[Oreo]

I'm apprehensive about posting my own explanation because I don't want to get it wrong- and the information is all out there if you search. But I'll try to cover it in a very small nutshell. Maybe it will keep this discussion going.

Basically, you want the charge to combust as fast as possible for the best power. This happens by creating turbulence in the cylinder as the charge burns, & also helps resist detonation. This is traditionally accomplished by "squish" or "quench" zones where the piston very nearly closes the gap to the head. As the charge squeezes out of these squish zones the jet of air causes turbulence.

Sommender Singh has devised a clever way to increase the turbulence in a controlled way. The animations I posted display the theoretical effect. The pictures I posted are supposed to show how the grooves took the combustion all the way to the cylinder wall. If you look on the cylinder without the grooves, on the squish pad there is an area near the cylinder wall where hardly any combustion was taking place. So he's claiming that his grooves cause a more complete burn of the entire charge- no unburnt charge hiding in the nooks & crannies as it were. Faster, more complete burn should equal more power.

But seriously... do some light reading on this stuff from a real source. There's quite a bit of complex stuff happening in there. You'd never even realize unless you actually did some research. It's one of the primary ways that our modern engines differ from older, more classic engines.