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W?rtsil? 46F

Best-in-class fuel economy & outstanding power-to-weight as well as power-to-space ratios

The technologically advanced Wärtsilä 46F can be run on either heavy fuel oil (HFO), marine diesel oil (MDO), or on light diesel when being operated within strict coastal or port emissions areas. This fuel switching can take place smoothly and without power interruption across all engine loads.

This flexibility enables the operator to select the fuel according to price, availability, and the need to meet local emissions regulations.

The Wärtsilä 46F engine is fully compliant with the IMO Tier II exhaust emissions regulations set out in Annex VI of the MARPOL 73/78 convention.

    Technical Data
    Wärtsilä 46F IMO Tier II or III
    Cylinder bore 460 mm Fuel specification:
    Piston stroke 580 mm Fuel oil 700 cSt/50oC
    Cylinder output 1200 kW/cyl 7200 sR1/1000 F
    Speed 600rpm ISO 8217, category ISO-F-RMK 700
    Mean effective pressure 24.9 bar L engine SFOC 176 g/kWh at ISO condition
    Piston speed 11.6m/s V engine SFOC 175 g/kWh at ISO condition
    Option:Lubricating oil module integrated on engine.

    Dimensions (mm) and weights (tonnes)
    Engine type A* A B C D F Weight
    6L46F 8470 8620 3500 2930 4350 1430 97
    7L46F 9435 9440 3800 2950 4350 1430 113
    8L46F 10255 10260 3800 2950 4350 1430 124
    9L46F 11075 11080 3800 2950 4350 1430 140
    12V46F 10945 10284 3770 4050 3800 1620 177
    14V46F 12256 11728 4243 4678 3800 1620 216
    16V46F 13306 12871 4243 4678 3800 1620 233


    Rated power
    Engine type kW
    6L46F 7 200
    7L46F 8 400
    8L46F 9 600
    9L46F 10 800
    12V46F 14 400
    14V46F 16 800
    16V46F 19 200

    Press releases


    IMO Tier III and Beyond

    Some years ago, with the end of the W?rtsil? 46 product cycle in sight, W?rtsil? decided to upgrade the engine design.
    28 May 2012
    • Twentyfour7. article

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