METHOD OF REDUCTION OF EXHAUST GAS EMISSIONS FROM INTERNAL COMBUSTION ENGINES

摘要

The invention relates to a method for reducing harmful and toxic exhaust gases from an internal combustion engine (1) which comprises at least one cylinder (2) to which an air/fuel mixture is supplied when a crankshaft (4) of the internal combustion engine (1) is to be made to rotate. The method comprises the following stages: an air/fuel mixture with a lambda value of greater than one is supplied to the cylinder (2), and the pressure in the intake channel (5) is controlled by means of an electric motor/generator (10) coupled to the crankshaft (4), so that when the pressure in the intake channel (5) exceeds a predetermined pressure, the electric motor/generator (10) is controlled in such a way that the pressure in the intake channel (5) can decrease, and when the pressure in the intake channel (5) falls below a predetermined pressure, the electric motor/generator (10) is controlled in such a way that the pressure in the intake channel (5) can increase.