World's Largest Engine

[blinko]

This is some engine:

Maximum power: 108,920 hp at 102 rpm

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

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.

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:

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:

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:

Some pistons:

And some piston rods:

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!:

The first completed 12 cylinder engine:

[Johnny]

I want that turbo for my car! does it dose bro cuz chich man re uleh

[Sammy34]

I want that turbo for my car! does it dose bro cuz chich man re uleh

someone pulled apart optimus prime to see waht as inside

[prescott06]

I have a friend who works on big diesel ship engines, he said to stop the boat they run the engine in reverse. Only it can take up to 30 mins to get it running backwards and then it can backfire and blow the massive turbo to bits!!

Also, not only is this the worlds biggest engine, but the worlds biggest repost.

[Silvia GTR]

Does it do skids

Thats mighty impressive! News to me

[Iron Chef]

I reckon the dyno was reading a bit optimistically - they don't make over 95,000...

[ashneel]

lol @ worlds biggest repost hahaha

buts thats huge

[THE GOD]

holy shit lol i saw the piks but i didnt think it was real but now i do hahaha

[joeyjoejoejuniorshabadoo]

I want that turbo for my car! does it dose bro cuz chich man re uleh

sweet... drop a brick on the accelerator and go to bed, and by the time you wake up the next morning and get in the car, you should have enough boost for a launch...

[eddieneedsboost]

sweet... drop a brick on the accelerator and go to bed, and by the time you wake up the next morning and get in the car, you should have enough boost for a launch...

Nah you just need an rb26 that revs to 1,000,000RPM

[CR34M]

this engine def need a rebuild, forgies, the works and a HKS T62R...that turbo on it is too small lol

[Black Widow]

lol @ 2 stroke

[Buddhz]

LOL @ joeyjoejoejuniors comment! hahaah

that turbo is almost bigger than my house let-alone a T62R...

[Ryan D]

It's probably lighter on fuel than a hummer

[levizzle]

That thing is ridiculous!

[babyskyline]

very cool

[Birds]

Can someone get in contact with them and find out if they are parting the engine? I'm looking to upgrade my throttle body to a throttle room.

Mines will probably crack its ECU and release an upgrade.

[astrotristan]

im waiting to see the shell it goes in...

[Luciano]

Mines will probably crack its ECU and release an upgrade.

lol!

[SL33K]

you can walk inside that engine?