FUEL-AIR BURNER OF GAS-TURBINE ENGINE COMBUSTION CHAMBER Russian patent published in 1999 - IPC

FIELD: mechanical engineering; engines. SUBSTANCE: fuel-air burner of combustion chamber has hollow thin-walled housing with diffuser at outlet, profiled converging ring with conical tip and bell pointed to outlet installed coaxially with housing to form clearance increasing to outlet. Converging ring is arranged on outer surface of wall in clearance. Burner had also air swirler and fuel nozzle. Conical tip is provided with flange on edge. Summary effective area of through sections for passing primary air through front of burner is 0.55-0.8 of summary effective area of through sections of flue holes, and corresponding area of nozzle relative to area of burner and area of nozzle behind tip relative to area of nozzle are 0.1-0.25. Holes are made on edge of conical tip before flange. EFFECT: enlarged range of steady operation of burner, increased starting altitude. 2 cl, 1 dwg