INNENGINE - spanish combustion engine

[martin007]

INNENGINE is a Spanish company that develops combustion engines.
The advantage of these engines is that they are smaller than conventional ones and consume much less.

https://youtu.be/aovQguKPG4A

https://youtu.be/6z-oCf7UybQ



P.S. I'm not an expert on engines.

[Burgerman]

Interesting, but really just another variation on the piston engine. Theres no real gains to be had, everything including this one has been done before with minor differences.