CONTROL OVER AIRCRAFT ENGINE CAPACITIVE IGNITION SYSTEM Russian patent published in 2015 - IPC F02P17/00 F02P17/12 H02P3/06 

FIELD: aircraft engineering.

SUBSTANCE: proposed method comprises measurement of time interval between sequential reservoir capacitor discharge current pulses running to spark plug and caused solely by switching of power stored at said capacitor and exceeding the preset check magnitude. Measured time interval is compared with preset time interval which describes the minimum repetition rate of spark discharge in the plug spark gap. Simultaneously, absence of the plug coaxial shielding ceramic insulator outer surface glow through slot is controlled, slot being made in plug body parallel with its axis. In operation of ignition system its serviceability is continuously defined. This is performed by the absence of the plug coaxial shielding ceramic insulator outer surface glow and difference between measured time interval and preset time interval which describes the minimum repetition rate of spark discharge in the plug spark gap.

EFFECT: higher validity of control.

3 dwg