Hydrogen fuel system for an internal combustion engine

Abstract: A hydrogen fuel system for an internal combustion engine includes an electrolyzer for generating hydrogen and oxygen gases. A water reservoir in fluid communication with the electrolyzer is provided to maintain the water level in the electrolyzer at an optimum operating level. Hydrogen and oxygen generated by the electrolyzer may be routed to the internal combustion engine to provide the fuel for the engine. Hydrogen and oxygen generated by the electrolyzer which is not consumed by operation of the engine may be stored in pressurized storage tanks for use when required to power the internal combustion engine. Expanders are incorporated in the fuel system of the invention for recovering energy from high pressure high enthalpy process gases for charging the main electrical circuit of the invention. The fuel system includes external ports and electrical outlets for connecting to external water and power sources (end of abstract)