Gas Injection Process Injecting and intermixing an Non-Combustible Gas (D) (non-burnable gas) with the ' Burnable Gas-Mixture (B) "changes" or "alters" the gas-mixture " Burn-Rate ". Increasing the volume-amount of Non-Combustible Gas (D) diminishes and/or lowers the " Burn-Rate " of the Gas-Mixture (B/D) still further. Progressive and controlled intermixing of the non-combustible gases (B/D) allowed the "Burn-Rate" of Hydrogen to be "lowered" or "adjusted" to "match" or ... co-equal the "Burn-Rate" of other Fuel-Gases , see curve line in Figure (2-2). In terms of operational performance, the Non-Burnable gas (D) does "Not" support the Combustion Process since the Non-Burnable Gas (D) "restricts" or "retards" the speed at which the Oxygen Atom unites with Hydrogen Atoms to cause Gas Combustion .       The " Gas Retarding Process " is, of course, applicable to any type or combination of Burnable Gases or Burnable gas-mixture .