Patent ID: 7451727

Claim:
A method for operating an internal combustion engine comprising a working cylinder provided with a piston kinematically connected with a crankshaft, a head of the working cylinder, provided with a combustion chamber disposed in the head of the working cylinder, and with a preignition chamber comprising a spark plug; the method comprising: controlling the power of the engine by adjusting an amount of fuel in the fuel-air mixture injected into the preignition chamber and into the combustion chamber, the combustion chamber and the preignition chamber having a first set of return valves that connect the combustion chamber and the preignition chamber with a supercharger of a fuel-air mixture via fuel-air mixture supplying channels, the supercharger comprising a compressor cylinder with a compressor piston kinematically connected with a working piston, a fuel delivery channel with a device for fuel delivery disposed in the fuel delivery channel, and an air delivery channel, as well as with a cutoff valve with a seat; adjusting the amount of fuel by changing a pulse duration of a fuel delivery through a fuel proportioning device; and changing the pulse duration by controlling a velocity of injection of the fuel-air mixture into the preignition chamber and into the combustion chamber of the working cylinder during a change of an operating mode of the engine to increase or decrease pressure in the compressor cylinder, by changing pressure exerted by the cutoff valve pressure onto the seat.