GAS-DISTRIBUTING DEVICE AND BURNER OF COMBUSTION CHAMBER OF GAS-TURBINE ENGINE Russian patent published in 2024 - IPC F23R3/28 F23R3/14 F23D14/24 

FIELD: engine building.

SUBSTANCE: gas turbine engine combustion chamber burner comprises a swirler with blades, a nozzle, housing containing on external cylindrical surface thread for connection with splined nut and gas supply holes inside housing and further to swirler blades, splined nut is made in the form of hollow cylinder with thread with sealing rings for attachment to gas distributing device containing air supply openings. Burner comprises two fuel feed chambers. Outer and inner annular shields with smooth inlet are installed to gas distribution device. Streamlined sprayers are arranged ahead of the swirler in the middle between the blades and protrude into the path between the nozzle and the housing. Along the height of the sprayer, holes are made in three rows and are made perpendicular to the inlet edge of the swirler blade. In housing there is a cavity for uniform distribution of fuel between sprayers, as well as a central circular channel ending with a bridge with holes, an inlet part of a spherical spline nut. Housing has an expanding central body with a recess in the form of a truncated cone at the outlet, nozzle of cylindrical shape with smooth expansion to outlet and length sufficient for provision of homogeneous fuel-air mixture.

EFFECT: achieving high completeness of fuel combustion, providing the possibility of adjusting the fuel combustion process, providing a stable combustion process, ensuring stable ignition, providing low level of emissions of carbon oxides, nitrogen oxides in power gain modes and in conditions of negative ambient temperatures, provision of high-quality preparation of fuel-air mixture, provision of uniform field of velocities and pressures at the swirler inlet.

1 cl, 1 dwg