Hydrogen (H₂), Oxygen (O₂), Helium (He) Combustion Engine

This is a concept to use an injection of Hydrogen (H₂) gas, Oxygen (O₂) gas, and Helium (He) gas (to keep the Hydrogen (H₂) and Oxygen (O₂) gases from binding together), to cause a combustive force to cause pistons to accelerate, downwards, and then the helium would escape as part of the exhaust through the top of the piston compartment, while the Hydrogen (H₂), Oxygen (O₂) would combust, with a small amount of condensation that would escape as steam. Then, the helium could be filtered out of the exhaust, and re-used, and the water vapor could also be collected, and would have electrolysis conducted to it, to separate it into its parts, again, being the Hydrogen (H₂) and Oxygen (O₂) gases. The three gases would be injected into the piston compartment with three separate small or tiny gas injection nozzles.