This thing is described as the "Wartsila-Sulzer RTA96-C turbocharged two-stroke diesel engine". Shown above is the engine block and the main shaft, and if you count, you'll find it's a 10 cylinder engine. Built by The Aioi Works of Japan's Diesel United, Ltd.
That means this images are not of the very largest engine, because they have a 14 cylinder version. But you get the idea, just mulitply by 1.4.
The cylinder deck. Each cylinder displaces 1820 liters. Think about this for a moment. When you hear displacement numbers for cars, it's generally in cc. That's a cubic centimeter, otherwise known as a milliliter.
The displacement of all four cylinders of a 1992 Subaru Impreza is 1820 cc. That is 1/1000th of the displacement of one cylinder of this engine.
So a 14-cylinder completed engine has a displacement 14,000 times that of a 1992 Subaru. What do they use this engine for? According to that one page that documents it all...
...to move Subarus! The big engines go on very large container ships, such as the ones used to get cars across the seas. Ship owners like a single engine/single propeller design, and the new generation of larger container ships needed a bigger engine to propel them.
Even if you’re the most jaded diesel freak, here are some numbers about the RTA96-C14 that will make your eyes pop:
No. of Cylinders: 14
Height: 44 feet
Length: 89 feet
Weight: 2,300 tons
Crankshaft Weight: 300 tons.
Cylinder Bore: 38 inches.
Stoke: 98+ inches.
Individual Cylinder Displacement: 111,143 inches (1820 liters)
Horsepower: 7,790 hp (per cylinder)
Maximum Power Output (at 102 rpm): 108,920 hp.
Thermal Efficiency: More than 50% (!)
Diametral Cylinder Liner Wear Rate: 0.03 mm/1000 hours (very low)
Fuel Consumption at Maximum Economy: 0.260 lbs/hp/hour
The RTA96-C14 also comes in models featuring six to 12 cylinders. Sixteen and 18 cylinder versions are also on the drawing board.
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