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  Topic Review (Newest First)
06-16-2016 08:59 PM
GoFaster Interesting.

And then my engineering mind starts doing some analyzing.

It might not be a Wankel - the geometry is "inside out" - but it shares some headaches with the Wankel and has a few new ones:
- Poor combustion chamber shape with a high surface area to volume ratio ... lots of heat loss, lots of combustion quenching, means lousy efficiency and high HC emissions. Same situation as Wankel. And that alone means this will be a non-starter. But pressing on regardless ...
- Tip sealing. Same headache the Wankel has. The tip seals have combustion chambers on both sides of them and lubrication nowhere to be found ... unless it comes in with the fuel or is pumped in and the engine runs "total loss" lubrication. Either way, oil going through the combustion process is terrible for HC and PM emissions and that means this will be a non-starter. But pressing on regardless ...
- Rotor cooling. On this one, the intake and exhaust pass through the rotor. The intake is not a problem, but the exhaust is a big problem. Where does the heat go? With a Wankel you can pump oil through the central shaft and the inside of the rotor in copious quantities and it's (mostly) sealed from the combustion chambers. How do you do that when the intake and exhaust go through the rotor? In the disassembled view of the engine, this doesn't seem to have a forced lubrication system at all.

Overall assessment: Nope!
06-16-2016 07:18 AM
Game-changing rotary engine muscles a go-kart

I think this is neat. Gizmag. .PDF I think it has potential. Since it can run on a variety of fuels, it can be green. It is small yet could be built bigger, it could power a variety of size vehicles (cars, planes, boats, etc). I think it has potential.

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