<p>The invention relates to an aircraft gas-dividing and gas-distributing system comprising an oxygen/nitrogen generator which is connected to an air-conditioning system through the inlet line thereof and to a fuel tank pressurisation system through an outlet line for supplying a nitrogen-rich air, wherein the input line of an oxygen-rich air supplying generator is connected to the combustion chambers of the aircraft thrust engine, is provided with control and adjusting equipment and an atomiser used for enhancing combustion efficiency is arranged at the entry into the combustion chambers.</p>
