Comments on: Peraves SuperBallMotor – Rotating Sphere 4 Stroke Engine

By: Latvian

Latvian — Wed, 14 Jul 2010 14:50:07 +0000

Wery big friction surface and only 1/4 torq of full spin. i think that fuel does not burn fully until it is excaused.

By: Quadruple

Quadruple — Tue, 27 Oct 2009 09:11:55 +0000

I can smell something wrong for this concept… because up until now, why there’s no attempt to make a physical prototype of it? You know.. a real-life 4-stroking mechanism.. machining is not that difficult though.. material doesn’t cost u 100 trillion.. so.. why not?

By: Kelly

Kelly — Mon, 13 Jul 2009 20:13:41 +0000

Interesting motor design. A couple of others that have some merit:

http://www.rkm-schapiro.org/ – a slightly different direction than wankel… has some potential, I’d say.

http://www.epindustries.com/cemco.html – a not-really-new idea that has some issues that still need resolving before it can be a viable engine. Makes a great pump, tho. One company was intending to produce a similar design for aircraft engines… can’t recall the name ATM…

By: scritch

scritch — Fri, 10 Jul 2009 19:20:36 +0000

Yeah, it’s cool. But I agree there could be some problems. I guess the seal technology from the Wankels could be adapted for the combustion area of the engine. Seems like the combustion heat and waste products might be very abrasive to the seals, but Wankels work pretty well these days…

I don’t see lubing problems, just squirt in oil around the outside, and also pass some through rotating unions in the crankshaft. But cooling, though. Maybe pass coolant through similar junctions in the crank, and of course, all around the cranckase.

But how do you bore it oversize as it wears? And how about wear in the grooves that the little ceramic balls run in? Can you machine the grooves oversize and get bigger balls (don’t you wish)? No small-town machine shop is going to tackle this engine!

By: FREEMAN

FREEMAN — Tue, 07 Jul 2009 05:39:44 +0000

@ Azzy:
I hear ya. I just think such a concept engine is exciting because it could really revolutionize ICE engines as we know them, if indeed it ever comes to fruition.