FIELD: measuring equipment.
SUBSTANCE: technical state diagnosis is carried out at one and the same corrected frequency of a low-pressure rotor rotation, chosen from the operating range, based on current parameter values deviations from the initial ones, corrected to standard atmospheric conditions. Dependences are given, based on which the above-mentioned deviations are determined. At that, negative values of indicate engine air-gas path contamination or air leaks from the low-pressure compressor, and positive values of indicate a deterioration in the efficiency of the low-pressure compressor and/or high-pressure compressor and/or high-pressure turbine, and/or low-pressure turbine. Positive values of and negative value of indicate air suction from the compressor high-pressure path.
EFFECT: increased of accuracy and reliability in the diagnosis of the state of engine flowing part elements and determination of a specific defect and its location.
1 dwg, 2 tbl
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Authors
Dates
2018-01-12—Published
2017-03-14—Filed