COMBUSTION CHAMBER FUEL-AIR BURNER Russian patent published in 2024 - IPC F23R3/14 

FIELD: engines.

SUBSTANCE: invention relates to combustion chambers of gas turbine engines. Fuel-air burner of combustion chamber contains fuel nozzle in the form of housing with fuel supply and spraying holes, as well as swirler arranged in mounting housing, having thread, and containing screen, and located in hole of front device, fixed in it by means of threaded nut. Nut with a hexagon and a spherical part is installed in the nozzle housing. Threaded nut with swirler represents a single part with tangential grooves on its housing. Mounting housing has an internal expanding channel, and the screen contains two reflectors located one after another. Internal reflector has one row of holes at the base, the external reflector has three rows of holes equally spaced in height. Angle of tangential slots is opposite to swirler blade installation angle. At the outlet of the swirler there is a nozzle having a convergent part changing into a cylinder with subsequent expansion. Expansion angle corresponds to the angle of the expanding channel in the mounting housing.

EFFECT: invention provides reduction of toxicity of combustion products with simultaneous improvement of reliability of operation and completeness of fuel combustion.

1 cl, 1 dwg