METHOD FOR COOLING HIGH-VOLTAGE WIRE OF IGNITION CABLE OF AIRCRAFT GAS TURBINE ENGINE Russian patent published in 2022 - IPC F02C7/266 

FIELD: electrical ignition systems.

SUBSTANCE: invention relates to the ignition of combustible mixtures, in particular to electrical ignition systems for aircraft gas turbine engines (GTE) and can be used in ignition systems of industrial gas turbine units (GTU). To cool the structural elements of the ignition cable, air is taken from one of the compressor stages of the gas turbine engine and this air is supplied to the internal cavity of the shielding sleeve of the ignition cable. Next, cooling air is blown through the end fitting of the high-voltage wire, the contact of which is connected to the contact head of the central electrode of the spark plug, the leg of the ceramic insulator of the spark plug, the coaxial gap between the screen ceramic insulator and the metal screen of the spark plug, the cooling air is ejected from the coaxial gap between the screen ceramic insulator and spark plug metal shield through at least one hole in the spark plug metal shield.

EFFECT: increasing the strength of the termination of the high-voltage wire of the ignition cable of an aircraft gas turbine engine.

1 cl, 2 dwg