An outboard motor comprises an engine having an exhaust gas discharge opening, a midsection housing coupled below and supporting the engine, and an exhaust pipe having an exhaust inlet in fluid communication with the exhaust gas discharge opening. The exhaust pipe extends downwardly to a primary exhaust outlet. An idle relief port in the exhaust pipe is located in a fluid path between the exhaust inlet and the primary exhaust outlet. A sound-attenuating plenum chamber has an interior that is in fluid communication with an interior of the exhaust pipe by way of the idle relief port. The plenum chamber is a separate component that is exterior to the midsection housing, and exhaust gas flows from the interior of the exhaust pipe to the interior of the plenum chamber without first flowing through the midsection housing.


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    Titel :

    Exhaust gas idle relief system for an outboard motor


    Beteiligte:

    Erscheinungsdatum :

    2016-06-28


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein



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