Strangest Engines Ever Built

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[willb]

That Lanz Buldog with it's Hot Bulb was incredible! Next to it the beautiful Square four - that was a fabled engine even when I was a kid. Aerial made some really advanced bikes and engines: water cooled, Shaft drive, belt driven all way ahead of the time. But for me the Lanz for the win.

[mikehudick]

That lead-off Porsche motor is NOT a four cam motor as the description leads one to believe. It's a typical pushrod motor of 1500/1600 cc displacement,

[archstanton_live]

"I see angels on Ariels in leather and chrome
swoopin' down from heaven to carry me home."

[richardvaughn]

The lanz bulldog, as a hot bulb 2 stroke, is capable of idling at 0 rpm.
This is because fuel is injected at BDC. So basically with the throttle adjusted so low that the engine cant overcome compression, it bounces back and forth between TDC in each direction (the engine reverses back and forth never making a full rotation).
The fuel is injected into the hot bulb (a heated area that both vaporizes the fuel and causes the white oil smoke to start burning) where it combusts from high heat and compression where it shoots through a tiny hole into the cylinder which causes the piston to move. The tiny path between the hot bulb and the cylinder causes restriction which makes the pressure increase rapidly because of the vaporizing and burning oil which causes the entirety of the fuel oil to combust.
This allows a hot bulb engine to have the pressures required to burn fuel oil without needing a high compression ratio. The time it takes for the pressure to build in the hot bulb and move into the cylinder means that the engine has to be designed to run at a limited rpm range.

A diesel engine is a modern alternative that uses high compression (double that of a gasoline engine) and injects the fuel using high pressure at TDC into the hot compressed air which combusts it.
A diesel can be started cold, but a hot bulb engine needs to have the hot bulb heated cherry red for 10 to 30 minites on even a warm day before it will start.

[Baard]

At 3.30: we love carbonmonoxide love the smell of exhaust gasses....

[vickpena]

number 1 is just a vw aircooled engine with doublé carburetor.

[nonyadamnbusiness]

"Strangest Engines Ever Built" and the first video is a Type I VW; one of the most common engines ever built.

[klesmer]

That first strange engine is a plain old VW with dual carbs.Looks like the one in my 67 Beetle.

[Albertosalat]

The porsche engine in the video is a normal 356 engine, is pretty common, like the vw one. The carrera engine is the one that is rare

[wernerfeil]

Der Jumo 205C bei 2:54 und der letzte Motor sind wohl die

[shanehnorman]

The segment on the Porsche Fuhrmann, said to be a DOHC engine, shows what looks very like a VW OHV. It could be SOHC, but, even then, the valve covers don't look roomy enough for a camshaft.

[catjudo]

Aircraft engines which held the crankshaft stationary while the cylinders spun around it weren't uncommon 100 years ago. At that time they were fairly common, and among other things they were easier to keep cool in operation.

[baggieshorts]

Nice video... just sometimes move the camera away so we can see the whole motor... not just bits.

[dougharvey]

I love that comer knocker motor, just seems so smooth : )

[chucki]

That square four engine is pretty interesting, like an upright V4. That Gunbus 410 is a monster to put out 523 lb-ft of torque, and still be a two stroke.

[brucerogermorgan]

You left out the Napier Deltic, which has to be one of the strangest engines made. It's a 3 crankshaft version of the Junkers, and was famous for powering Brirish Diesel-electric locomotives for many years. Strange engine, but it worked!

[upsidedowndog]

SOHC Ford isn't that strange, just ahead of its time. These others are flat out strange for sure.

[joshhayl]

At the very end of the video is a VERY abrupt and EXTREMELY Loud noise, it only lasts for a moment, but Heaven help you if you're wearing headphones! It took three of my friends to peel me off the ceiling, after which, both of my eardrums now reside in the center of my head!

[jimfling]

The volkswagen 1500cc engine shown is NOT the the 4 cam complicated engine they are talking about. It's a plain VW pushrod engine. The 4 cam is a much more elegant engineering masterpiece.

[blackpool]

The commer knocker seems very smooth running for a two stroke diesel