Abstract: A device for reforming gas vapors of an internal combustion engine having an air induction system, a combustion chamber, and positive crankcase and fuel tank associated therewith, the device comprising a voltage multiplier unit, a gas vapor treatment means and a gas vapor reforming means disposed within the gas vapor treatment means and in communication with said voltage multiplier unit, characterized in that said gas vapor treatment means having a treatment chamber in communication with a gas vapor intake port and gas vapor discharge port, gas vapor intake port being capable of communicating with said positive crankcase and fuel tank and said gas vapor discharge port being capable of communicating with said air induction system, said gas vapor reforming means is an electronic emitter disposed within the treatment chamber defining therein a first chamber section and a second chamber section each having predetermined volumetric area suitable of providing ample space for complete and effective dissociation of g

Abstract: Apparatus for improving combustion in internal combustion power plants includes a gas vapor treatment chamber for receiving fuel tank and positive crankcase vapors, an emitter for introducing electrons to dissociate ions of the vapors, the reformed vapors being mixed with air passing into a combustion chamber. The reformed vapors can be allowed to enter an air induction system; alternatively, reformation of the vapors can be downstream of mixing of the vapors with air passing in the induction system. Also disclosed is a method for improving the efficiency and/or emissions performance of such power plants.