FIELD: motors and pumps.
SUBSTANCE: group of inventions relates to the field of aircraft engine building. In the turbojet engine operation method, the afterburner system transfer to the intermediate and full afterburner mode is performed by the ACAS TCL sequential movement from the angular position αtcl2 into the angular ranges αtcl3-5 and performing the “second-third” and “first-fourth” structurally coupled collectors sequential automatic switching in the "second-third-first-fourth" order, increasing the intermediate forced modes thrust by the sequential increase in the afterburner fuel supply intensity. With the threshold pressure in the second collector reaching, by the ACAS command opening the fuel supply to the third FC collector through the FABR. With the total fuel consumption in the second and third collectors reaching (45±1) % of the total consumption in the full afterburner, the ACAS switches on the fuel supply to the first collector and by the TCL subsequent movement increasing the fuel supply through the FABR and building up pressure in the collector to the threshold value, at which achievement the ACAS switches on the FC fourth collector. Using the similar technique increasing the total fuel consumption in the FC collectors to the 100 % consumption level at full afterburner. To achieve the full afterburner mode, moving the TCL to the αtcl7 and increasing the fuel consumption in all working collectors of the FC and the afterburner thrust increment with the engine transfer to the full afterburner mode. When entering the high-altitude mode, pressure in all collectors is automatically reduced by the ACAS command through the NABR, depending on the external pressure decrease in the atmosphere.
EFFECT: achieved by the group of inventions technical result consists in increase in the efficiency by 2 % and more than double increase in the engine life.
16 cl, 4 dwg
