Harbin wrote:
Found these other interisting engines:

Cyclone Engine:
http://www.cyclonepower.com/
Pivotal Engine:
http://www.pivotalengine.com/

The Rotoblock is simular to the MYTT:
Rotoblock:
http://www.rotoblock.com/

And they all have the same drawback. Overly complicated, don't live up
to their hype and no working prototype.

You left out the "Quasi Turbin" that at least had a 'working prototype'
if you define the term very loosly.

Someone else said the same thing but it bears repeating.

"get back to us when there is a working prototype"

Harry K