PROBLEM TO BE SOLVED: To provide a portable and compact, on-demand hydrogen supplemental system for a vehicle.SOLUTION: Hydrogen and oxygen is produced with a fuel cell 5 at low temperatures and pressure from water in a supply tank. The hydrogen gas and oxygen gas is passed back through the supply tank for distribution and water preservation. The gases are kept separate by a divider 17 in the tank and the water level in the tank. In the case of gasoline engines, the hydrogen gas is directed to the air intake of the engine while the oxygen gas is vented to the atmosphere. The device can be powered by a vehicle battery, or the like. The system utilizes a vacuum switch or other engine sensor that permits power to the device and therefore permits hydrogen production for the engine only when the engine is in operation. Therefore, as the hydrogen is produced, it is immediately consumed by the engine. No hydrogen is stored on, in or around the vehicle.SELECTED DRAWING: Figure 1
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