Patent ID: 7191737

Claim:
A method for increasing the fuel efficiency of an internal combustion engine, the method comprising: a) providing an electrolyzer for electrolyzing water into hydrogen gas and oxygen gas for use as an additive to the fossil fuels on which an internal combustion engine operates such as engines in motor vehicles, the electrolyzer comprising: an electrolysis chamber, the electrolysis chamber having a removable cover serving as access means for performing routine maintenance to components in its interior space; an aqueous electrolyte solution comprising water and an electrolyte, the aqueous electrolyte solution partially filling the electrolysis chamber such that a gas reservoir region is formed above the aqueous electrolyte solution; two principal electrodes comprising an anode electrode and a cathode electrode, the two principal electrodes at least partially immersed in the aqueous electrolyte solution; and one or more supplemental electrodes at least partially immersed in the aqueous electrolyte solution and interposed between two principal electrodes that are not connected to the anode or cathode with a metallic conductor wherein the two principal electrodes and the one or more supplemental electrodes are held in a fixed spatial relationship; means for individually removing and replacing said principal electrodes and supplemental electrodes wherein the principal and supplemental electrodes are removably insertable and attached in a rack holding said electrodes in a fixed spatial relationship, said rack further comprising a retainer for securing the electrodes to the rack and said retainer further being removably attached to the electrolysis chamber; and heat sink means for removing an excess heat generated by the electrolyzer, said means including a plurality of spaced-apart fins around at least a portion of the outside surface of the electrolysis chamber; b) applying an electrical potential between the two principal electrodes wherein a gas mixture comprising hydrogen gas and oxygen gas is generated and collected in the gas reservoir region and wherein the electrolyzer is adapted to deliver the gas mixture to the fuel system of the internal combustion engine; and c) combining the gas mixture with fuel in the fuel system of the internal combustion engine.