Ducati Elenore V8

[drnickriviera]

http://thekneeslider.com/archives/2010/10/01/ducati-elenore-868cc-v8/
😵

That is one funky engine

 

[theeedude]

That is awesome, looks like it both pushes and pulls on the crank arm.

 

[Howard]

holy low rod/stroke ratio batman

 

[IcePickFreak]

Pretty interested to see how that works out, seems like timing would be very crucial. I wonder if the CR is the same between the cylinders attached to the connecting rod vs those only attached to the pivot arms.

This must be that one guy's buddy who was asking a few weeks back about getting funding for a 300% more efficient engine design. 😀

 

[JulesMaximus]

Man, I can see that being a bitch to work on and expensive for routine maintenance...the latter being a bit of a reputation that Ducati has been trying to shed.

 

[angry hampster]

How the hell does it stay balanced?

 

[MagnusTheBrewer]

How the hell does it stay balanced?

Massive infusions from your wallet of course.

 

[dawp]

guess he never heard of 'keep it simple, stupid'. that is complex and has a lot that can go wrong. might be fine for a race, one off but I would not want it on my bike.

 

[punjabiplaya]

interesting idea - that's about it. Unless they can prove it to be very reliable and adaptable, then we're all wrong.

 

[WackyDan]

BAh... look at the diagram... Same crank as the Dukati twin using heads from a 125 cc bike.

If you look at how it fires, all he did was make a v8 that is essentially a big twin... He'd have been better off building an engine from the ground up with bigger bores... At the end of the day, all he has is 8 cylinders, still acting like twin cylinders, turning a twin crank. Seriously... look at the diagram and you'll get my point.

I bet the EPA wouldn't approve. 🙂

 

[halik]

wow so much inertial mass, that thing won't be able to rev much. Neat hack though.

 

[angry hampster]

dammit wrong thread

 

[LordMorpheus]

wow so much inertial mass, that thing won't be able to rev much. Neat hack though.

I see less internal mass.

Instead of four connecting rods, you've got one connecting rod, two small rockers, and four tiny little connectors to the rockers.

What is also interesting is that (assuming the cylinders that are in phase with each other are a half-cycle apart) you will always have one cylinder on it's powerstroke, so the connecting rod will always be doing useful work.

I don't see why this thing couldn't be an awesome engine.

 

[IcePickFreak]

I see less internal mass.

Instead of four connecting rods, you've got one connecting rod, two small rockers, and four tiny little connectors to the rockers.

What is also interesting is that (assuming the cylinders that are in phase with each other are a half-cycle apart) you will always have one cylinder on it's powerstroke, so the connecting rod will always be doing useful work.

I don't see why this thing couldn't be an awesome engine.

He said inertial mass. A pivot arm like that isn't exactly an efficient way to transfer power, kinda why overhead cams came along.

For some reason it reminds me of the theoretical large propeller with smaller propellers on the tip of each blade.