A piston for an internal combustion engine is provided. The piston includes a piston body including an upper combustion surface, an annular side wall with a ring belt region, and a cooling gallery located within the piston body having a fluid inlet. A piston ring is located in a ring groove around the ring belt region and an alignment pin is secured in a hole in the piston side wall to restrict circumferential displacement of the piston ring. The piston body further includes a boss within the cooling gallery into which the hole and the alignment pin extend. The boss projects into the cooling gallery opposite the fluid inlet and is shaped to provide a flow splitter surface configured to divide cooling fluid flowing through the fluid inlet during use into first and second fluid flows and to direct the first and second fluid flows in opposite directions around the cooling gallery.


    Access

    Download


    Export, share and cite



    Title :

    Marine outboard motor with piston cooling gallery


    Contributors:

    Publication date :

    2020-12-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F02F CYLINDERS, PISTONS, OR CASINGS FOR COMBUSTION ENGINES , Zylinder, Kolben oder Gehäuse für Brennkraftmaschinen / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung / F16J Kolben , PISTONS



    MARINE OUTBOARD MOTOR WITH PISTON COOLING GALLERY

    MICHELE MILANI / ARUN DHANAPALA | European Patent Office | 2024

    Free access


    MARINE OUTBOARD MOTOR WITH DRIVE SHAFT AND COOLING SYSTEM

    BARRATT JAMES | European Patent Office | 2020

    Free access

    Marine outboard motor with drive shaft and cooling system

    BARRATT JAMES | European Patent Office | 2022

    Free access

    Marine outboard motor tether

    GROHLER ROY JOHN | European Patent Office | 2019

    Free access