awesome, turns any electric vehicle into any any fuel vehicle when added as a generator.

3HP @ 10,000 RPM ? holy-moley!

Wow, I just don't get why people are still wasting so much time, money and resources on developing IC engines when electric motors are smaller, have higher torque and power outputs per volume/weight, are more reliable, last longer and are silent. Battery development is happening at such a rapid pace now that ICE vehicles are going to be considered dinosaurs within a decade or two (many people already consider them to be!)

The two of the first applicatios of this engine should be, generators and lawn equipment! Then move on to bigger versions...

@MrT: Well, this is not being touted as a clean energy solution. It's more of an interesting engineering accomplishment. Academically interesting.

I think that has a lot of potential. I think it could power a generator and be used as a range extender in electric or fuel cell vehicles. Since it can be small or really big, it could power vehicles of different sizes. Since it uses a variety of fuels, it could be very green.

More than merely academically interesting - Dev kit starts at $30,000! I think I just figured out what's wrong with this motor. If it has any utility - which btw has yet to be proven, and in particular emission sins - it will have to wait 20 years for the patent to expire. Oh well, see you later.

Are you listening Mazda? (or any other automotive or aviation company willing to take a risk on awesome?) Let's get this sucker going, and pronto! ------------ @Mr T: These are still being developed simply because we're still going to be using I/C engines for some time to come despite such "rapid pace", and any improvements are welcome and useful, as long as there are those willing to take on the commercialization challenges. For all the battery development going on, there is still lacking a sufficient way to store enough electrical energy in a portable, cost-effective and safe fashion. Liquid carbon-based fuels still hold a huge advantage in this area. The nice thing about this design is its flexibility in the kinds of such fuels it can utilize, including, I'm sure, synthesized types. I say, "keep at it folks!" Let's keep 'em coming! ☺

It could be a big deal for hybrid flight using gasoline and this engine to generate current powering multiple electric motors. You could use batteries, but their power stored to weight ratio is still way to low to be applicable or more than short flights in the medium term.

@MrT ICEs will be with us for a long, long time. When electric finally does become truly mainstream (>40% of vehicles on the road) the price of fossil fuels will go down, limiting the capture of the remaining market. In the mean time more efficient engines are very important. That said, rotary engines are not more efficient.
Have they addressed the lubrication or MPG problems with this design?