Internal Combustion Engine Efficiency

摘要

The improvement allows for simplifying the utilization of the method for increasing the energy conversion efficiency of internal combustion engine described in the U.S. Pat. Nos. 8,720,419; 8,776,765; 9,062,600 for spark ignition engines by means of generating nitrogen dioxide inside combustion chambers during intake and compression strokes, using spark plugs as discharge electrodes and specially designed or modified ignition system as a source of high-voltage for feeding the electric discharges, which generate nitrogen dioxide.

主权项

1. A method of increasing efficiency of an internal combustion engine by reducing friction between cylinder walls and associated piston rings, wherein the engine has an air intake path for introducing air into combustion chambers, the method comprising: generating nitrogen dioxide (NO2) in the air intake path by high-voltage electric discharge, whereby the chemical reaction between NO2, oxygen of air, water vapor in air provides reactant HNO3, which chemically dissolves the carbonaceous deposits that substantially contribute to the friction between the cylinder walls and associated piston ring,
the improvement comprises: the nitrogen dioxide in the said method is being generated inside the combustion chambers of spark ignition engines during intake and/or compression strokes by supplementary electric discharge(s) on spark plugs, wherein the high-voltage for said supplementary electric discharge(s) is coming from a specially designed or modified ignition system, capable of generating said supplementary electric discharge(s); and the amplitude of the high-voltage for said supplementary electric discharge(s) is low enough to not ignite the air/fuel mixture in said chambers during the intake and compression strokes.