METHOD FOR DETERMINING THE AIR FLOW THROUGH THE INTERNAL AND EXTERNAL CIRCUITS OF A BYPASS TURBOJET ENGINE Russian patent published in 2023 - IPC G01M15/14 F02C9/16 

FIELD: gas generators.

SUBSTANCE: invention relates to a method for simulating a gas generator (includes a high-pressure compressor, a main combustion chamber, a high-pressure turbine) with an external circuit and a separate input for various operating modes of a bypass turbojet engine, which allows air with different pressure and temperature parameters to be supplied to the external and internal circuits first. The specified effect is achieved by the fact that in the method for determining the air flow through the internal and external circuits of a bypass turbojet engine, a bypass turbojet engine is preliminarily tested, in which, at various engine operating modes, given by the high-pressure rotor speed n1pr, the total pressure P*_VKHKVDpr is measured, P*_VHNK, air temperature T*_VKHKVDpr, T*V_KHNKpr at the inlet to the high-pressure compressor and the external circuit, air flow Gvpr at the engine inlet, low-pressure rotor speed n2pr, then the gas generator is tested with an external circuit with separate inlets to them , at which the previously measured parameters of the total pressure P*_VKHKVDpr, P*_VKHNKpr and air temperature T*_VKHKVDpr, T*V_KHNKpr at the inlet to the high-pressure compressor and the external circuit are set, corresponding to the previously measured speeds of the low-pressure rotor n2pr at various engine operating modes , while measuring ra air outlet G_vpr at the inlets to the gas generator, as well as into its outer circuit.

EFFECT: invention provides the possibility of determining the air flow through the internal and external circuits of a bypass turbojet engine.

1 cl, 7 dwg