Emma Maersk Main Engine

[zedextreme8177]

It sounds like 1000 drums at a beat!

[douro20]

The sheer size of this engine means they could make it as complex as they want. This is not only the largest engine in the world, it could very well also be the world's most complex.

[douro20]

Look at the size of those injection lines!

[natetallman]

Do you have video of this thing starting up? Also, does it ever get shut down?

[douro20]

@natetallman

These engines are started and stopped quite often.  Only when at sail do they run continuously. The engine is direct-reversing; it can be run in either direction just by reversing the direction of the starting motors.

[frogeye61]

I'm glad to finally get a chance to see that engine. The 14 cyl has been an inspiration to us. Our R&D chief decided long ago that the electronic engine shouldn't be more than 12 cyl, so the operating panel software is actually the limiting factor. Within a couple years you will also see the MAN B&W 14 cylinder out on the high seas.

That is impressive, but even still, I must say that the 12 cyl B&W is still more efficient (slightly) and cheaper to maintain.

Hats off to you :)

[bigjobbruce]

looks like some cylinder liners and pistons at the end there. def a 2 stroke diesel. at the begining did you show the injector pump assembly?

[GRV1]

@bigjobbruce I think at 0:18 that is the cylinder oil lubrication adjustment. You can see the little balls bounce with each stroke, very cool!

[mnptbrag]

How many turbos does it have?

[jesusisbetter]

Now, I'm an aircraft mechanic & work on pretty big engines sometimes (mostly turbine, but some recip), but I don't have a CLUE what I'm looking at here! I understand diesel engines and stroke, but what, for example, are in the huge roundish housings? Cylinders & pistons? Shafts? What's up on that long bay with stairs going up to it? This is fascinating & I could spend hours poking around in there! Someone fill me in. Thanks!

[GRV1]

@jesusisbetter If you mean the large housings with ABB on, they are the turbochargers for the engine, the engine has 4 of them.

And if you are referring to the small red staircase leading up the engine, there you have the cylinder heads with the fuel pumps (you can see the braided pipe going from the fuel pump to the injector), your hydraulics for opening the exhaust valve and some other general gubbins like cylinder oil.

You can see the pistons and cylinder hanging on the wall. 1:19 :)

[NMMarEng]

Nice Video - Although a B&W man myself I do appreciate the Sulzer as well.

[teletubbykiller23]

Does this monster engine run on diesel or marine heavy fuel oil? i would guess probably heavy fuel oil since its dirt cheap and plentiful but after seeing what "bunker C oil" looks like i wouldent touch it

[ptschafer]

Pretty cool to see those huge ABB regenerative cells onboard. And I thought that the max RPM for this thing was close to 300 RPM?

[SpeX2112]

can she big switched to HFO?

[tupsumato]

@SpeX2112, why would anyone run an engine like that with other than HFO?

[BadPoker12345]

Only the top of the engine, the abb construction u see are only the turbochargers, gives about 25 cubic meters of air every second to each cilinder xD

Its sick...

Nice footage, are u engineer, aboard the vessel?

[vanwahlgren]

Hyundai makes the best diesels! thanks for the vid.. there is a great webside google worlds largest diesel engine. these puppies have 1 valve per cylinder and are a beast. Made in Ulsan Korea!

[Jackle61]

I have some specs and interesting pictures of these engines being built, if anyone is interested PM me.  What you are seeing in this video is just the head of the engine. The entire engine is 44ft tall!

[hyperdart200]

no its more

[vettelthebest]

Spettacolo, questo è il 14RTflex96C(sistema common rail con flessibilità di utilizzo dei tipi di combustibile). E' l'evoluzione dell' RTA (con pompa di iniezione e valvola di scarico comandate dall'albero a camme) Questo è un capolavoro di ingegneria meccanica, non avrà una potenza specifica elevata, ma la coppia motrice è spaventosa (298 NxM/litro).

[CMA212]

This past summer I sailed with my first MAN MK-90, I thought that was huge! this is just rediculous!!!

[pieperx]

ABB!!!

[916fanatic1]

Man,i would love to get a look at this engine

[trinityroughneck]

anybody can tell that that engine is strictly solar power

[EspenBid]

These ship diesel engines are real engines, and car vehicle engines are not in the same class as theese engines.

[EspenBid]

These big ship diesel engines has a smaller waste of energy then smaller engines.

The exhaust gas is beeing used to produce steam in the exhaust boilers. The steam can be used to run a steam generator. Or cago pumps, heating oil/water.

To the one of the comment wrighters.!! THESE ENGINES HAS NO SPARKPLUGS!! Do your homework you swine.

Peoples who dont have education in ship engine systems as an Marine Engineer , do not speak of something you dont have a clue on.

[davetileguy]

espenbid//is that how you spell "wrighters"??

[GRV1]

Remember that shipping is an international business employing engineers of all nationalities. It is therefore foolhardy to assume that English is every marine engineers mother tongue.

[robzombay72]

You know your shit

[josephtan1818]

@EspenBid I think its exhaust gas boiler, such configuration is somewhat called combined diesel and steam where's the exhaust from the main engine is used to produce steam to drive its small steam turbine and other pump. main engine drive propeller and make electricity, the electric motor then augment the propeller's speed on this giant cargo ship.

[proaudiohd]

what a beast! I'd love to be in that room.

[jorenvonk]

I completely understand why these engines work the way they do (cost), but I'm still amazed they build 2 stroke engines running on shipping diesel these days. It just seems such a gigantic waste of energy.

If they'd use engines with all the advances from the automotive industry, wouldn't that make these engines more fuel efficient and environmentally friendly?

Or is it because 4-strokes have more weight and cant run at low rpms..

Im puzzled :P

[GRV1]

Why? These engines are 50% efficient (if not more) at above 80% MCR (which they spend most of their time at) and the 2 stroke design means that the engine can be directly coupled to the propellor, cutting down on expensive gear boxs or generator sets for diesel electric.

The fuel is heavy fuel oil which is dirt cheap in comparison to car diesel ($600/tonne, Diesel is like $2000/tonne) but the price you pay is that the fuel has to be cleaned and it contains quite a few impurities.

[GRV1]

Continued...

The fuel has to be cleaned before use and although Sulzer/Wartsila and MAN are making advances in electronic common rail injection, it is still unproven and there are reports that the fuel is wearing away the seals and injectors because of the previously said impurities. So, electronic, common rail injection is coming, it is just when you have a technology that is proven for so many years, makes a sound investment. it is all about money.

4 strokes are used on cruise ships.

[torTIja]

the high temps from mfo cause also trouble to the gaskets ;-)

[trahcceb]

A two stroke diesel is far far removed from your little motorbike engine. For starters, this is diesel, and it has forced induction (turbocharging and/or supercharging). The 2 stroke diesel has the best scavenging, meaning it recovers alot of energy spent.

There really is no point in 4-stroke diesels unless it is a high speed automotive application. A diesel burns slower, requires less complication. Diesels has been around for over 100years, they know what they are doing. ;-)

[jorenvonk]

Thanks for your comments :) Makes more sense to me now.

[dunder62]

@trahcceb Wartsila 18-V 64 engine 400rpm 35000kW 4-stroke....... These are in passenger vessels ........lower heigt = more cabins.....Voyager of the Seas for example 4-stroke engines.. These enginges are also widely used with generator sets around the world, Asia, Africa, South America .........A lot of these are produced...... 4-stroke engines are not only made for automotives.....

[tupsumato]

@dunder62, I don't think they ever built a 18V64. It was offered but no-one bought it.

[rudeboyzero]

These things don't waste a lot of energy. You have to remember that this is not the same two stroke engine like in your average chainsaw.

The exhaust is controlled by a valve, they are turbocharged, and the engines have common rail injection these days.

Also, these engines can run in both directions, which negates expensive gearboxes or other means for thrust reversing.

[ShugInternational]

@rudeboyzero hi, how do the engines run in reverse? I take it you have to shut them down first? Is it the starting air being distributed in the opposite sequence? I'm curious to know. Thanks

[joffeloff]

@jorenvonk You must be thinking of moped engines. The cylinders on these engines are completely separated from the crank case. Since they are direct injection there is no waste of fuel or oil in the exhaust while scavenging. A two-stroke design such as this is much more efficient than a four-stroke and produces 1.8 times the power per RPM due to the lack of exhaust and intake strokes.

Four-stroke engines are not more 'advanced'. Only for port injection petrol, which is yesterday's tech.

[jorenvonk]

@joffeloff Thanks!

[nightdrifter100]

it a 2 stroke it said in desc

[iainmackay9]

impressive, the largest i've worked on was a MAN b&W 12s90, which was 74khp i think. can anybody tell me the stroke, bore etc of this beast

[JtsGreene]

Thats just the head of the engine. He didn't go down the stairs

[916fanatic1]

Swapping pistons is not as hard as you think.Overhead cranes are located above the engine for this purpose.When i was in the army i had to swap out the powerpack on my m60 tank.proboblynot any harder than that

[corydorastube]

Hmmm!

Your tank wouldn't roll about in an arc of 70 degrees with the engine stopped. Pulling a unit at sea is fraught with danger. We did it on a 75,000 tone bulk carrier because a con rod bent. The con rod was as thick as a mans' thigh.

[dimented24x7]

Imagine having to swap in one of those pistons and cylinder liners into THAT engine.

[jackielee62]

need one of these for my vespa!

[shadowmanMarckus]

i worked on it....i was testing a new fuel pump system...it is huge..

[Lasselkv28]

109.000hp on the crank.

All the turbos drive generators

[kgoody84]

how rpm's does that thing run at?

[Orbit888]

From about 25 to about 100 rpm. Max is 102 as far as I remenber.

[kgoody84]

damn. i bet the torque it produces is absolutely unreal.

[Nza420]

5,608,312 lb/ft at 102rpm

[kgoody84]

! ! ! ! ! !

[alxcsb]

@Orbit888 I read that the engine usually runs at around 92RPM.

[twobazzar]

kinda scary...its so clean below the water line.....

[transdrole]

That's possibly the best username I've come across, lol

[Bloodgod40]

What's the pallet trolley for? (at 0:48 or so)

[DMDreaper666]

rope?

[mammacalo]

just amazing !

[RammuDK]

When the ship calls a port, they often receive stores for the engine room. The trolley is simply for moving pallets of stores and other heavy stuff around.

[nexprotein28]

I always wonder why Captains retain executive command on ships, when their arse depends on the Chief to get them from Point A to B? Oh..plotting the damn GPS positionon the chart is complicated stuff!

[HighAway]

Why is it this a two-stroke engine?

Too big for a two strokers.

[skippyguy3]

Course it isnt too big to be a two stroke idiot. Its a two stroke as its more fuel efficient and you get double the power!

[scott93257]

I'm with 25HNA6... I want to see more...please

[scott93257]

Rated at about 108,000 bhp and around 5 million ft lbs of torque? That thing is 80+ ft long and about 45 to 50 feet tall...the BIGGEST two stroke diesel engine in the world...Hell the biggest engine in the world period...

[vblogrsRLzrs]

whats amazing is that ONE GE-90 jet engine from a Boeing 777 has over 100,000 horsepower and its only 12ft tall, 20 feet long, and only weighs eight tons. of course the torques not quite so good and it wont last 50 years at full power lol

[scott93257]

Yeah that's true... the GE-90 is amazing too... i flew on a Triple 7 a few years ago... The thrust is incredible

[apeppink]

Not only that but the efficiency of simple cycle turbines (aviation) is abysmal (f/l thermal eff maybe 31% max.). You're comparing apples and oranges. Each industry has different requirements. These big crosshead engines will deliver upwards of 51% mcr thermal efficiency, while a heavy frame (non-aviation) steam cooled gas turbine run in combined cycle (gas turbine/steam turbine) can deliver over 60% mcr thermal efficiency in power plant service.

[apeppink]

It all depends on what the system requirements are. You can't compare apples and oranges.

[apeppink]

Also, marine and power engines and turbines run mcr nearly all their working lives while aviation turbines run max power (not an mcr rating) only at t/o, probably only 3-4% of their working lives on engines used in long haul service, ocean crossings and the like. While running at cruise (greatly reduced) power settings the firing temperature is much lower (which also aids longevity) hence the cycle efficiency is likewise much lower.

[mosipd]

@apeppink Aviation turbines hardly run at max power, the FMS of the aircraft takes into account weight, temperature and a number of other factors to calculate thrust needed for take off so that max power is rarely applied. That pilot can override that if needed, but they hardly ever hit max power. Aviation turbines run MCR all the while at altitude and generally have a climb profile that utilities a rather low power rating.

[tupsumato]

Keep in mind that the fuel type and quality requirements for aviation turbines and marine diesels are on a completely different level. These big engines are usually fed with a kind of fuel that's one step away from the stuff they put on the roads. That's why aero-derived gas turbines aren't that popular in commercial shipping.

[vblogrsRLzrs]

excellent point actually. in fact these engines often run on bunker fuel, which is like peanut butter at room temperature. put that into a jet turbine and it'll be trash in no time

[douro20]

@vblogrsRLzrs

And it also uses as much fuel on takeoff as this engine uses in an hour at full throttle.

[madzyzome]

Were those huge things he was walking by labeled with 3 "ABB"'s the turbochargers?

[usmma11guy]

i think there are 4 of them. And yes. they are turbochargers.

[NMMarEng]

@madzyzome Yes those are the turbos.

[kitfish1984]

Nice to see another clean Maersk ER, I served on the Brooklyn and you could eat your dinner off the walkways!

[joostvdz83]

The ladder at 0:04 wasn't so nice. ; - )

[VDKDK]

Very nice video, indeed!

Good to see Denmark once again setting the standard within shipping.

As far as I´ve heard there has been quite a few problems with the RT-flex´s socalled commonrail system, how is it running on the daily basis??

[apeppink]

Typical new technology. Teething probs. Electronically controlled injector and even valve timing will soon become std.

[arequipa1]

interesting

[25HNA6]

I'm just wondering, is it possible that yoy can make another video showing more parts of the engine? This is one of the first videos on youtube of the RTflex 96C and I would love to see more.

[snolly13]

Thats a factory on its own

impressive

[transdrole]

Is it loud in there? I said...

IS IT LOUD IN THERE?!?!

[petethebastard]

Hehehehehe.... WHAT?! EH?!

[mareflos]

:)

Seriously...

Not that much as you belive. With a low-rpm-engine you are still in an enviroment where you can speak to each other with a low voice without screaming. If you run a mid-rpm-engine, however, it's almost impossible to hear. But and anyway, the high-rpm from turbines is and should be a very good reason to wear ear protection anyhow.

[mareflos]

Not that much as you belive. With a low-rpm-engine you are still in an enviroment where you can speak to each other with a load voice without screaming. If you run a mid-rpm-engine, however, it's almost impossible to hear. But and anyway, the high-rpm from turbines is and should be a very good reason to weare ear protection anyhow.

[Ssykun]

@transdrole WHAT?!?!

[cta1boy]

Orbit888,Are you sure that's 2-stroke engine?? if yes i want to make a short visit because that's new to me...

[Orbit888]

Yes sure...

[johnsenkenn]

@Orbit888

Wikipedia says she has 8.. in all 40,000 hp caterpillar engines also. Do you know about this ? Are they generators.

[apeppink]

Yes. All the big crossheads are 2 cycle. The engine would be much larger still to get that much power out of a 4 stroke.

[rezlusrta]

oh. ok, but how the fuel supply to the injectors, u mean servo oil driven?, it must be hv auxiliary supplement (conventional used fuel p/p). coz as far i know the sulzer engine injection timing is controlled by

separate suction and spill valves regulated through eccentrics on hydraulically-actuated lay shafts. there is maybe a pump with high pressure delivered the fuel from the service tk to the solenoid v/vs then to the injectors?

[Orbit888]

The 8 fuel pumps deliver pressure to a fuel rail on which there are 14 units(ICU) monuted (one unit for each cylinder). On these ICU´s there are 3 solenoid valves (one for each injection valve)... these solenoid valves opens and closes for fuel to the injection valves. The servo-oil is used for moving small pistons inside the ICU. It is all computer controlled.

[rezlusrta]

i've sailed with sulzerRTA84..its having 4 t/chargers with mechanical cam... but i heard that the 96-RTFlex doesn't hv mechanical cam.. its control by the solenoid valves.. its really amazing...

[Orbit888]

Yes. There is a small mechanical cam for the 8 fuel pumps. The cam is approximately two meters long. Fuel injection, exhaust-valve etc. is electronically/servo-oil driven.

[skippyguy3]

Ive sailed on fairly big Slowspeed 2-Strokes but never realised the 96-RTFlex had 4 turbochargers?! And they are massive! That think is BIG!

[NMMarEng]

@skippyguy3 Years ago the old Sulzer 10RND90 also had 4

[DWOODY12]

Is them big white things spark plugs :S hahahaha nice big friggen ship, nice vid.

[Modenas4ever]

lol?? .....

[guillermocerpa]

IS ECONOMY SPEED.. IS T SULZER ENGINE

[marcusroos]

The engine is from the danish company Burmeister & Wein, or MAN B&W as the company is called these days. It is the biggest engine in the world.

[Stoffer11111]

No no no... It's a SULZER engine..

[marcusroos]

yes, my misstake. it is a sulzer engine, i mixed it up with the second largest class, the G-class, which are equipped with B&W engines.

[Stoffer11111]

No wrong again.. They also with Wärtsilä/sulzer engine.

12-cylindrede Wärtsilä RT-flex hovedmotor fra Doosan Engine Co., der yder 93,000 HK, vil GERD MÆRSK

[marcusroos]

According to other sources though, all af the ships in the g-class are equipped with HYUNDAI-B&W 10K90MC-C engines.

[Orbit888]

Maybe an older series of G-class ships you found info from. The newer ships all have this type Sulzer engine.

New G-class ships have 12 cylinders RT-flex Sulzer engines.

[SANNAFABICH]

big ass engine

[36thgallardo]

Magnaflow.

[scott93257]

Is that the 14 cylinder?

[Orbit888]

Yes, 14 cylinders

[whitehouse534]

sweet video thanks for the upload

[tarkineWild]

Impressive!

[apeppink]

75 MW, full load! Though with bunker so hi I doubt Maersk runs MCR anymore. They're probably slo steaming like everyone else.