METHOD OF BATCH PRODUCTION OF GAS-TURBINE ENGINE, AND GAS-TURBINE ENGINE MADE BY MEANS OF THIS METHOD Russian patent published in 2015 - IPC G01M15/14 

FIELD: engines and pumps.

SUBSTANCE: invention relates to aircraft engine building, namely to aircraft gas-turbine engines. A batch production method of a gas-turbine engine involves manufacture of parts and completing of assembly units, components and assemblies of modules and systems of the engine. The engine is assembled module-by-module and made as two-stroke and two-shaft. An intermediate housing; a gas generator including a high-pressure compressor, the main combustion chamber and a high-pressure turbine is installed on a process jig. A low-pressure compressor is installed in front of the intermediate housing, and behind the gas generator there in- series and coaxially installed is a low-pressure turbine, a mixer, the front device, an afterburner and an all-mode jet nozzle. After assembly is completed, the engine is tested for gas-dynamic stability of operation of the compressor. The test bench is provided with an inlet aerodynamic device with a remotely controlled extension-type interceptor that crosses an air flow in an adjustable manner. 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. When necessary, tests are repeated for a certain set of modes as per regulations, which correspond to real operation mode of GTE under flight conditions.

EFFECT: simplification of a technology and reduction of labour costs and power consumption for a GTE test process at an industrial batch production stage at enlargement of reliable determination of boundaries of the allowable thrust variation range.

12 cl, 4 dwg