That's what I call an engine!!!!!

[V8Ian]

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:
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Total engine weight:
2300 tons (The crankshaft alone weighs 300 tons.)
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Length:
89 feet
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Height:
44 feet
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Maximum power:
108,920 hp at 102 rpm
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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:

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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Wonder If Justin could do a valve grind on it?:D

[LandyAndy]

I once had the pleasure of visiting the engine room on a container ship.
The donk is HUGE!!!!
Surprisingly it was as clean as a new cars mojo!!!!
More like something to run a power station than a canoe!!!
Andrew

[V8Ian]

I once had the pleasure of visiting the engine room on a container ship.
The donk is HUGE!!!!
Surprisingly it was as clean as a new cars mojo!!!!
More like something to run a power station than a canoe!!!
Andrew
A couple of Cummins KTs can cover that..........in a small town.

Have you ever been in the generating room of an indigeonus settlement over your side? Quite impressive too.

[dmdigital]

I can read the text, but can't see the pictures:confused:

Think I've come across this before though.

[Sleepy]

Sounds impressive.:o Cant see the pics either.:(

[Grockle]

I could e-mail the pic's if you wanted to see them, it is awesome.
ps thanks Ian:)

[banjo]

Yep i would like to have a look thanx Grockle

[JDNSW]

I once had the pleasure of visiting the engine room on a container ship.
The donk is HUGE!!!!
Surprisingly it was as clean as a new cars mojo!!!!
More like something to run a power station than a canoe!!!
Andrew

Actually, the motors used to run diesel or small gas power plants are usually the same engines used to run ships of the same power, so not surprising.

One of the interesting visits I did in the early sixties was to the old power station in Roma. This contained a virtual museum of engines, starting with a four cylinder spark ignition gas engine of about 100hp, installed to run on producer gas from wood chips in the 1930s. They increased in size up to the most modern ones, two 1,000hp eight cylinder NA diesels from the 1950s - about fifteen feet high, and twenty feet long, they had been converted to run on gas straight from a nearby gasfield.

John

[LandyAndy]

No I havent Ian.Only the best I would expect.
Andrew

[Grockle]

Yep i would like to have a look thanx Grockle

pm me your e-mail address then Jason

[banjo]

Hey thanx Grockle those pics are AWESOME i have never seen an engine like that before..When i did my trade i got to look at a big train diesel & i thought that was big as i could stand in the bore.i could live in one of those bores..

[Bush65]

Sulzer (company that designed that engine) have a good reputation.

One chemical plant I worked at for a while installed a 3 cylinder Sulzer air compressor to increase their compressed air capacity during one of the plant upgrades. The compressor was good, but presented a lot of challenges to prevent the pipework from cracking due to some complex vibrations - Sulzer came up with some interesting additions to the discharge area, but they weren't completely successful.

I can't recall the displacement of the Sulzer compressor but it is 2 stories high. The main compressor has much greater capacity, but it is an axial compressor driven by a large steam turbine.


Fuel consumption at maximum power is 0.278 lbs per hp per hour (Brake Specific Fuel Consumption). ...
For comparison, most automotive and small aircraft engines have BSFC figures in the 0.40-0.60 lbs/hp/hr range ...
A turbo charged and intercooled, direct injection diesel for automotive use will usually have a BSFC figure less than 0.35 lbs/hp/hr at maximum power.

[groucho]

"While i have the head off may as well give give her a decoke"
A medeum size sulzer.
This is not one of my pics. scammed off the net.
Working around the wharves i have been lucky to see a few ships engines
being repaired or having a head change truly interesting.
imagine the size of the tension wrench..Mark







https://www.aulro.com/afvb/images/imported/2010/02/413.jpg

[Bushie]

For those that haven't/can't see the pics I believe this is the engine referred to

The Most Powerful Diesel Engine in the World (http://people.bath.ac.uk/ccsshb/12cyl/)



Martyn

[stig0000]

i just love how engines work,, and to see how sumthing that massive and all that wight been thrown about it still amazes me

[Bush65]

...
imagine the size of the tension wrench..Mark
They use a device that screws onto the thread protruding through the nut, then use hydraulics to stretch the stud. The nut can then be tightened/loosened by hand.

Ship's engines usually have separate heads for each cylinder and those that I have seen, use hydraulic tensioners that do all head studs simultaneously.

[buzz66]

https://www.aulro.com/afvb/images/imported/2010/02/388.jpg

[V8Ian]

https://www.aulro.com/afvb/images/imported/2010/02/388.jpg
Bet that's not a 1624;)

[PAT303]

[QUOTE=Bush65;1188379]They use a device that screws onto the thread protruding through the nut, then use hydraulics to stretch the stud. The nut can then be tightened/loosened by hand.



Thread puller,dangerous mongrol of things.Around sites now they have been replaced with hydro nuts,they are a hydraulic jack with a threaded section that screws down and holds the tension.Hytorcs are still in abundance and they are also a good machine to use. Pat