STARTING FLARE IGNITER OF COMBUSTION CHAMBER OF SMALL-SIZE GAS TURBINE ENGINES Russian patent published in 2024 - IPC F02C7/264 F23Q3/00 

FIELD: engine building.

SUBSTANCE: invention relates to engine building, in particular to small-size gas turbine engines (SGTE) with starting flare igniters as part of a combustion chamber. Combustion chamber starting flare igniter comprises a housing, an ignition plug, a fuel injector, an ignition chamber, annular cavity communicates engine combustion chamber annular channel via holes for supplying air to the annular cavity with ignition chamber with nozzle. Igniter housing consists of a main housing and a cover, in which an ignition plug is installed, through a detachable bushing, and a fuel injector with a fuel pipe, which are made as a single element, wherein fuel injector has holes made at the level of ignition chamber top and holes made at ignition chamber bottom. Annular cavity is formed by the inner wall of the cover and the outer wall of the ignition chamber, connected to the cavity of the ignition chamber by means of tangential holes made in the upper part of the ignition chamber housing, also, the engine combustion chamber annular channel is connected to the ignition chamber through radial holes made in the lower part of the ignition chamber housing. An air flow guide is installed in the upper part of the ignition chamber, and the ignition chamber with a nozzle has a detachable connection to the igniter housing.

EFFECT: increased reliability of the device during its operation due to compensation of thermal expansion during operation of the gas turbine engine, as well as improved repairability of the flare igniter due to detachable connection of the ignition chamber with the nozzle and the igniter housing.

4 cl, 6 dwg