INJECTION DEVICE OF FUEL-AIR MIXTURE, COMBUSTION CHAMBER AND GAS TURBINE ENGINE EQUIPPED WITH SUCH DEVICE Russian patent published in 2011 - IPC F23R3/28 

FIELD: engines and pumps.

SUBSTANCE: injection device of fuel-air mixture to combustion chamber of gas turbine engine, which changes circular symmetry relative to gas turbine engine, includes radial vortex devices located in series in backward direction in gas flow direction, and funnel-shaped housing. Vortex device has outer diametre D2. Funnel-shaped housing is located at some distance in axial direction from the above radial vortex devices and includes cylindrical wall continued with expanding wall equipped with air inlet holes. Around funnel-shaped housing there is support ring of injection device, which includes the first cylindrical part having outer diametre D3 and connected to the second cylindrical part having diametre D4 and located at some distance in axial direction from the above first cylindrical part (51) and located in series in backward direction in gas flow direction. The first cylindrical part is connected to cylindrical wall of funnel-shaped housing by means of multiple support legs.

EFFECT: decreasing overall dimensions of injection device and providing sufficient section of feeds of air inlet holes.

10 cl, 5 dwg