From Wikipedia
Diesel engine runaway is a rare condition affecting diesel engines, where the engine goes out of control, consuming its own lubrication oil and running at higher and higher RPM until it overspeeds to a point where it destroys itself either due to mechanical failure or engine seizure through lack of lubrication. For instance, a 1800 rpm engine can run to 4000 or 5000 rpm or beyond.
Several ways to stop a runaway diesel engine are to block off the air intake, either physically using a cover or plug, or alternatively by directing a CO2 fire extinguisher into the air intake to smother the engine.[

What are you talking about, both the penis' behind the wheels of these vehicles are probably American. Someone just fucking hates America(n).
Outmatched vehicles:
553 ft.-lbs. of torque at 2000 rpm and 310 HP (18:1 comp ratio w/dual-turbo chargers) with the Toureg

520 lb-ft @ 1,800 RPM- 6.6 liter w/300 hp @ 3100 rpm with bouncy there-

While both seem matched, the VW's the real piece of work.
Engineering be damned, the Germans pretty much extended their penises farther than any country with their fucking master -race shit.
Got to hand it to the insect-like attention to details, though....after WW2, a shitload of their engineers came to the U.S.

So, buy a Mercedes Benz and enjoy it....great car, until you need repairs...Ka-Chiniig!!

The thumbnail image for this video has been updated - thumbnail added by oritteropo.

The thumbnail image for this video has been updated - thumbnail added by oritteropo.

The thumbnail image for this video has been updated - thumbnail added by critical_d.

and 2500 rpm is all on that rev... thats crazy

Although it is a formula race car, it's not formula 1. It's actually a Formula BMW race car used at the Nurburgring (Nürburgring Formel Super Racing). Here are the specs from the website:

Formula BMW
Engine: 4 cylinder, 1,200 cc
Maximum rev: 8,200 rpm /
Chassis: Carbon monocoque
Power: 103 kW, 140 hp
Weight: 465 kg
Transmission: Hewland sequential 6-speed

Still, a very cool video.

>> ^sillma:

Yeah, that clip could've been about minute and a half shorter.


No kidding. Skip to the end.

Even in a straight line, I think the hollow wheels are what seriously limit its speed because the inability to drive at the axle produces a critical mechanical disadvantage. There is no room for any gears that are larger than the wheels, so the engine must always run many RPMs faster than the outer edge of the tires. It's why, on a bicycle, the gears mounted to the peddles are always larger than the gears mounted on the axle of the back tire. So, yeah, it's basically a kinetic sculpture--but still a really cool one!

>> ^robbersdog49:

What's limiting it's speed is a complete inability to lean more than a few degrees. Great piece of art, but it looks completely un-useable.

Fuck gravity, HOW DOES THIS THING WORK ? How are they not tangled, its like they are dancing while spinning at High rpm.

That tampon sure has a lot of RPMs.

I'd really like her to see her try this on a higher difficulty to a high RPM song like Max 300. Right now this as impressive as watching someone playing the violin while jogging, it's nice to see her play the notes according to the notes of the game though

Im not yet convinced that the planet gear doesnt cause lots of imbalance and thus make this transmission useless on high-rpm applications.
However, if it really works, I want one made for my car! And the funny thing is, those made custom for older cars wouldnt even cost that much, since its an extremely simple construction, unlike conventional transmissions.
Custom made sequential gearboxes for $75,000? Forget it. This one would wipe the floor with em and would only cost a fraction!

This discussion does bring up a few good points..
http://dansdata.blogsome.com/2010/05/16/todays-mechanical-conundrum/

He is correct about the fact that the output shaft can not spin faster rpm then the input shaft. But hypothetically you fix gear some ratio that makes highway driving efficient, but that could be a major problem.

Also, I realized that even though the output shaft can be reversed, it occurs to me that the action of reversing the output is driven by rotating the sun gears in reverse, which I would think means the secondary motor is then applying the torque, and probably means in wouldn't be good in a car.

Of course that doesn't seem right because if you are working to 90% of the input speed (secondard motor is moving at 10% of inputs rpm) does that mean that you lose some torque..



Also I think the comment about tank tracked system is interesting. You could then put the full motor output on both shafts like a tank does on the tracks.. But you shift the power from primary to secondary and eliminates the electric motor issue. ie. neutral is equal power (at any rpm) to both inputs. And full reverse is all on A and full forward is all on B.

>> ^robbersdog49:

Hmmm. Much as I'd like it to be true I'm still not convinced the extra energy needed to control the control shaft is going to make it better than the systems already in use.
I'd like to be surprised though.


There isn't extra energy... it isn't like the second motor needs to drive any power... The second motor only has to spin gears. The only work the second motor does is drive the elliptical gears which are in bearings and overcome friction of those teeth and moving the mass of the gears.

Imagine this scenario, a motorized skate board that is powered by a little engine. On top of that you have a deck with a worm tooth gear that moves the deck forward or backwards. So while you are moving forward at a constant speed the second motor moves the deck backwards (so you are moving slightly slower, like walking to the back of the bus while in motion).... It's like that but inside the gears so the second motor spinning will reverse the apparent motion. All the real power is still on the first motor.

The real problem seems to be you would need a mechanical neutral as your secondary motor would have to exactly match the drive rpm (or whatever ratio) in order to not move.. then you slow the secondary motor to increase the output shaft speed.

Another real benefit is that the drive motor can run at any rpm and you just match it with the secondary to stay still.. So you could go 5mph in idle or 5mph at top engine speed. The drive motor rpm - secondary motor rpm = motion and you can just pick whatever rpm delivers the torque you want.