METHOD OF DIAGNOSING AIRCRAFT ENGINE STATE Russian patent published in 2010 - IPC G01M15/14 

FIELD: aircraft engineering.

SUBSTANCE: in compliance with proposed method, data on current engine parametres P_cur are written on detachable storage and copied into memory unit of the ground system of parametric diagnostics. Said current parametres comprises deviations dP_cur of parameters reduced to standard atmospheric conditions and standard engine operating conditions at steady-state conditions P_st-st of diagnosed engine from reduced controlled parametres determined from measured parametres of said engine at initial state of operation P_ini. Then for every controlled parametre, dP_cur is compared to appropriate tolerable magnitude with dP_dop, and in case dP_cur exceeds the latter, the signs of the other interrelated parametres are determined. Now combination of said signs of deviation allows defining most probable cause of deviations to produce recommendations for their elimination.

EFFECT: higher accuracy and validity of diagnostics.

1 dwg