Start Up of a WW2 Submarine Diesel Engine of a German U-Boat 🔊
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- čas přidán 23. 06. 2018
- Start up of a 6-cylinder diesel engine. The submarine engine RS 34 S was used in the Type XXIII submarines. Originally, it was designed by MWM as a diesel generator for the battleships Bismarck and Tirpitz. The engine has 108 liters cylinder capacity (18 liters for each cylinder) and 576 hp at 850 revolutions per minute.
The engine is located in a museum in Kiel, Germany: www.maschinenmuseum-kiel-wik.de
These are the steps performed to start the engine:
0:08 - The young machine operator begins to pre-lubricate the engine.
0:32 - After reaching 2 bar oil pressure, the older machine operator turns the engine manually.
1:44 - The engine is turned by compressed air with cylinder taps opened to blow out water or oil, if present. The engine is still being pre-lubricated.
1:57 - The machine operator closes the cylinder taps.
2:14 - Water pump switched on (control cabinet in the background).
2:16 - Fuel valve opened.
2:18 - Injection pumps on filling: Probably, this means that the injection pumps are set to maximum as a basic setting (big wheel). The final fuel amount is set by the governer (small wheel in the background).
2:21 - Preheating
2:30 - Glowplugs are glowing.
2:34 - Engine start by compressed air.
2:55 - The machine operator checks the combustion by opening the cylinder taps shortly.
3:13 - Finally, he raises the RPM by adjusting the governor.
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I'm a Diesel mechanic.
Sounds so smooth sounding.
It's just amazing how they built everything without computers.
@torvestas sister I think that's a reason why I took so many countries to defeat Germany. It's too bad they didn't put all the integents to good use. Very beautiful Country destroyed
I was going to mention how smooth it runs for an 80 y.o. engine
People were smarter
The Greasy Strangler 🤔 Na not really. Because the engines lasted a lot longer & the company’s were loosing💰 money due to the fact nothing needed to be replaced. So if no one was buying because things aren’t breaking then you wouldn’t have a need for a work force, thus no need for growth & new techs ect... Glad they fixed that problem 😉
Yes and makes you think what they should have build with computers. And maybe event more why they are not buildning this.
The sheer amount of brainpower, knowledge and engineering that went into building this is boggling. All without modern computers.
[the sheer amount of negative comments is unnecessary]
ट
Yeah. They designed this on a sheet of paper. Amazing.
Unfortunately war is a great stimulate for innovation
It had a computer........ a German brain
@@intrusive_thought_one, oh so that's why countries that have been war torn for centuries are still living in houses made of cow shit!
Respect to the German Engineers for making something incredible
Your language is common, but mistaken. Engineers don't build things, they design them from previous concepts and knowledge.
@@hud86 BS. How do you think the first one came to be?
@@hud86 Does not change the fact that this engine was developed and built in Germany.
Respect to developers of ASDIC.
@@hud86 then who tf design the previous design ? Sun ? God ? Such a stupid logid
The finest of German engines right there, I used to work for the UK agents for MWM. The sounds they make still makes the hairs on my neck stand up!
I have a question, what does MWM stand for?
@@Birb_of_Judge Motoren Werk Manheim aka MWM, the city in Baveria in fact the industrial heartland.
Only on your neck?
I’ve seen several of these engines that were used in New Zealand for generating electricity for rural communities - I understand that they operated flawlessly for more than 50 years - a testament to German engineering.
Hey mate, that's interesting, can you tell us where in nz and during what years? I only know of the diesel electric monster in Napier. Cheers
A testament to proper maintenance.
Any engine will last forever with proper maintenance.
A real test of “engineering” would to see how long it could last just running on its own.
@@x808drifter Any engine wont last forever with proper maintenance.... Any well-built engine will we know for a fact that germans build Engines and automotive very well.
A little more complicated than American or Japanese counterparts such as examples like the Passat w8 that need more maintenance than your average car but still Maintenance is a part of owning anything really.
no engine is going to survive forever if you dont maintain it simpler engines like Japanese ones will survive longer tho
my fuckin volkswagen will tell you different
@@lurk7967 Of course every engine can last forever - as long you keep replacing parts and components .....
Whenever you see a german mechanic turning knobs and switches..you know its the real deal
Maestro.. he is playing a symphony! He may not have composed this symphony but he is certainly conducting it!
Diesel was Austrian
Leider bröckelt der Begriff " Made in Germany" durch breit gesäte tech Mängel ( siehe Kolbenringe VW Tfsi Motoren ) habe mir ein Japanisches Auto geholt , deren Ehrbegriff zum Thema Qualität traue ich mehr
@@antorseax9492 Rudolf Christian Karl Diesel seems to have been a German to me.
autohmae en.m.wikipedia.org/wiki/Diesel_engine
That's a lovely sounding machine. There's something comforting about watching it come to life and start breathing. It's like a typewriter.
I work as a solar installer and I work with my hands everyday, after a while you can tell when something just flows. Watching this mans hands and the sureness in every touch has a reason. The smoothness in pulling that one particular wrentch out, adjuting and testing the airflow, awe inspiring...
I came here to write the same thing, but you did it much better than I would have done.
These things have over 5 million different working parts you join positive and negative
Si, creo todos los mecánicos con experiencia y dedicación tienen ese sexto sentido y buen tacto, no se como pero adquieren las habilidades manuales de presicion, un tanteo bien tanteado.
Yo lo veo en la cocina, sabes cuanto de sal o condimento poner y sale bien, no los pesas, solo agarras con los dedos.😅
Он занимается этим всю жизнь, все движения на автомате.
@@jasonjamrs7413nah homie, that’s just the panels, there’s inverters, disconnects, DG bi directional meters and all the wiring accordingly. I’m not saying I’m anywhere close to this master, buts it’s defiantly more complicated then joining a positive and negative together.
Also, NEVER put a positive with a negative, things will go boom lol
CZcams: You wanna see a WW2 sub engine start up?
ME: *YES*
Same lol
The Moment when the CZcams algorythm actually do his Job well :D
At 3 am
Wow it's sound incredible !! German mechanics was amazing in these tragic days of war, but after it's would be super until today !
An excellent engine but we’re British or American big diesels inferior? I don’t believe so.
A friend had a single deck 34 seat bus from 1953 with 10 litre Gardner engine. It had an enormous mileage yet still did 18 miles per gallon. Gardners we’re used in subs and ships.
Mad respect and gratitude to these guys for preserving this historic gem and sharing its workings with the public.
У нас на теплоходах до сих пор такие стоят
I live in the City where this is placed and I even were at this Museum, it's incredible to see this much machinery!
@@jisoo-can Wo ist das?
@@hanhdhsj Das ist in Kiel - Schleswig-Holstein.
Superb engine.
That’s the guy you want maintaining your stationary U Boat diesel. Absolute perfection.
Wow, it sounds exactly like the engine sound from submarine movies when they hear an enemy sub.
Down to the knocks and bangs, I bet they've recorded one of these exact engines, and used it for every movie.
Incredible.
It’s the same industry that makes a 747 crashing sound like a stuka dive bomber
Wow, did you think of this on your own?
@@drats1279 No, it was 6 months of crowdfunding and petitions, to get me access to Google's quantum computer.
It then took the QC about 2 months to come up with an appropriate comment.
Took me another few days to get home, re-find this video, and then commented.
Money well spent, wish it could have been done quicker, but our technology is currently too limited for such advanced AI capabilities and rapid calculations.
@@Holmesy87 great reply
@@Morongobill Google thanks you :)
Not only this engine is evidently very well maintained, you can see that this old man knows what he is doing. You can see it in the way he calmly works the procedures, adjusts what has to be adjusted, swiftly but never rushed. You can tell this man loves what he does.
похоже, он плавал на лодке с этим двигателем во время второй мировой.
100%
B
and it's still quieter then most Harley Davidson motorcycles here in the US :)
@@trvman1 and runs smoother
Damned Germans... That runs smoother than most Diesel automobiles that I've heard
JungleYT and it aint changed either my new passat tdi man, and it feels so much quicker than it is, tho i wouldnt know, maybe it is my pal told me he had tuned the thing up pretty damn great, but all that torque really gets you going, and it does so fast, it feels twice as quick as my 300hp volvo v70 i had, and its so damn quiet and smooth which im definitely not used to so since my v70 had a full 4 inch straight pipe from engine to tip, and its damn easy to go well up to 200km/h without even noticing, but man i love germany now
I mean, when an engine is as meticulously maintained as this one is, exactly what do you expect? 🤨
@@t.sorvig3540 It was a question of *size and scale* when compared to a little automobile. Don't be a Dork...
That's why they are responsible for Dieselgate
When you think about it, it makes sense. A submarine's primary strength is its stealth. You can't have your engine giving your position away to enemy sonar operators.
If you have ever been on a conventional submarine ,these are master pieces of engineering , brilliantly thought out and assembled ,with even backup system for certain critical equipment. The engineers who design these machines are pure geniuses.
Well, they were german, of course they are pure geniuses.
I think we weren't bad engineers ourselves operating, maintaining and fixing these whilst operating in hostile waters. All conventional submariners share a common bond irrespective of country
@@paulmonks9007 you sound pathetic! Take pride in your people!
One of the first engines that I got training on was a recovered older version, a Bohn & Kähler, closely resembling the ones seen on the original ' Das Boot '. Not a runner anymore as she came from a wreck, but man, I couldn't care less about that. What a joy to train as a lad, pulling cylinders on a block with such a history behind it. Even after spending some time in seawater, she would probably run if we had the parts that were missing. Sadly after I left school they scrapped her...idiots...kinda miss the old girl.
Why the hell would they scrap something like that? An enthusiast could have payed a good deal of money for it. Idiots indeed.
It's England, they scrapped all of their battleships.
@@bingusmctingus4395 Anf ocean liners. They scrapped Vamguard, Implacable, Aquitania, Mauritania and many more... why even build them.... especially Vanguard. Beaching them is free...
Me it was old Lister Blackstone gennys and marine twin banks....ah to turn back the hands of time!
Ah...ye old Lister & Petter's. we had one, two and three cylinder ones...all gone, scrapped. All that's left now are the memories...and even time is taking back those as well... .@@GrantJohnston-dr9rt
this thing is going on 80 years old and still starts and runs smooth as hell. Thing sounds like it just came off the assembly line yesterday. Shit was made to last back then.
I owned a 1945 willys jeep. Those jeeps were made to last only 3 months of war use. But it still running today. Sad how after the war, everything made in Japan!!!
Nothing has changed since those days in the world of big diesels, except to get better. Modern diesels of that size and larger are just as long-lasting, or more so, and they run even better, though unavoidably, they are more complex. Small engines of today last far longer than anything that was produced 80 years ago. Nowadays, a full-size pickup with 400,000 miles on it and no major repairs is something you can see every day. 80 years ago, if a car reached 100,000 miles, it meant there had been numerous valve jobs performed along the way!
@@ericl2969 People like to touch themselves to the thought of ohhhh we used to make things so GOOD and MUCH MORE BETTER than we do now. wtf is that supposed to mean? did we used to be extremely wasteful engineers? Do we not believe in the same standards today as back in the "good old days"? Just take the battery in your phone lol its better in every way than even the lipo batteries 10 years ago. Look at what we do with electric motors nowadays... good grief
@@Jmoneysmoothboy I'm glad to hear a reply based on reality instead of myth-based emotions. In that same vein, I used to know an expert house remodeler with tons of experience dealing with old and new homes, and whenever someone lamented how "They don't make 'em like they used to", his reply would be, "They never did."
@@finndog2759 what dyou mean doc? all the best stuff is made in Japan!
wow, this old guy knows every bit of this engine. he feels it :)
alishanmao a true mechanic will know his machine.
He was a teacher and then foundet this museum. I met him one day there...he is a remarkable man and I hope he has many years in good health to come!
"This is Johann ... our phantom!"
Maybe he built it
Especially he loves a diesel fuel sprays to his hands from a decompression valves :)
Ahhh! What a lovely sound! The chug chug of U-boat engine! White noise from the right idling engines are so soothing.
Сколько раз смотрю это видео и каждый раз восхищаюсь таким техническим исскуством и работой Механиков
В армии служил дизелистом на ДЭС,до сих пор помню алгоритм запуска Д100,,звук дизеля набирающего обороты, и мощь 1000 лс в твоих руках
I.m agree...
Немцы умеют строить , что да то да .
I keep thinking of how many of those are sitting on the floor of the Atlantic.
Savage my guy, absolute savage
In World War II Germany built 1,162 U-boats, of which 785 were destroyed and the remainder surrendered (or were scuttled to avoid surrender) at the capitulation. Of the 632 U-boats sunk at sea, Allied surface ships and shore-based aircraft accounted for the great majority (246 and 245 respectively).
@@Rustie_za So there are around 400 unaccounted vessels still sitting at the bottom of Davy Jones locker
@@afranca1825 no, there are 141 unaccounted for. (ships sunk 246 and aircraft sunk 245)
@ExtremeÑo WanChU What?
He truly adores this engine, every adjustment he makes and his calm demeanor.
Adjustment ? Isn’t he just opening and closing valves on the head to a relieve pressure and check the pressure
@@suzyrottencrotch5132 we got a narcissist over here lmao
@@suzyrottencrotch5132 Please stay away from any engine built before 1991 or any small engine regardless of year.
If a flute player, depress or doe not press the valves on her flute in the right sequence, she will mess up the whole ensemble. Same with this man.
@@suzyrottencrotch5132
And your a WW2 submarine engine expert.
Never let women around any sort of engine.
@@indiosveritas cope 💜💜
Als voormalig machinist op de Nederlandse onderzeeboten van de Potvisklasse en de Zwaardvisklasse spreekt me deze filmreportage zeer aan. Zelfs de Bosch brandstofpompen zien er bekend uit.
De procedure bij het opstarten van de motoren (op onze Nederlandse dieselboten in de jaren ‘80 en ‘90) ging wel wat vlotter, alles gereedmaken duurde maar even.
Bij snuiveren, dat betekent de motoren onder water opstarten met de inlaat-mast net boven de oppervlakte, was het belangrijk te controleren of er geen water in de motoren was gedrongen. Daarom was het tornen met lucht heel belangrijk. Ondertussen werden koelwaterafsluiters, luchtinlaten alvast gereed gemaakt zodat ze onmiddellijk (deels automatisch) konden openen als het bedrijf werd opgestart. Na het opstarten, werden de gekoppelde generatoren direct belast zodat de hoofdbatterij werd geladen. Er was geen sprake van warmdraaien ze werden heel snel volbelast. Het waren 3 stuks twaalf cilinder Stork Werkspoor motoren, die leverderden 920 kW per stuk. Indien er externe dreiging ontstond werden machines volbelast gesnelstopt, alle afsluiters werd met hoge vaart dichtgezet, en indien nodig werd er direct weggedoken. U kunt zich voorstellen dat de motoren door deze behandeling geen lange levensduur kenden. We hielden de motoren wel op bedrijfstemperatuur als ze gestopt waren, evenzo probeerden we ze na te koelen, mits dat kon. ( Bij geruisloze vaart onderwater werden alle pompen afgezet) .Daarom werden de dieselmotoren elke drie jaar volledig gereviseerd. In de film gaat natuurlijk alles erg rustig en gecontroleerd, tenslotte willen ze de oude machine heel houden. In werkelijkheid waren de machinisten ( net als wij) natuurlijk jonge kerels, met 30 was je al heel oud. In de film Das Boot is te zien hoe het er werkelijk aan toe ging.
Отлично! Ни с чем несравнимый мурлыкающий звук немецкого дизеля! Лучшая музыка на свете! Danke schön!
Чтобы завести надо произвести столько шума что любой акустик у слышит
@@loginovi82 шума нет только в гробу наверное....
That was fantastic to see. You just know everyone left with Tinnitus but it was worth it.
But it is a 10% VA claim for US veterans at least.
@@2000ViperGTSsubscribe LOL!
Huh
@@thisisbeyondajoke6748 z‘”
What's it like for a crash dive or surface....
This engine is a work of art. The sound it makes is hypnotic and has quality that is tangible. My hat is off to German engineers of the time.
@UCgbJG4GeCqWzkndTQN4djBw you're a dumb fuck, aren't you?
This was state of the art back in the day. Germans tech was FAR superior to anyone elses especially Americans. Which I'm guessing you are for making such a stupid fucking comment.
Far superior to The French and Soviets sure but not American. Sure we had the Sherman with little armor but we made a million + of em. Now how did all that superior German engineering work out in 44’?
@@brucechmiel7964
this is not engineering its called mass production capabilieties and if US was in europe it wouldn't be able to do this mass production due to the fighting but US was far away and safe geographically
@@Techie1224 the us is bigger than All the counties in Western Europe combined. And will enough natural resources and manufacturing capabilities coupled with inventors with minds decades ahead of the times. All the US needed was a 6 year global conflict to get the pieces together. Just like that. The Uboat stopped being a threat thanks to better detection and longer range planes. The Supermarine Spitfire and the superior North American Mustang put the Luftwaffe out of commission. Thanks to Rolls Royce. And the T-47 put the Red army knocking on Hitler’s bunker door. And do I even have to mention the Manhattan Project. The Allies won the war through numbers and Ingenuity.
@@brucechmiel7964 Yeah, like you would have a clue. German engineering was clearly superior, but they fought a war they were doomed to lose, overextended and resource drained. The Luftwaffe was overwhelmed by numbers; US producing fighters many times faster than they could shoot them down. Sure, the P51 was a brilliant fighter plane, but both tactics and individual pilot skills was far behind Germany's. German rocket technology propelled US space efforts and the ballistic missile program. And nowadays the US is a failed nation about to crumble under the weight of citizen's stupidity.
We had two of these engines at work, running side by side. They were installed and managed by the local electricity board, supplying electricity to the national grid and steam to the factory. They used heavy fuel oil (bunker fuel), stored in an 800-ton tank alongside. It had to be kept warm otherwise it would not flow into the engines, we were told. There was a large explosion (1990s) when a welder, on top of the full tank, ignited the vapour in the small void inside. The top blew off the tank and it roared, burning with a huge flame, like a Roman Candle firework. Unfortunately, the heat made a 30-ton tank of light hydraulic oil next to it (on legs) explode; the force causing it to fly over the roof of an adjacent building, emitting a huge flame from its base. It looked just like a rocket.
Sounds like it was a fun day at work! Lol
Bloody welders, if they are not trashing the paint job, they are blowing everything up xD
@@mr_b_hhc Lol!
@@bobjohnson1587 People lost their lives. Maybe they messed up, but they are dead. Do you have any idea what that means for their families?
Be flippant, know that when when YOUR spouse, son, daughter, mother, or father is the one who died you will be singing a different tune. I know. I was you until covid-19.
@@contumelious-8440 lmao bro take a fucking joke its not that hard
The old girl purrs like a swiss watch , sounds like it really would last for decades , a testament to the engineers that built them and and the guys operating and maintaining them .
I am also very happy you didn't put any stupid music on top of this vid!
they are learning
That happens so often by this type of videos !
Yeah.... that "bodies hit the floor" or whatever..
what? you don't want some nice, ukulele-toy-piano-and-whistling tune by some lumbersexual hipster and his girlfriend?
Abba... Mama mia...
“Das Boot theme intensivies“
Alaaaaarm!
@@areposs you mean,,,"AHHHHHHHHHLLLAAARRRRRM"
Yeah mechanic wasted oportunity to shout ERLAAAAAUFT! When it started. Shame.
@@75L48 he has crabs, he's distracted.
A most sublime film. As a media studies teacher, I have found that film to be about the most superlative example of life in a WW2 German submarine. I always suggested to my older students to watch this one to get a really good idea of what war was like for the submariners.
technology & engineering & perfection are born in Germany !
greetings from Morocco !
Very cool. I worked for a railroad for a few years as an electrician on locomotives. They use diesel engines to power a generator as well. This particular engine looks very similar in design to how GE diesel engines still look today (with EFI now). A lot of times machinists would forget to close those cylinder taps and when we'd go do an engine run to make sure it was making horsepower (4500hp @ 1050rpm) and no leaks and whatnot, you'd hear the air coming out and would have to go close them just like you see in the video. The handles were slightly different in design though. I hurt my neck and back and don't do that work anymore but while the history of this is way cooler, it brings back some good memories!
He7ký to
Dto
Lppsk
I've operated GE locomotives - they're garbage! Give me a GMD any day!
funny enough, the old huge locomotives from lugansk are having a legend about their engines coming from submarines
@@bobjohnson1587 GMD ? Is that a bit like a EMD ?
Just imagine servicing this beast in the tight, cramped, hot and dim engine room of submarine.
And... Under the sea after a destruyer dropping depth bombs D:
Or drowning If you didn't
You can try but you'd be dead in a matter of minutes from carbon monoxide poisoning considering its meant to power a u-boat that travels on the surface and not a sub that's operated under water.
@@joey_morg
They had snorkels that vented the exhaust.
@@joey_morg How do you figure that??? The title literally say diesel engine from a submarine U-Boat. 'U-boat' means "Untersee boot" -or- 'Under Sea Boat' and that applies to ANY German submarine. They only ran them on the surface so they could vent the exhaust and charge the batteries. But, yes...they can run them underwater as long as they were at periscope depth and the snorkel could vent the exhaust.
📢 Subtitle with translation is available.
These are the steps performed to start the engine:
0:08 - The young machine operator begins to pre-lubricate the engine.
0:32 - After reaching 2 bar oil pressure, the older machine operator turns the engine manually.
1:44 - The engine is turned by compressed air with cylinder taps opened to blow out water or oil, if present. The engine is still being pre-lubricated.
1:57 - The machine operator closes the cylinder taps.
2:14 - Water pump switched on (control cabinet in the background).
2:16 - Fuel valve opened.
2:18 - Injection pumps on filling: Probably, this means that the injection pumps are set to maximum as a basic setting (big wheel). The final fuel amount is set by the governer (small wheel in the background).
2:21 - Preheating
2:30 - Glowplugs are glowing.
2:34 - Engine start by compressed air.
2:55 - The machine operator checks the combustion by opening the cylinder taps shortly.
3:13 - Finally, he raises the RPM by adjusting the governor.
"100% volumetric efficiency " completely wrong use of the words. This engine MAYBE has a 15-30% volumetric efficiency at peak torque rpm; its hideous. The only way to reach or surpass 100% is to use forced induction or a blower at 0.000001psi. As it was running there it probably had a volumetric efficiency of about 1% maybe but thats a hopeful estimate.
Thanks for the startup procedure explanation, was researching for it and found nothing. I knew the younger guy was priming the system but had no idea why the older guy was cranking it and still dont really know. Even without rotating the engine oil still can travel through the valleys and into bearings so spinning it is pointless unless of course there were design flaws at the time (Due to not having tight bearing clearences), they would have to use valves to control oil flow to specific points in the engine; that would require rotation to lubricate all bearings. But the ones that would be dry would be the ones with open valves so the flow would already be going towards those bearings.
Has electricity for the glow plugs but made it manual ONLY for lubrication prime and turn over? Seems ridiculous to me. Would have been full electric start procedure. One button everything done on its own. WITH all the mechanical overrides (no power or malfunction in starting system)
A few simple electric motors and could have had the thing fired up in 15 seconds. Not 5 minutes.
Kyle Maes He said "injection valve timing to 100% volumetric effocienvy, wich in my opinion means nothing less then dethrotteling the injection pump ( Diesel engines have an either mechanicaly or electricaly actuated fuel valve, to stop the running engine). 100% volumetric efficiency, in this case, just means stopping the use of a device that decreases the original volumetric efficiency (for example a valve that decreases fuel flow or plain stops it). Also, i'm pretty sure that 5 minutes for the starting procedure of a marine engine is pretty notmal. As for the electric motors, the lovely thing about a fully mechanicle system is, that it will run under all circumstances, for example, what if the batteries are all dead? Lucky you, you have a fully mechanical system that can operate without any electricity (glowplugs are not nessecary, they just increase reliable startup rate). Even tanks and planes had a mechanical backup to start the engine without electricity.
Mechanical should always be a backup - I meant there should be an electric start option. When you are down in a sub and you need to GTFO and it takes 5 min to get the engine going you are long dead before you even start cranking it over.
"Injection valve timing to 100% volumetric efficiency" - I admit I misread so let me again explain how it is still wrong. I think he means "Injection valve timing set to 100%" or a specific degree to which fuel is injected to the cylinders. Has nothing to do with efficiency. Technically if the fuel lines dont leak anywhere and have fuel in it under pressure its always at 100% volumetric efficiency. The only time it wouldnt be is if it lost pressure, or had a fuel leak.
To quote a definition - "Volumetric efficiency in a hydraulic pump refers to the percentage of actual fluid flow out of the pump compared to the flow out of the pump without leakage. In other words, if the flow out of a 100cc pump is 92cc (per revolution), then the volumetric efficiency is 92%. The volumetric efficiency will change with the pressure and speed a pump is operated at, therefore when comparing volumetric efficiencies, the pressure and speed information must be available. When a single number is given for volumetric efficiency, it will typically be at the rated pressure and speed."
So by definition your hydraulic pump (fuel), actually loses efficiency as revs increase and gains efficiency as load increases. This in reference to the fuel system
However the real VE of the engine changes due to half dozen variables like atmospheric pressure, head flow, intake flow, exhaust flow, load, fuel consumption etc.
Kyle Maes Your right and wrong at the same time. Your definition of efficiency is completly right but i think you did not quite understand me. I meant that initial efficiency of a pump with a closed throttle is lower than the actual efficiency (100% of the actual efficiency). This does not mean that the pump violates any thermodynamic law, it just means that you don't have 100% of the actual efficiency, when the throttle is closed (due to the throttle). Like an engine for example, if the throttle is closed, the efficiency of the whole system is pretty low, with the throttle fully opened, the efficiency os at the highest point (little fun fact: old race cars and bikes used to have type of throttle that is completely retracted from the intake manyfold, when fully opened to ensure maximum efficiency). Correct me if i'm wrong but as i learned it throtteling a pump means decreasing it's efficiency (because of pressure loss).
wowie, you guys are getting deep and technical with things XD
Он работает тише чем у меня на тракторе!))Класс всегда уважал немецких инженеров!!!
Супер миханик стприк подстать настройщику рояля
Немецкие то инженеры тут каким боком? Немцам тогда такие штуки разрабатывать Версальский мир запрещал, они эти разработки по всему миру заказывали, у голандцев частенько.
Великолепная работа дизеля! Мягкий рокот,работает даже на оборотах примерно 300 об/мин.До чего же приятное урчание.Спасибо автору за ролик!
Я учился в мореходке. На втором этаже находились кабинеты, а на первом, все было именно также. Можно было на практике запустить дизель, котел обогрева и поочие механизмы. Все здание аж дрожало когда дизельзарускали и он там был не один, ЧЕТЫРЕ, все разной мощности и марки👍
@@sleepmnan22sleepman50 20 лет назад я получил диплом электромеханика
I could listen to that all day. If you've never worked in or around a diesel machine you'll never understand it. A diesel engine, from the moment you start it, is just begging to run. The sound of it just tells you it wants to work and work hard. Raw power. Fun to be around. Great video
Rich Dipre I know the feeling! I used to work around tractors and trucks but haven’t in years. There is just something about Diesel engines that just warms the souls
not im my sodding volvo v50 turbos blown up lol no sinking allied shipping in my car this week~!!
It is Raw Perfect German Engineering. I wish we had more of it in this world...
We used to have a BMW 5-series estate. With a 3.0l 6-cylinder Turbodiesel engine in it. I loved it! It was an E39, late 90’s early 2000’s. The last decent gen of BMW’s ever made!
We had the car for 13y, it did 300k and the engine never has any issues.
When it was really cold, we used to turn it on to let it run before we left. I sat in the car on the passenger’s seat and just enjoyed the sound. And feel.
The car was fully specced out. A 100.000€ highway munching machine. With a black buffalo leather interior. And double glass.
I sat there, in the dark, only illuminated by the car’s orange lighting from the dash and the buttons. A small kid in a big leather seat. Listening to the soft rumble of the low-revving straight six that was warming up.
I loved the orange lights. Very soft on the eyes in darkness. And it looked very impressive!
But it pulled like a beast when it had to. 450Nm of torque. Not bad for such a small vehicle.
It even made so much torque that it tore the gearbox to shreds. A known problem with BMW’s of that age. The auto-box could not cope with the torque... big design flaw, but it was the only one.
@@DIOSpeedDemon that's just what Hitler said before he blew his tiny brain out
Вот это я понимаю музей. Действующий экспонат, а не крашенный пластик под стеклом.
А как работает четко!
И слаженно...
Жаль что запустили лишь на зжатом воздухе.
@@dvadva7 Его запустили сжатым воздухом. А не на сжатом воздухе. Он же всё рассказывал. Посмотрите внимательней.
Смахивает на дизель тепловоза по звуку
It is so awesome to see every step and how they both know what to do and each step is carried out so professionally and how you've explained each step and how beautiful that engine sounds how well it is cared for it is a wonderful tribute to those who would have been operating and maintaining the engine during the war so much of the knowledge and skill and professionalism has been lost today sadly
And.
That engine looks complicated but runs like a swiss watch beautiful piece of engineering thx for sharing
My german Grandfather from the other room: *gets out of chair* "It is time."
it’s like music to the ears
Wonkabar007 Pump pump pump pump Clatikiclank Clatikiclank.... Rrrrriiiinngggg...... Broom broom.... Chuga chuga chuga chuga....... Psshhhh..... Psshhhh..... Chuga chuga chuga...... Where is the Beer Chief?
always running
Wonkabar007 YOU BETCHER LIFESAVERS!!!
like a song and a dance... and a bell.so interesting
i was going to comment that
Imagine being the young lad in the belly of the beast. Your job wasn't to control the ship, to feed your comrades, to arm the weapons. Your job was to ensure the engines were running properly. Your only lover for months on end were the engines. You understood them, and they understood you.
Herrlich das klingt wie Musik in meinen Ohren einfach ein Phantastischer Sound deutsche Wertarbeit eben .👍👍👍
A beautiful piece of German industrial art. Plus, music to my ears when it runs.
They had some good ideas the Germans. Some real good ones.. Misunderstood in the end..
@@johncitizen7362 misunderstood???
В Узбекистане в Ташкенте на бурджарской ГЭС стоят 3 генератора с времен великой отечественной. Эти генераторы были сняты с немецких подлодок. Они до сих пор работают. Они внушительный размеров. Вот вам немецкое качество! А ведь сейчас 2021 год!
Раньше все на века делали. Не то что, сейчас. Погоня за деньгами!
@@user-jn4yk5we2m действительно, зачем деньги, когда есть восточные рабы и фюрер рассказывает сказки. Все ради будущего Германии. Только в нем не было бы нас.
@@kotopsina но это не точно. ведь это все фуфло и пропаганда.
@@himmyuser и газовые камеры пропаганда? , сумочки из человеческой кожи, дети с которых кровь сливали для солдат вермахта, убийства коммунистов, славян, евреев? Рассовая теория, вызженные села, деревня? Это тоже пропаганда?
@@user-zq2nj4kz3w Да кому вы объясняете, это же дебил малолетний.
It's amazing to see that things start and run and all the work going into it to keep it good.
You will never be able to replace that old guy's knowledge.
You always find passionate people for this stuff.
Lots of close ups of this type of engine running in the movie "Das Boot". Loved that film.
Yeah and me, it's one of my all time favourite films
One of the top and most realistic war films ever. Well worth the watch of the epic, 3 hr version.
My dad was in the RAF in World War Two. Never the less what an absolutely beautiful sound this engine makes.
Another beautiful sound is of the Packard Merlin ❤
That engine is considerably quite honestly for being that big and old pretty crazy man
Those diesels ran like clockwork. They appear to be very balanced motors.
inline 8
@@Hugo-um8nh Inline 6.
Inline 6 engines have practically perfect primary and secondary engine balances, no other engine has this. (apart from a v12 I guess but that's just two inline sixes :P )
if theres one thing germans know how to do is run shit like clockwork
Run like clockwork but starve and freeze to death on the Russian Steppes in their state of the art Tiger tanks holding their fancy STG.44s. Or drowning in high tech submarines because they couldn’t figure out how to use Enigma properly (it’s unbreakable without the cipher key provided you don’t do dumb things like repeat words, always use the same words. use the same key twice, lose your key book, etc).
Я в час ночи с глазами как две пуговки на холодце, смотрю как запускают двигатель на подводной лодке на немецком языке, спасибо ютуб за отличный досуг!
Эстафету принял.
@@user-pw3ts6bj3k и я🤣
@@chashkavitek и я))
Принял
Принял✌
Its so quiet. A beautiful piece of history.
Still running 💪 & like butter! Really glad they saved this awesome piece of history and engineering!
"Not yet, Kameraden! NOT YET!"
Das Boot?
Ja, wohl.
Shnellah, SHNELLAH
To a U boat engineer this is what you had to listen to when the boat was above water.( there were two side by side.) with a.walk.way.between them. Under water the U boat ran on battery powered engines./ this is how all WW1 & 2.subs ran. UNDER VASSER BOOT, or Under water boat. U - boat.
That man is like an orchestra conductor. Bravo!
Incredible, i could spend all day watching this stuff in person.
MWM marine engines are truly amazing. Mechanical works of art.
Makes me want to watch “Das Boot” - love ‘ole Johann and the magic he makes with that cantankerous engine
Brilliant film.
another screenshot going to the "movies I need to watch" folder
@@ivanemilov522 Das Boot
It’s epic (kinda slow in a good way at times) - but epic, and well worth the watch.
My favourite film
ALARMMM... Best ww2 ever .My hat off to the German kriegermarine. You fought like lions.Karl Doenitz.
Дедок красавец, как дирижёр. Запустил, настроил, а звук дизеля, просто шедевр. Он знатный моторист похоже..
Папа наверное у контрадмирала Дёница служил))
Немцы они все знатные мотористы
Запуск примерно как на нашем т55
Блин ждал когда газонут, негазонули.
@@strogg59 😂и не говори
I don’t know why but Diesel engines always sound great and reassuring.
I love watching old diesels, especially slow speed diesels.
Beautiful sounding engine. Runs like it was built yesterday.
It’s just amazing to see the engineering and precision that people were doing 75+ years ago, with tools that can not compare to what people use today.
This was a production engine, they were making tons of these! Just amazing example!!
Thank you for your video!
brilliant video - excellent engineering here without doubt. It's always funny how some of the moving parts (push rods, valves etc.) are exposed on these larger engines. Many thanks
A thing of beauty is a joy forever!
Technology has definitely improved. I tried installing one of these in a 17’ runabout and it submerged way quicker than a ww2 submarine.
"Every boat can be a submarine...... once"
I love the sense of humor. Thank you.
@@mrdumbfellow927 Same as the mushrooms. They are all edible ... once.
@@mrdumbfellow927 every ship can be a minehunter at least once too!
always one
The fact that this engine was built 80 years ago is incredible
Its probably stronger and more reliable than the new ones
Try to find anything modern that'll last that long. We build crap nowadays
Diesel power
I got a 49 yr old 4 cy all I have ever changed was the oil
And its still running
This is a thing of beauty. From what I can see he put it on half compression to start with and appears to have pneumatic start. Really beautiful to watch
Them Germans don't mess around when it comes to engines. 👌🏻👍🏻
Will run for 200 yrs or more. Diesel engines were one of the more
Magnificent inventions
Of our time.
Sure will run for many years. I was mechanic when yi was a young man,and i had passion for this huge engines,,and today for diesel locomorive engines.
Diesel engine was invented in my Dad’s home town of Augsburg, Germany. 🇩🇪
Frankie Pitochelli Diesel engines are the the ruin of everything. Diesel pollution is a huge problem
LinkinPark4Ever1996 great another tree hugging lefty 🙄
oh so polluting is good?
Is anyone else amazed at the simple genius of that cranking mechanism on the flywheel?
Try doing that when indicator cocks are closed. Haha!
No wonder British destroyers were able to find them with that bell!
"Sie lääääuft... " "Ja...dann sag mal dass Marmelade keine Kraft gibt!" ;-)
Ко всему подход прям на заглядение...звук мотор благородный,спасибо автор за видео...приятно смотреть на механика знающего свое дело...
Возможно Вы правы! Я про: "механика знающего свое дело..". Особенно, когда наверное служил в Кригсмарине у адмирала Дёница.))
@@user-mf3gj4dr6u ну и молодец он тогда
Виталий
А у механика (вообще томоториста) имя нет? Это же Ефремов Михаил смежную прффесию осваивает,настоящую мужскую!!!
And here ladies and gentlemen we see a German in his natural habitat - around large industrial machinery.
Emilie. ELINDBÉRG"
They will march again
Best comment in years
They are natural engineers and technicians...a brilliant people.
Interesting to consider that in the modern world, men depicted in many movies and other entertainment media, if they are not killers, are basically doing wimp jobs. They push paper in a skyscraper in NYC, they are lawyers, the work at things that are sans anything mechanical. In the real world, many men work with their hands doing productive things, making a living, with never a break in employment. I spent almost 40 years doing mechanical work, and never had a time I was not employed. I've seen a lot of college liberal arts education graduates behind the cash registers at places I have gone, but never a diesel mechanic.
I never get tired of that video. Amazing engineering 🤩
Смотреть приятно,как в фильме U-571,как Германия умеет делать технику!!!👍🏻
И Россия умеет. То что Спасительно для души. Брабусы и порше врядли
Немцы исторически еще те извращуги, заметьте, что все страны с сильно развитой экономикой, очень давно страдают от самых разных технических и социальных извращений. Из последнего, что мне попалось - у Ауди Q8 совместили стартер и генератор 2в одном. Внутри контроллер уровня айфона, конструкция НЕ разборная и НЕ обслуживаемая, на рубли стоит 250.000р! Карл! За стартер+генератор!
@@vitmast5262 , - водка, балалайка, матрешка !?...
@@MrShrack огласи возраст свой мамин памперс.. И в скольки странах жил и вкалывал.. А также количество прочтенных глубоких книг
I need a longer version of that sound. It is incredibly calming.
Diesel engines and cat purring are supposed to be the same frequency. Diesels on boats used to put me sound asleep no matter how rough the water.
Now i am going to watch Das Boot!
Cigarmann fuck yeah me too. My favorite submarine movie
Cigarmann You wouldn’t see this engine in Das Boot, it was only used in the late war type 23 boat.😫
I thought we would see Johan, the Ghost, attentively adjusting and fiddling with the engine here.
Bobby Lee don't care.....watching Das Boot anyway!
I'm going to dive on a boot off Jersey.
Молодцы немцы. Самая крутая нация. Красавцы. Просто нет слов......
That is a beautiful engine. Very quiet and smooth.
Whilst I expected the engine to work, I did not expect it to sound so healthy after 70 years. It purrs.
That's german engineering for you!
@@mrdemoncrusher3927 or a reconditioned and well maintained piece of equipment..
Genuine U boat diesel engine came from a scrapyard and was used in DasBoot
What a perfect technology from these German Engineers, the sound of this engine is like harmonious music. Greetings from Brazil.
Wir haben unseren Diesel immer nach dem Systhem W.O.L:K.E. Startklar gemacht, ist (Wasser Öl Luft Kraftstoff Elektrizität) und haben die auch vorher mit geöffneten Dekompressionsventilen ohne Kraftstoff durchgeblasen. Damit sollte ein Eventueller "Wasserschlag" ausgeschlossen werden, welcher zu einem total Motorschaden geführt hätte.☺ Tolles Video
This shop reminds me of the Machinist Mate 'A' school I went to in Great Lakes, IL. There was an ancient steam plant we were trained on.
The sound is hypnotic, a kit of undertones... The breathing of an old machine
Это просто чудо механик.
Уважение! старейшинам ручным управлением судовыми дизелями.
С уважением!
Если к нему безперебойное поступление топлива и запустить, то он сто лет будет кла, кла, кла, кла работать.
Этот мастер может учить молодежь. История развития механизмов очень важна, для формирования инженера -механика!!!
@@sergzerkal1248 Согласен. Дед любит машину. Она и в самом деле хороша.
Да почти такие же дизели (9Д) в ходу были года до 15-го (не знаю, что сейчас с флотилией КЮМа). В управлении такими агрегатами ничего, в общем, сверхъестественного нет; все сколько-нибудь сложное - в разработке.
@@szt1980 сударь, это как посмотреть! Давайте сейчас кого ни то с улицы возьмём и управлять агрегатом поставим и долго он будет "на ходу"? Мой отец говаривал, что дисциплина "Теория машин и механизмов", для механиков очень важна! Конечно разработка конструкции это полет инженерной мысли того времени!
Germane
superstar! Эхо войны! Мы Русские,всё равно уважаем вашу технику,особенно подводные лодки времён второй войны,не смотря на гибель всех солдатов!
В 1976-м году на практике на моём первом буксире 10-го проекта Сормовского завода 50-го года рождения стояли такие "букашки" (от названия завода-строителя "Bukau wulf", позже "SKL"). Знаменитые ГДР-овские судовые дизеля типа 6NVD36, 6NVD48.
*Everyone gangsta until German restart WW2 Submarine engine*
Das boot
Might as well restart the cold whar
@@user-po8te9lt2v czcams.com/video/_KIl8-GADyE/video.html
alpacino numere uno
They lost.
Der Mann liebt jeden Zylinder. Toller Typ
So wie Johann, das Gespenst...;)
@@ronnybrowning8319 So wie Ruiner, seinen Luan.
Thanks a million pal, i was stuck in the middle of the ocean, found a phone in the storage and saw this video. Thanks!
Deutsche Qualität. 👍🏻👍🏻❤️🇩🇪❤️💪💪💪
@andrew Herriges , und Wernher von Braun
🇹🇯🇹🇯🇹🇯🇹🇯💞💓💓💗💗
I agree.
@stephen galley If you were bringing a girl on a date, would want to pick her up in a Toyota or a BMW?
@stephen galley Mercedes Benz?
Germans : some of the best engineers the world has ever seen and will continue to produce. 🇩🇪
Now being replaced by Somalis, Nigerians and even a few Syrians.
Let’s hope electricians as well, or Tesla picked the wrong trees to cut down.
@@andyphillips7435 hahaha
@@conveyor2 Nigerians? What are you smoking?.
Prantera Naud Germany now makes even better marine engines,there is a company called MTU Freidrichshafen,very reliable engines.
Error 404: Ear Protection Not Found
the dude covering his ears is the same dude you see driving alone with a mask on
This man takes great pride in maintaining this engine in perfect working condition.
What a beautiful piece of classic German engineering!
Russia engineering fuck German 1945 ;)
@@atamah7774 Russian engineering? LOL it's like comparing a Yugo to a Mercedes