Toroidal Opposed Piston Engine

[frankydevaere]

another approach

youtube : watch?v=AM335uWoYBQ

[NeilBlanchard]

Frank, I'll link to the video for you:



Interesting; but I'm not clear (yet) on what advantages this would have? The cylinders and pistons and the levers look to be quite complicated to make.

[Old Tele man]

...cylinder sealing looks like it'll be a nightmare task.

[frankydevaere]

Originally Posted by NeilBlanchard

Frank, I'll link to the video for you:

Thanks, for the link

I thought it also until i spot a film of someone doing it , making a copy of the 4 stroke Wolff-patent : youtube watch?v=cSOzSKxtWzg

currently i have actually built a second generation , and improving it to run as HCCI as mentioned in a recent Dutch article. this movie is open source, kind of a warm-up.

still have 4 posts to do, to be able to put some links

sorry for my basic english

[arcosine]

Piston pins don't have much friction.

TARDEC Opposed Piston Opposed Cylinder 2-Cycle Diesel Engine

[Frank Lee]

I'm sure I won't have one in my car in my lifetime....

I'd like to see the corner machine shop bore that out for oversized pistons and rings...

The mass of the "rods" appears.... massive. TWO pivot points are present in addition to the rotating points on the crank so there's likely more internal friction/piston assy than in a conventional layout, plus all that "rod" mass needs to be accelerated and decelerated every cycle. If it runs at all it'll be slooooow.

[NeilBlanchard]

Here's the second video:

[frankydevaere]

the Russians are going hybrid - toroidal, thy put millions of dollars in it.

youtube : watch?v=4YbFr3bErhY

[Jim-Bob]

It's like a more complex version of the Commer TS3, AKA "Commer-knocker". That didn't work out too well and I suspect this won't either.

[NeilBlanchard]

Here's Frank's link:



Boy, there are no easy answers, that's for sure. Toroidal cylnders have got to be 5X harder to make than cylindrical ones, and the same goes for toroidal pistons...

These two in this thread are still oscillating, so even though they are toroidal, they are not rotary. The Garric engine is the only toroidal engine that is also a rotary, as far as I know.