I thought this looked cool, figured Id share.
I cant see it working particularly well but its a neat idea

Energy transference won't be delivered entirely in the correct direction by the looks of it.

Also, wont this result in a shit-ton of friction?

This post was edited by Mtgtopdeck on Oct 25 2013 02:17am

ya what is stopping these from creating some sort of play and causing collisions between each shaft.

Engineering wise, producing one of these would be a nightmare. Having it run for long would be even worse.
Its just a cool idea.
You could probably leave a couple thousandths clearance but you will lose compression.

Friction depends on your clearances I would imagine. It would be similar to a roots style supercharger, how are they with friction? You would want your shafts geared and timed so they are spinning WITH each other and not driving each other. That would reduce friction.

It depends on the lobe shape. The new Eaton 3 lobe design and the new whipple produce very little friction. The tvs2300 on the ls9 makes 350tq at idle. Very efficient. The older designs not so much.