METHOD FOR STARTING AN INTERNAL COMBUSTION ENGINE OPERATING WITH COMBUSTIBLE GAS

摘要

The invention relates to a method for starting an internal combustion engine (ICE) operating with combustible gas, with an internal combustion system, especially a large gas engine, wherein a burnable gas/air mixture is formed in the admission system (I), especially in a gas mixer (9), upstream from a charger (7), said engine comprising a first and a second group (A, B) of cylinders (1, 2, 3, 4, 5, 6). During the starting phase, a first group (A) of cylinders (2, 3, 6) is at least temporarily operated by sparking, and compressed air is at least temporarily blown into the cylinder chambers of the second group (B) of cylinders (1, 4, 5). In order to ensure a reliable cold start of the internal combustion engine, the following steps are carried out: the gas/air mixture in the cylinder chambers of the first group (A) of cylinders (2, 3, 6) is ignited by means of at least one starter iginition plug (22) per cylinder; the supply of compressed air to the second group (B) of cylinders (1, 4, 5) is stopped and the gas/air mixture blown into the cylinder chambers of the second group (B) of cylinders (1, 4, 5) is ignited by means of at least one starter ignition plug (22) per cylinder, when the rotational speed of the internal combustion engine exceeds a defined starting rotational speed (n2); self-igniting pilot fuel is introduced into the cylinder chambers of the first and second groups (A, B) of cylinders (1, 2, 3, 4, 6) when a defined operating temperature is reached in the cylinder chambers of the cylinders (1, 2, 3, 4, 5, 6); and the gas/air mixture is ignited by means of the self-igniting pilot fuel, the starter iginition plugs being deactivated.