A stern drive is for propelling a marine vessel in water. The stern drive is configured to power a propulsor located below the surface of the water. The stern drive comprises an internal combustion engine that powers a driveshaft that axially extends through a transom of the marine vessel; an exhaust manifold that conveys exhaust gas from the internal combustion engine; and an elongated exhaust conduit that redirects the exhaust gas from the exhaust manifold transversely with respect to the driveshaft. The elongated exhaust conduit conveys the exhaust gas to an upstream exhaust outlet that discharges the exhaust gas through the transom below the surface of the water and then to a downstream exhaust outlet that is spaced apart from and is located vertically higher than the upstream exhaust outlet. The elongated exhaust conduit functions as a water lift muffler during operation of the stern drive.


    Access

    Download


    Export, share and cite



    Title :

    Stern drives and water lift exhaust systems for stern drives


    Contributors:

    Publication date :

    2017-08-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    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



    Stern drives and flywheel housings for stern drives

    GROESCHEL JOHN A / WALDVOGEL DAVID J | European Patent Office | 2016

    Free access

    STERN DRIVES AND METHODS OF INSTALLING STERN DRIVES

    WAISANEN ANDREW S / BELTER DAVID J / GROESCHEL JOHN A et al. | European Patent Office | 2023

    Free access

    ELECTRIC STERN DRIVES

    BELTER DAVID J / GROESCHEL JOHN A | European Patent Office | 2024

    Free access

    Stern drives and transom bracket assemblies for stern drives providing vibration isolation

    GROESCHEL JOHN A / DHARMADHIKARI CHETAN AVINASH | European Patent Office | 2025

    Free access

    STERN DRIVES AND TRANSOM BRACKET ASSEMBLIES FOR STERN DRIVES PROVIDING VIBRATION ISOLATION

    GROESCHEL JOHN A / DHARMADHIKARI CHETAN AVINASH | European Patent Office | 2023

    Free access