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Maximum power: 108,920 hp at 102 rpm

Maximum torque: 5,608,312 lb/ft at 102rpm

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The Wartsila-Sulzer RTA96-C turbocharged two-stroke diesel engine is the most powerful and most efficient prime-mover in the world today. The Aioi Works of Japan's Diesel United, Ltd built the first engines and is where some of these pictures were taken. It is available in 6 through 14 cylinder versions, all are inline engines. These engines were designed primarily for very large container ships. Ship owners like a single engine/single propeller design and the new generation of larger container ships needed a bigger engine to propel them. The cylinder bore is just under 38" and the stroke is just over 98". Each cylinder displaces 111,143 cubic inches (1820 liters) and produces 7780 horsepower. Total displacement comes out to 1,556,002 cubic inches (25,480 liters) for the fourteen cylinder version.

Some facts on the 14 cylinder version:

Total engine weight:

2300 tons (The crankshaft alone weighs 300 tons.)

Length:

89 feet

Height:

44 feet

Maximum power:

108,920 hp at 102 rpm

Maximum torque:

5,608,312 lb/ft at 102rpm

Fuel consumption at maximum power is 0.278 lbs per hp per hour (Brake Specific Fuel Consumption). Fuel consumption at maximum economy is 0.260 lbs/hp/hour. At maximum economy the engine exceeds 50% thermal efficiency. That is, more than 50% of the energy in the fuel in converted to motion.

For comparison, most automotive and small aircraft engines have BSFC figures in the 0.40-0.60 lbs/hp/hr range and 25-30% thermal efficiency range.

Even at its most efficient power setting, the big 14 consumes 1,660 gallons of heavy fuel oil per hour.

A cross section of the RTA96C:

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The internals of this engine are a bit different than most automotive engines.

The top of the connecting rod is not attached directly to the piston. The top of the connecting rod attaches to a "crosshead" which rides in guide channels. A long piston rod then connects the crosshead to the piston.

I assume this is done so the the sideways forces produced by the connecting rod are absorbed by the crosshead and not by the piston. Those sideways forces are what makes the cylinders in an auto engine get oval-shaped over time.

Installing the "thin-shell" bearings. Crank & rod journals are 38" in diameter and 16" wide:

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The crank sitting in the block (also known as a "gondola-style" bedplate). This is a 10 cylinder version. Note the steps by each crank throw that lead down into the crankcase:

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A piston & piston rod assembly. The piston is at the top. The large square plate at the bottom is where the whole assembly attaches to the crosshead:

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Some pistons:

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And some piston rods:

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The "spikes" on the piston rods are hollow tubes that go into the holes you can see on the bottom of the pistons (left picture) and inject oil into the inside of the piston which keeps the top of the piston from overheating. Some high-performance auto engines have a similar feature where an oil squirter nozzle squirts oil onto the bottom of the piston.

The cylinder deck (10 cylinder version). Cylinder liners are die-cast ductile cast iron. Look at the size of those head studs

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The first completed 12 cylinder engine

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All I can say is wow. Thats insane. But the low rpm makes the HP nowhere near as impressive as the torque.... 5,608,312 lb/ft at 102rpm is highly impressive to say the least...

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Mount that bitch to one of these and let see how much we can tow!!!!! My guess is it will fire up and take off and the earth will rotate extremely fast and throw everyone and everything into space! :D lol with all that tourqe... good lord...

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Mount that bitch to one of these and let see how much we can tow!!!!! My guess is it will fire up and take off and the earth will rotate extremely fast and throw everyone and everything into space! :D lol with all that tourqe... good lord...

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Weirdly enough... when I first saw those 3 silver disks above where the people are standing my first impression was that it was a few subs... lol http://www.stevemeadedesigns.com/board/public/style_emoticons/default/01nocomment8so.gif

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Weirdly enough... when I first saw those 3 silver disks above where the people are standing my first impression was that it was a few subs... lol http://www.stevemeadedesigns.com/board/public/style_emoticons/default/01nocomment8so.gif

Same here. i thought they resembled kicker CVR's lol

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My Videos

AQ + AA/Fi FTMFW!!!!!

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sad part is it is still going to have trouble moving those ships.... damn i wanna see a v8 that big...

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The set up your talking about would sound great in my Tahoe. Trade you my dog for it. He has one eye but that only makes for bad depth perception so hey so what if he is running into shit, look at it this way he is easy to sneak up ninja style on. (right side only)
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