M.A.N. U-boat diesel engine Running

Running M.A.N. WW1 diesel egine at 375 RPM producing 430 HP. This is a world war 1 U-boat engine build in 1917 by Blom & Voss in Hamburg to operate in a german submarine. However this engine never made it into a U-boat as the war was running to an end. The engine was stored en transfered to Holland during World War 2 to operate as a generator egine in a water supplying company where it was producing power up to the 1960's.
It's a four stroke engine with six cilinders and a overhead camshaft. The exhaust valves are water cooled. Attached to the engine is a four step, high pressure air compressor which provides about 80 Atm neccesary for the diesel injection as common fuel pomps where not developed yet.

Category:

Science & Technology

Tags:

• U-boat
• U-boot
• old
• diesel
• engine
• motor
• onderzeeer
• MAN
• WW1
• load
• testing
• oude
• motoren

[johnster1964]

There is one coming up for sale - look at the vintage engine section in the catalogue of Hermann's Historica (goole will take you straight there) Euro 40k !!

[dmreichwein]

@johnster1964 Thanks for sharing this. Very interesting information to read on the history og WW1 u-boat engines. I doubt if this one will ever run again however.

[mgkeoh]

They were know as petcocks. They could check the combustion flame by working with a sort of two colour visual guestimate. These engineers were real experts completely tuned into their engines. If there was a slight change in sound they would notice it straight away, even as the boat climbed up a waves where the rpms on the screws would change under the load and weight of the boat. Long live the Diesels and long live the experts who are making all these project possible.

[GBFclan]

WHAT ? I CANT HEAR YOU WAT DID YOU SAY  ?

[Dualshock21]

It looks complicated 

[Jeansschwimmer]

@aleu650 Why not: low compression and low revolutions: That is why it is still working.

[Jeansschwimmer]

@granddad2002 Compression was lower than today and the volume of the cylinders is bigger. All those early "oil engines" run very smooth and silent, but the ratio between horsepower(kilowattt) and their weight is of course somewhat steam-engine-like

[Jeansschwimmer]

@mrspivvy Rudolf Diesel wanted to build the perfect combustion engine. As the temperature of an expanding gas drops together with its pressure, he even thought his principle would work without cooling, resulting in a high thermal efficiency. He was wrong about the cooling, but his engine make more of their fuel than petrol engines. Depressed from overwork Diesel committed suicide in 1913. In 1912 the "Selandia" was the first big merchant ship with Diesel engines.

[Landotter1]

Man, is that cool or WHAT??? Wonder what the diameter of the piston is.....

[Squarerig]

Befinden sich diese Motoren in einem Museum und wenn ja,wo liegt es?Vielen Dank fuer  den Film.

[crankbv1]

Think about this...ln their day,these engines were designed and built to run continuously 24/7 if required. Mid Atlantic there are no lay-bys or recovery services. Any major breakdowns and you were stuffed. The electric motors might give you another 8 to 10 hrs at around 9 knots before the batteries died but no more. The lives of every man depended on those diesels keeping turning..and this in 1914-18.

[crankbv1]

lt's so unfair to say that this WW1 engine is a piece of crap and comparing it to a WW2 Detroit motor. lt's like saying that Sopwiths and SE5s were crap planes compared to the Spitfire or Mustang. MAN diesels were and are amongst the most respected motors in the world...ask a long haul truck driver. lt should be remembered that Diesel was German and perfected them well before we did. So let's give credit where due. By the way...they didn't normally dive on Diesel power.

[jrw6137]

GERMAN ENGINEERING!!!

[MegaBartSmart]

lol what a low speed piece of crap........the usa wwII subs where the best the 2 stroke GM Detroit Diesel is the only way to submerge