B&W Marine Diesel

[swokrams58]

This engine is not running. It is being pushed by compressed air. That is what all the hiss is about. Large engines like these may be started moving with compressed air. Then the fuel is injected and the engine turns on its own after belching smoke. It gets a lot noisier, too.

[CE750]

Why would 6 people dislike this? What drugs are they on?

[peteacher52]

@CE750 You'd wonder, wouldn't you?! There seem to be some jossers who get their jollies in life by pushing doors marked 'Pull' then bitching about poor design.

[partykazer]

What we see moving : Is that the exhaust valve?

[james3765733]

This is very beautiful, thank you for sharing.

[Level5chris]

whats the fuel consumption?

[916fanatic1]

It was purposely designed for a shore based application,And b&w did not have any marine engines that big in 1932.Most ship power was steam turbine,reciprocating and turboelectric.It is NOT a marine engine.

[supermalibug]

Must say that I later worked on a B&W single effect ( with the exhaust valve on top) and that this engine is far much more comfortable and reliable from th point of view of a marine engineer

[supermalibug]

I was a ship engineer and I know this kind of engines . You can see in the video the exhaust gas leaking outside . Imagine in an engine room what it gives on a 24/24 . It looks spectacular and it is and this engine was not on top for reliability and maintenance . Was assigned later on a ship equiped with a SULZER engine ( a rolls royce). By this time, we didn't know what was an ear defender and we use to communicate by signs .

[XELA2T]

Please keep it in this good conditions.

It is a industrial monument to the world.

[johnsenkenn]

It is not an double opposed piston.......but an double acting engine.

[916fanatic1]

This is not a marine engine.Its in the powerehouse in copenhagen denmrk

[steviejlyons]

@916fanatic1. This is the only working engine left of its type. A marine engine in a shore based power station. If you had been to sea as an engineer at the time. This is the type of engine you would have worked on. To be able to see this in power house start up once a month is a credit to the Danish Authorities.

[thejudge1944]

Having served on 3 ships with this engine I nearly had an orgasm listening to it again after so many years.

[sbd403]

Nice to hear 2-stroke engine sound!

[Rogier21]

Never seen this before. You must use an incredible ammount of starting air to power it up!

[StartYourEnginejp]

2 stroke diesel is unstable

[PP0YT]

@StartYourEnginejp LOL

[XELA2T]

@StartYourEnginejp

crude oil burning 2stroke cross head engines are the most powerfull and the most reliable marine diesel engines ever !!!

[steamwally]

Just incredible! Anyone know how many horse power she is?

[2jzgtejza80]

Samsung and Hyundai are the top boat makers in the world, now.

[keoki1978]

The TV company and car company make boats now?? I havent seen anything here in the states that would suggest that. Personally, I'd stick to some custom built boats out of stuart fla and use either Cat or MAN diesels thank you very much...

[2jzgtejza80]

@keoki1978

Hyundai producing boats for long long time...why people always think that electronic industries is primary??? Samsung is just name of company. The products are actually what company present.

Also did you know that Yamaha is 4th company in the world in production of steel and pig iron from blast furnace???

[KABUKIZA216]

4 stroke engine?

[johnsenkenn]

KABUKI.

Two stroke, double action, old from the thirties, it have been working as a generator in a power station.

[mudder01player]

how do u evn dyno that thing!

[snyllermand]

In 1933. Most ships in the world, was steaming, not on diesel. Hundai, was not a word, Wartsila, a black spot in Sweden,.

The ship diesel, came from Denmark..

[sz42781]

stick your dick next to the piston rod

[MrGurugamage]

I sailed in M.V.Automeden,M.V.Anchises,M.V­.Autolycus all Built in Harlaend & Wolf Docks of Belfast. Never had a Scavenge fire .There is a working model of this engine in South Kengsinton Museum in London.The Blowers were Roots Blowers and No Turbocharging ,Had to lubricate the Exhaust Pistons regularly.

[MrGurugamage]

I sailed in Blue Funnel A Boats which had this engine, which were built in 1947. Each cylinder had 3 pistons, Main Piston and 2 Exhaust Pistons and 4 Injectors ( Fuel Valves .* cylinders ad RPM of 116.This engine fired from Top and Bottom of the Piston and that is why it is called a Double acting engine -RG

[Uniflow]

On the back of these engines are two mechanical blowers,each having two gear wheels with four teeth each. When well used they are VERY noisy. I am also rather deaf but the worst ship I was on was a steam ship where the gearbox was so noisy that when you came off watch you couldn't hear a word anyone said to you for ten minutes.

[Ben31337l]

Why is this so quiet? I thought an engine of this size would sound like 10 times as loud as a loco engine or a ships engine.

[steviejlyons]

Probably because its is only a film clip on youtube. I can assure you that the engineer at the controls is not wearing ear defenders to enhance his looks. Obviously you have never been in a marine engine room....

[Ben31337l]

ya. your right.

[annanoli]

In a real engine room you will have to add generators,ventilators compressors,tenth of pumps in a much reduced space

[Ben31337l]

Are generators needed on this sort of engine?

if so why?

[annanoli]

Well. you might have electrical water circulation pumps for cooling purpose. Electric air compressor for startup and some controls (clutch if applicable,governors) Fuel must be transferred fro settlement tanks to day tanks,as well as lube oil,all with electrically driven pumps (seldom powered by engine itself) Prelubrication pumps are electrical.

Of course on older engines you had less electrical needs,but problem remains

[annanoli]

Bear in mind this is a shore based installation. on board ships life is harder...Most of marine engineers are half deaf..including my dad.

i'm a former deep sea captain,now a tugboat skipper

[annanoli]

i forgot to add the loudest things:

turbochargers. usually in a big engine you have 3 or 4 turbochargers for scavenging air.

in engineers jargon theirs sound is known as the "Lion's Roar"

[XELA2T]

@Ben31337l

I had the same impression that this kind of opposite piston engines, (among others I saw a doxford clip as well), are comparably even very silent.

(Don`t you worry, I have been in the engines with big crude oil 4 stroke and crosshead 2 stroke engines for sure).

The sound of the auxiliary diesels was always dominating the main engine in these clips, I still do not have any explanation for that.

[johnsenkenn]

@XELA2T

It is not an opposed piston engine, but an double acting engine.

[Dieselolds]

Amazing engine

[Prestologs]

Excellent! It is reminiscent of the Sun-Doxford.

[zooeyhall]

This is fascinating stuff! Thanks for posting!

Would be great to include a schematic and/or animation of the "innards" of this engine!

[fkeyboard]

I can listen to this for days.

[lostnyc2]

How is this a titled MARINE engine when it is in a POWER STATION???

I like the oily smoke wafting up in the sunlight hehe

[777worldliner]

dam thats big!!!

[Ferrariman60]

The engine works like any other diesel you'd find in a car?

[fascaso]

No, it's an opposed engine.  There is no cylinder head and there are two crankshafts. Google "Opposed piston engine" for more details.

[Mitsugejl]

It is not an opposed piston engine like faribanks morse and such. This is a doubleacting diesel engine with combustion at the top and the bottom of the piston and only one crankshaft. It is infact the same princip as you find in a car, the only difference is the combustion taking place at the bottom of the piston. I have the schematic on this engine with cut-away drawings of a cylinder......

[fascaso]

By the injector lines (47 seconds) it looks like 16 of them. So the piston has 2 "tops" and the engine fires on TDC and BDC? Seems like it would make for a difficult seal on the bottom piston, where the connecting rod connector comes through. Interesting stuff, is there a schematic online of this engine?

[Mitsugejl]

Exactly, it fires on both sides of the piston. That isnt the injector lines, its a battery of inspectionglasses for the lube oil, one battery per cylinder. The injectorpumps sits right under the upper catwalk on the engine. Oh yes, its a difficult seal, thats why you can hear that hissing noise and the smoke pouring out right beside the controlpanel when it starts...

[shmeckerwrecker]

Yes I know I bought this engine to put in my 73 volkswagen superbeatle!!!

[Weldaz1]

Fairbanks & Morse uses the same principle...I'm always amazed at these large diesels. Me, I work on Class 8 diesels...Cat, Cummins, Detroit, Mack...

Good stuff.

[metalkanin]

I used to work for MAN B&W next door to this old girl. You're never in doubt when it starts up - black smoke comes bellying out of the chimney for about 15 minutes, and then it turns cleaner as the engine heats up.

It is actually still in service. It works as emergency generator, so if for any reason the power plants fail and can't provide power, this old girl starts up and provides emergency power for central Copenhagen... and ensures that the power plants can get back online.

[kapurann]

あの古さがとてもよいｗ

[sz42781]

oh yes yes

[Mitsugejl]

Also:

Built in '32 and world biggest dieselengine for 40 years measured in efficient HP

Pressure, compression: 35 atmosphere

Pressure, maximum: 50 atmosphere

Moving middlepressure: 7 atmosphere

Diesel is injected at 350-400 atmosphere

Dieselconsumption: approx. 240 g./kWh at 12.000 kW

Exhausttemperature: 300 degrees celsius at 12.000 kW

Bearings is lubricated by pressure at 2,5 atmosphere

Engine is still a standby unit, often used at blackouts, to reestablish grid frequency

[tpvalley]

240g/kwh;

does this mean for every kw of power it uses 240g of diesel per hour?

so if it had 10,000kw then it uses

2400,000g/ 2400kg per hour?

[TheFartenator]

It means to produce 1kw for an hour, it uses 240g of diesel.

[tpvalley]

Thanks.

I guess it will use more fuel than my 60bhp diesel car!! lol.

However I think it may use less fuel per kw/h!?

I wonder; do u know a typical smaller diesels kw/h consumption for comparison?

[Mitsugejl]

Worlds bigget diesel engine for 40 years. 8 cylinders 15000 kW at 115 rpm (normal operating range) Bore 840 mm Stroke 1500 mm Built in 1932 enginenumber 2000 flywheel weighs 80 ton crankshaft weighs 140 ton engine weighs 1400 ton enginelength 24,5 meter & 12,5 meter tall 4 roots blowers deliver 1800 cubicmeters of scavengeair a minute, lubrication consists of 40 ton coolingoil which enters the engine 10 times a hour. I have the datasheet for this engine + some technical drawings!

[steviejlyons]

I would like to see these

[Mitsugejl]

Then give me your email, and i will send them to you as soon as i can...

[Arthurus1983]

@steviejlyons Very amazing enginering aer piece from the past,I can't to wait to go o sea or my cadet's stage!!!

I hope i get an old engine and not an elctronic shitty thing...

[zigeunerjack]

Well it's slightly bigger than my car's engine :(

[muslimkush]

what a joke !!

this engine is 1000 times more powerful than your car engine

[thermoid]

that's not on a boat, its in an old powerplant in Copenhagen

[steviejlyons]

thermold is Correct. It is still a great marine engine. You would never be able to see such a feat of engineering anywhere else. Even if it was on a ship you would never capture this on video.

[deirup510]

On the last ship I was on we had a brand new B&W 6S50 slow-speed that was made in China by Dalian Marine Diesel, and the thing was a total piece of crap, everything was cheap and falling apart.

Latest rumors were that B&W was thinking of revoking their license to build the engines because they did such a bad job.

[sz42781]

china go figure

[TheChiefEngineer]

Wartsila is the way to go ;)

[sz42781]

Fartsila

[sz42781]

Wartsila vs Hyundii who wins?

[TheChiefEngineer]

well, I spent a lot of years working on both Wartsila and MAN B&W engines (including those built by Hyndai under licence)

Wartsila wins hands down.

[sz42781]

I C

[deirup510]

That thing is AWESOME!!!

I work with much more modern engines, but that thing is really cool, especially because all the exhaust valves are exposed like that.

[vd172hb]

These are not exhaust valves, but upper pistons. Do some searching on "Doxford opposed piston" an d you will get the idea.

[deirup510]

hmmm. I see, they're pistons with a ridiculously short stroke. So, they've got intake ports on the cylinder liner and exhaust valves on the side?

Anyways, this thing is really cool. I love huge complex machines in any form. You know that the designing engineers just had a ball with it.

[thermoid]

double action cylinders

[Mitsugejl]

It is indeed the exhaust valve. This B&W diesel is not equipped with opposing pistons. It is a doubleacting diesel engine, you have combustion at the top and the bottom of the piston, intake at the cylinder liner and exhaust through those sliders you see. Each of the 8 cylinders has a exhaustpiston at the top and at the bottom of the cylinder. the hissing noise you hear is the lower exhaust piston because they tend to leak. Im from denmark and this engine is situated at Dieselhouse in copenhagen

[facethemonky]

jeg har været der ude og se den starte SEJT

[Kellatie32Rosny70Roa]

It takes me back to watch keeping on various Liverpool registered vessels close to fifty years ago. They were work horses, but very happy days.

[douro20]

This isn't actually an opposed-piston engine, but a double-acting engine using a single piston with a sliding member which transfers the power to the crankcase. It is a remarkably simple design which uses exhaust valves actuated by the same sliding member.

[douro20]

The same principle is used in diesel-driven pile-driving hammers.

[67genxer]

this proves once again that the most eco friendly way for the future is the make shit that lasts. ask cuba who polluted more over the last 50 years. us with our throw away bullshit or them with their 1957 Chevy's that they keep going decade after decade.

[damicnewtn]

This type of engine was not only built by B&W. Harland & Wolf used to build B&W engines under licence. I sailed on a Blue Funnel Ship the Autolycus she had a 9 cylinder double acting opposed piston engine made under licence by H&W. The B&W works had a single cylinder engin of this type to produce DC power for some of the old machinery they had. It was referred to as a Junkers engine. They used to have a working and cutaway model in the B&W Museum in Christianshavn

[ed110484]

The first I heard of this engine was when I happened on the sectioned model of it in the London Science Museum. I've always thought a double-acting combustion engine must be possible, but I've never seen one before. I'd be interested to know why the idea never became popular.

[tpvalley]

My grandad worked on double acting diesels, the problems were the side of the piston with the conection through the stuffing box, was prone to leak at stuffing box.

They used a uniflow type on some with strange slide valve exhaust valve.

See vintage hot bulb engines website, they have a section on normal diesels, with, a cross section of the harland and wolffe engine!!

[douro20]

This engine uses so-called "exhaust pistons" which move with the piston and uncover the exhaust ports when they move inward. They ride on a separate shaft which is driven by a lever connected to the cross-member which drives the crank.

[yassine4902]

a translation in french?!i'm a engine marine student officer, i still study but especially in french, because i'm moroccan and we speak French first than a bit english!

[MrGurugamage]

It was a 8 cylinder Engine .I was the third engineer in Autolycus in 1975 when she returned from Angola without discharging any cargo and stayed in Gladstone docks until the whole cargo was discharge

Ranjith Gurugamage from Sri Lanka

[douro20]

This engine was tested to make 15 megawatts of power and still makes that much to this day; I believe it never had a piston replaced.

[steviejlyons]

Probably because it runs only on diesel. Thats not to say it was one of the best engines ever built.

[alastairrussell2]

Its all coming back to me now! All engines of this type had problems with cracks in the cast iron bed plate and I think lloyds of London placed a 90 RPM limit on the engines as against the 130 rpm of the engine in the video. I will never forget the Port Hobart with her 64 bloody fuel injectors going like the clappers with the engine being operated on not diesel oil but black boiler fuel oil!! By god what a bloody workhouse she was!!!

[alastairrussell2]

'Steamaholic' is way 'off course' when he said that the British Doxford engine was superior to the B&W engine! The Doxford company stuffed themselves up when they refused the German and Japanese engine builders a license to build their engines. Lets see a Doxford engine on Youtube!!!

[tpvalley]

There is one!

[alastairrussell2]

The engine is a 8 cylinder double acting supercharged two stroke engine with I think had a blast injection fuel system using Diesel oil as a fuel. The engine would have had 32 injectors working every revolution ( 24 too many)!! I think she may have pushed out about 6000 BHP

[alastairrussell2]

I sailed on two ships with this type of engine as a engineer and I can tell you they both were bloody hard engines to work on. The MV Sarmiento had a single 8 cylinder engine with no blast injection and The MV Port Hobart also had no blast injection and had 2 x 8 cylinder engines with large diam. exhaust pistons that caused major problems with Scavenge fires.

[steamaholic]

nearly as good as the British built "Doford" engine :)

both are very good engines and should still be in production if it were not for gov't interference

[gb27turbo]

6650 liters???

[pliska1]

So  impressive! Can somebody tell me where could I find some technical details and blueprints of this engine?

[pnklint]

Obtain a copy of "Marine Diesel Engines" by JWM  Sothern. It will explain all about it and most othe rmarine diesels

[tpvalley]

I found an old engineering book from the 1930's, it had a loop scavenge diesel 2 stroke made by Alco!!

It had an extra row of intake ports that were one way valve controlled, they had more duration than exhaust but the one way valves only allowed air to flow after exhaust port was closed, not on the downstroke, so that u could pressure charge it more without losing extra air out of exhaust! genius!

[allenjanoch]

how much fule dos it take to keep it runing

[bugsier5]

Thats an engine!

[steviejlyons]

This is an eight cylinder double acting opposed piston diesel engine, type DM884ws-150, built by Burmeister and Wain in 1933 for the H C Orsted Power Station in Copenhagen. For 30 years it was the most powerful in the world. It is still in running order and started on the first Sunday of each month for visitors to the DieselHouse Museum

Cyl bore 840mm stroke 1500 mm rpm 115

engine is 24.5 mts long, 12.5 mts high and weighs 1,400 tonnes

[discovery82]

8 cylindre en ligne énormes!!! moteur de Paquebot lol ya une putain de compression!!

[douro20]

8 cylinders and a little over 12MW (if I remember correctly). It is a double-acting, blower-fed engine. This particular engine was used for about 45 years as a generating engine for the city of Copenhagen. It is still used sometimes to generate emergency power.

[JonatanGronoset]

Damn hell it's massive, making noise AND comes from a ship... I love it to bits! =D

[icecardinal]

How many cylinders and HP is this beast?