METHOD OF INDICATED POWER DETERMINATION IN BENCH TESTS OF MULTICYLINDER INTERNAL COMBUSTION ENGINES WITH GAS TURBINE CHARGING Russian patent published in 2017 - IPC G01M15/04 G01M15/05 

FIELD: engines and pumps.

SUBSTANCE: method of indicated power determination in bench tests of multicylinder internal combustion gas turbine charging is that during the operation in a specified mode the engine brake power N_e is determined with all the cylinders running, then the engine brake power N_e' is determined with a part of cylinders running and, based on the difference between N_e -N_e', the indicated power value is determined. While the air pressure before the compressor, the exhaust gas pressure after the turbine, engine air consumption and charged air pressure are measured in the specified mode for the determination of the engine brake power N_e with all the cylinders running. The same parameters are additionally measured for the determination of the engine brake power N_e' with some cylinders running. Then the engine is switched to the specified mode with all the cylinders running and the air pressure before the cylinder and the exhaust gas pressure after the turbine with all the cylinders running are changed until they coincide with the engine air consumption and exhaust gas pressure with some cylinders running and then, based on them, the engine brake power is determined for the calculation of the indicated power.

EFFECT: increased accuracy.

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