Quasiturbine Engines???

[MeiersEnterprises 14]

I thought you guys might think this was interesting. It was patented in 1996 and looks promising as a future alternative to a piston type internal combustion engine. Unfortunately, they don't really tell you how much HP you can get out it - just that it's 50% more efficient.

http://auto.howstuffworks.com/quasiturbine.htm

http://en.wikipedia.org/wiki/Qurbine