A boat propulsion device is configured to be attachable to a vessel body including an external tank. The boat propulsion device includes an engine, an exhaust pipe, a catalyst, an internal tank, a detection unit and a control unit. The exhaust pipe is connected to the engine. The catalyst is disposed in the exhaust pipe. The internal tank communicates with the external tank. The internal tank is configured to store a fuel to be supplied to the engine. The detection unit is configured to detect whether or not an amount of fuel remaining within the internal tank is less than or equal to a predetermined remaining amount. The control unit is configured or programmed to perform a rotation speed reduction control to reduce a rotation speed of the engine when the detection unit has detected that the amount of fuel remaining within the internal tank had become less than or equal to the predetermined remaining amount. The predetermined remaining amount is an amount of fuel necessary to drive the engine until a temperature of the catalyst becomes lower than an ignition temperature of the fuel under the rotation speed reduction control.


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    Titel :

    Boat propulsion device and float position determining method


    Beteiligte:

    Erscheinungsdatum :

    16.08.2016


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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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