Method for the injection of fuel

A method for the injection of Diesel fuel into a combustion chamber of an internal combustion engine by way of an injection valve including a valve tappet, such that a plurality of pilot and main fuel injection ports arranged one above, another and in series in the direction of opening movement of the valve tappet, said method comprising the steps of:

• injecting, in a partial load range, pilot injection jets through said pilot injection ports in various injection directions and angles in relation to the longitudinal axis of valve into the combustion chamber prior to the initiation of compression ignition such that an essentially homogeneous mixture of air and fuel is produced in said combustion chamber and, during full load and close to full load operations, injecting fuel into the combustion chamber additionally through the main injection ports to form main jets distributed over the periphery in such a way that each main jet encompasses at least one pilot injection jet so as to largely incorporate said pilot jet into the respective associated main fuel jet thereby forming a common fuel jet, and providing for fuel jet bundle which are distributed over the periphery of the combustion chamber of the internal combustion engine.