This sounds like a membrane separation system where oxygen is essentially filtered out by passing pressurized air through a membrane. This gives an enriched nitrogen atmosphere (but some oxygen gets through). Anybody know for sure?
I know for sure as I am working on the project... it works as you described.
How TWA 800 was destroyed does not matter. This solution will prevent any future fuel tank explosions, even if the aircraft is hit by a missile.
I must admit, this solution is rather simple and did impressed me.
Use the natural 80% Nitrogen and 20% Oxygen in the air and remove the Oxygen. What you have left is an atmosphere that will not allow aviation fuel to explode, no matter what the cause is.
Interesting technology and I hope that our military aircraft are rapidly upgraded to this new molecular filtration system.