The Largest And Most Powerful Diesel Engine in The World



Container ships are some of the largest and heaviest vessels that plough on the seas. They measure up to 1,200 feet in length and can move 10,000 to 16,000, 20-foot steel containers in one trip. To push these vessels through the water require immense amount of energy, that are derived from massive diesel engines. Some of the larger cargo ships have engines that look like this.


This is RT-flex96C - a two-stroke turbocharged diesel engine designed by the Finnish manufacturer Wärtsilä and is currently the largest and most powerful diesel engine in the world. Standing at 13.5 meters high and 26.59 meters long, it is almost as big as a small apartment. It weighs over 2,300 tonnes and its largest 14-cylinder version produces 80,080 kW of power.

The 14-cylinder version was put into service in September 2006 aboard the Emma Mærsk, a container ship – the largest at that time. The design is based on the older RTA96C engine, but revolutionary common rail technology has done away with the traditional camshaft, chain gear, fuel pumps and hydraulic actuators. The result is better performance at low revolutions per minute (rpm), lower fuel consumption, and lower harmful emissions.

One of the most remarkable feature of this behemoth is the high thermal efficiency, which exceeds 50%. This means that 50% of the heat generated by burning fuel is converted to power. For comparison, most automotive and small aircraft engines can only achieve 25-30% thermal efficiency. Even at its most efficient power setting, the big 14-cylinder engine consumes 1,660 gallons of heavy fuel oil per hour.

Some stats about the engine:

Bore: 960 mm
Stroke: 2,500 mm
Displacement: 1,820 liters per cylinder
Mean piston speed: 8.5 meters per second
Engine speed: 22–102 RPM
Torque: 7,603,850 newton metres (5,608,310 lbf·ft) @ 102 rpm
Power: up to 5,720 kW per cylinder, 34,320–80,080 kW (46,680–108,920 BHP) total
Mass of fuel injected per cylinder per cycle: ~160 g (about 6.5 ounces) @ full load
Crankshaft weight: 300 tons


The Emma Mærsk







Sources: Wikipedia, Dark Roasted Blend, Emma Mærsk

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  1. Man can do this yet we can't stop hunger and wars.

    1. But You know how to stop world hunger and wars over the globe Blacka ?

    2. Why should we? Hunger and war drive effort.

    3. the technology to do such things COMES from war and the need to feed people. Bleeding hearts, your brain is always in the "off" position.

  2. I don't know about wars, but a ship this big can carry a whole lotta groceries.

    1. How did they assemble that engine

  3. 2strokes don't have camshafts

    1. Sure they do...eveesel?r heard of the Detroit Di

    2. It has intake ports like a bike and exhaust valves ran by cam

    3. Imagine a motor mount breaking lol

  4. this engine as powerful as a GE90-115B turbo fan's

  5. Technology Submission - Novel Rotary-Turbo-InFlow Tech - Featured Development

    Atypical InFlow Thermodynamic
    Technology Proposal Submission
    Novel Fueled Motor Engine Type

    *State of the art Innovative concept Top system Higher efficient percent.
    Have similar system of the Aeolipile Heron Steam device from Alexandria 10-70 AD. -New Form-Function Motor-Engine Device. Next Step, Epic Design Change, Broken-Seal Revelation. -Desirable Power-Plant Innovation.

    YouTube; * Atypical New • GEARTURBINE / Retrodynamic = DextroRPM VS LevoInFlow + Ying Yang Thrust Way Type - Non Waste Looses

    -This innovative concept consists of hull and core where are held all 8 bteps of the work-flow which make the concept functional. The core has several gears and turbines which are responsible for these 8 steps (5 of them are dedicated to the turbo stages). The first step is fuel compression, followed by 2 cold turbo levels. The fourth step is where the fuel starts burning – combustion stage, which creates thrust for the next, 5th step – thrust step, which provides power to the planetary gears and turbines and moves the system. This step is followed by two hot turbo steps and the circle is enclosed by the final 8th step – bigger turbine. All this motion in a retrodynamic circumstance effect, wich is plus higher RPM speed of self reaction motion, because is like when something go to a something is coming. Its a Rotary-Turbo-InFlow Technique principle.

    *8-X/Y Thermodynamic CYCLE - Way Steps:
    1)1-Compression / bigger
    2)2-Turbo 1 cold
    3)2-Turbo 2 cold
    4)2-Combustion - circular motion flames / opposites
    5)2-Thrust - single turbo & planetary gears / ying yang
    6)2-Turbo 2 hot
    7)2-Turbo 1 hot
    8)1-Turbine / bigger

    -With Retrodynamic Dextrogiro vs Levogiro Phenomenon Effect. / Rotor-RPM VS InFlow / front to front; "Collision-Interaction Type" - inflow vs blades-gear-move. Technical unique dynamic innovative motion mode. [Retrodynamic Reaction = When the inflow have more velocity the rotor have more RPM Acceleration, with high (XY Position) Momentum] Which the internal flow (and rotor) duplicate its speed, when activated being in a rotor (and inflow) with [inverse] opposite Turns. A very strong Novel concept of torque power thrust.

    -Non-waste parasitic looses system for cooling, lubrication & combustion.

    -Shape-Mass + Rotary-Motion = Inertia-Dynamic / Form-Function Wide [Flat] Cylindrical shape + positive dynamic rotary mass = continue Inertia kinetic positive tendency motion. Like a Flywheel.

    -Combustion 2Two continue circular [Rockets] flames. [ying yang] opposite to the other. – With 2TWO very long distance INFLOW [inside propulsion] CONDUITS. -4 TURBOS Rotary Total Thrust-Power Regeneration Power System. -Mechanical direct 2two [Small] Planetary Gears at polar position. -Like the Ying Yang Symbol/Concept. -Wide out the Rotor circumference were have much more lever [HIGH Torque] POWER THRUST. -Military benefits; No blade erosion by sand & very low heat target signature profile. -3 points of power thrust; 1-flow way, 2-gear, 3-turbine. *Patent; Dic. 1991 IMPI Mexico #197187 All Rights Reserved. Carlos Barrera.

    1. Thanks for that completely unnecessary and unwanted info. Great work on the copy/paste.

  6. imagin kicking a rod

  7. 25480000 cc engine

  8. does the exhaust exit under the ship?

    1. nope. threw the smoke staff's on top.

  9. Why don't we use stargate electric motors (if you don't know what this is Google it) basically if this design was incorporated internally into every electric motor and the speeds were doubled on just a 12v input and more than quadrupled on 24v input just by this simplistic modification over the exterior of this electric motor using neodymium magnets staggered based on field lines. So more power from less voltage aka smaller battery banks to run your motor as well with torque and extra power two charge the battery banks off the same motor bieng powered by the batteries. If you don't get it a little Google it stargate motor.

    1. Because it does not work at the scale they need it to, that is why.

    2. For those wondering, a stargate motor is a free energy device - pseudoscience.

  10. BrightVerge: when we talk about ship's length, width and hight, please feet and or meters are much better than stories or football fields. also tonnage stats are good. I know you want to put things in perspective but we are smart enough to use real figures and understand.

  11. how they assemble this its impossible!!!!!!!!!!!!!!!!!!!!!!!

    1. just like and other inline13. just much much MUCH bigger parts and with a massive engine lift.

  12. heck of an engine

  13. please explain how they can change a piston & connecting rod in one cylinder with the engine running.Iam a diesel mechanic & this has me baffled.Please respond.Thankyou.

  14. Duke, they cannot do this with engine running. They can 'shut down' a cylinder if it has problems, i.e. no combustion taking place and no compression, but parts will still move. At sea, if conditions allow, the engine can be stopped and a piston removed & replaced in less than two hours.


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