[zuluzeugma]

I wouldn't be so quick to write EVERYTHING off. The law of conservation of energy most definitely applies to the situation. IF the auto cycle was 100% thermodynamically efficient, than you could throw any kind of artificial aspiration out the window as well as hydrogen generation. The problem is that the Otto cycle, as it stands, is limited by thermodynamic principles. As the compression ratio of an Otto cycle engines goes up, the thermodynamic efficiency also goes up. This is also true with the diesel cycle. We all know that not all the fuel is burnt in the Otto cycle and with advancements in fuel injection, this problem has become much better, but it still exists.

If the hydrogen generator takes 10% of the engine's power to split water into H2 and O but allows for 20% more fuel to be burnt, you have won.

Saying this, I highly doubt that this system is advanced enough to provide 20-28% fuel economy increases. However, There are several people who are doing Hydrogen injection with diesels with incredible results. The difference: They are packing a welding bottle full of H2 in the truck with them much like a Nitrous bottle. In the future, I don't doubt this system will become a reality and it will function just like a super charger or a turbo charger: It will take power from the engine to increase the thermodynamic efficiency.

My two cents…