JET TURBINE ENGINE Russian patent published in 2015 - IPC F02K3/00 G01M15/00 

FIELD: engines and pumps.

SUBSTANCE: invention relates to power engineering. A jet turbine engine is double-flow and two-shaft; with that, it includes at least eight modules mounted preferably as per a module-assembly system, including a high and low pressure compressor, which are separated with an intermediate housing, the main combustion chamber, an air-to-air heat exchanger, high and low pressure turbines, a mixer, the front device, an afterburner and an all-mode jet nozzle. The engine is tested on a bench that is provided with a retractable interceptor crossing an inlet air flow. The interceptor includes a calibrated scale of interceptor positions, which has a fixed critical point separating the engine by 2-5% from transition to surging.

EFFECT: invention allows improving volume and reliability of statically reliable data on allowable boundaries of frequency rotation modes of the rotor with provision of gas-dynamic stability of engines with simultaneous reduction of labour input and energy consumption of a test process.

8 cl, 4 dwg