A hydrogen and natural gas fuel mixture for internal combustion engines is provided for vehicle engines such as those used in standard production engines for automobiles, trains and lawn mowers. The gaseous fuel for operating a vehicle combustion engines includes approximately 21 to 50% Hydrogen and the rest natural gas constituents such as combinations of Methane, Carbon Dioxide, Nitrogen, Ethane, Propane, Iso-Butane, N-Butane, Iso Pentane, N-Pentane, and Hexanes Plus. A fuel mixture of approximately 28 to 36 percent Hydrogen and a air fuel equivalence ratio of approximately 0.625 is an extreme lean burn condition that yields hydrocarbon emission levels of less than approximately 104 ppm (0.84 hm/hp hr.). Current internal combustion engines that are in mass production can take this alternative fuel without any substantial modifications to their systems. This alternative fuel is lean burning and emits emissions that are below current legal standards. The novel fuel mixture can be used
Application Serial Number
Assignee at Issuance
Florida Solar Energy Center (FSEC)
Assignee at Filing
Nonprovisional Application Record
Collier, R. K.; Hahn, Douglas; Hoekstra, Robert; and Mulligan, David, "Hydrogen Enriched Natural Gas as a Motor Fuel with Variable Air Fuel Ratio and Fuel Mixture Ratio Control (DIV OF 6637 and CIP OF 7863)" (1998). UCF Patents. 254.