METHOD OF TURBOCHARGER TRIAL

FIELD: physics, trials. ^ SUBSTANCE: invention concerns trials of impeller machines, in particular, turbochargers for pressurisation of internal combustion engines, and can find wide application at trials. The turbocharger trial method consists that gas is injected on an inlet in the turbine, on an inlet in the compressor given in gyration by the turbine, - surrounding or pressure air, determine their rate of flux and pressure. In addition measure a curl rotation frequency of the turbocharger, the gas rate of flux on an inlet in the turbine or the heavy air rate of flux on an inlet in the compressor change under the sinusoidal law, then spot time of retardation of the peak pressure for an exit from the compressor and a rotation frequency of the turbocharger concerning the peak pressure on an inlet in the turbine or spot time of retardation of the peak pressure for an exit from the turbine and a rotation frequency of the turbocharger concerning the peak pressure of a heavy air on an inlet in the turbine, or determine time of retardation of the peak rate of flux of a heavy air for an inlet in the compressor and rotation frequencies turbochanger concerning the peak pressure on an inlet in the turbine, or spot time of retardation of the peak rate of flux of gas for an inlet in the turbine and curl rotation frequencies of the turbocharger concerning the peak pressure of a heavy air on an inlet in the compressor and on their time of retardation judge turbocharger state. ^ EFFECT: increase of reliability of diagnostics of their technical state and to lower number of not planned repairs on 20-30 %, and also to raise an overall turbocharger performance on 5-10 %, having dilated surging operation stability. ^ 1 dwg