AIR-FUEL MIXTURE SPRAY DEVICE, COMBUSTION CHAMBER AND GAS TURBINE ENGINE Russian patent published in 2011 - IPC F23R3/30 F23R3/14 F02C7/22 

FIELD: power industry.

SUBSTANCE: spray device of fuel-air mixture to combustion chamber of gas turbine engine, which has rotation symmetry about Y axis, includes sliding traverse (30b), cap-collar gasket (50b), at least one radial spiral (60b) with Venturi pipe (62b), which is connected by means of outlet end to mixing chamber (70), which are all located from the inlet to the outlet in gas flow direction. In the centre of sliding traverse (30b) there arranged is injector (40). Cap-collar gasket (50b) retains sliding traverse (30b) on the axis. Sliding traverse (30b) includes inlet cylindrical part (31b) continued to intermediate conical convergent part and ended with annular gasket (33b) directed outwards radially, which are all arranged from the inlet to the outlet. Cap-collar gasket (50b) includes inlet shaped fairing (51b) continued to annular gasket (52b) and arranged from the inlet to the outlet, and the gasket is directed radially inward.

EFFECT: invention allows improving air supply to the spray device at minimisation of air losses between the compressor outlet and combustion chamber.

12 cl, 4 dwg