초록 ▼

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

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 in internal combustion engines for automobiles, lawnmowers, and trains. A control system for allowing the internal combustion engines to operate at extreme lean burn conditions is also provided for use with both a carburetor and fuel injection system. For a carburetor system, a secondary demand regulator system can kick in when a throttle is wide open and will allow additional fuel to pass through the system to meet instantaneous power demands such that occur when full throttle depression is insufficient for severe grade climbing, expressway merging, passing and the like. The fuel injection system can also be programed with a control algorithm that will select air fuel ratios. The computer control can increase fuel with respect to air when the throttle reaches a selected point of travel. The computer control can also dynamically change the hydrogen and natural gas fuel mixture ratio dynamically while the vehicle is being operated based on engine power demands and emissions.

대표청구항 ▼

[ We claim:] [1.] A control system for varying air and fuel ratios of an internal combustion engines running at lean burn with reduced emissions during cycles for instantaneous power demands comprising:an internal combustion engine of a mobile vehicle operating on a fuel supply having a mixture of h

[ We claim:] [1.] A control system for varying air and fuel ratios of an internal combustion engines running at lean burn with reduced emissions during cycles for instantaneous power demands comprising:an internal combustion engine of a mobile vehicle operating on a fuel supply having a mixture of hydrogen and natural gas;an air fuel control for maintaining fuel supplied to the engine to remain at a selected air fuel ratio to achieve a lean burn condition;a throttle for controlling the amount of fuel being supplied to the engine, the throttle having a closed position through a fully open position;a sensor activated by the fully open position of the throttle, wherein the activated sensor causes the air fuel control to increase the percentage of fuel in the selected air fuel ratio; andmeans for dynamically adjusting mixture ratios of the hydrogen gas and the natural gas supplied to the engine based on engine power and emission.