>>1215912
(con't.)
There are only three possibilities for how HHO *might* do this.
1.) You inject the HHO straight in.
This is a complete waste. In order to do this, you incur energy conversion losses as follows:
Chemical potential of the gasoline into mechanical work on the piston.
Mechanical work of the piston to mechanical work of the alternator.
Mechanical work of the alternator to electric current.
Electric current into chemical potential of the HHO.
Chemical potential of the HHO into mechanical work on the piston.
All of these stages, added up, mean you get a small fraction of the chemical potential of the gasoline into the actual work done by the HHO. Even if they were all 100% efficient conversions, all it would do is break even, which STILL would incur a slight penalty to economy due to the extra weight the additions represent. Worthless.
2.) You inject only the oxygen.
In theory, this could work slightly (and only slightly) better than gasoline/air. However, not only would it still be a net loss (the more complete combustion could never make up for the energy required to split the water molecules) but, at best, the ECU is going to fuck with the fuel-air ratio after detecting the lean detection, and, at worst, you're going to trash your engine from pre-ignition and detonation on almost every power stroke
3.) You inject only the hydrogen.
The hydrogen will not react with the burning gasoline. It's just going to eat up oxygen that could have been used to burn fuel, instead. And, since you're already at a net loss of energy through simply producing the hydrogen, all it does is worsen fuel economy.
You could, I suppose, only inject some ratio of oxygen/hydrogen, but since the hydrogen's just a straight-up waste of space in the cylinder and the oxygen doesn't affect burn efficiency enough to make it worth producing, there's no "sweet spot" for this that makes it worthwhile.