disposed in front of the central splitters, and a rear splitter disposed on an upper surface of the lower duct to be disposed behind the central splitters.


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    Title :

    Noise Reduction Structure For Air Circulation Duct


    Contributors:
    NOH HEE MIN (author)

    Publication date :

    2025-07-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / 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



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