FUEL-AIR BURNER AND NOZZLE MODULE OF FUEL-AIR BURNER Russian patent published in 2019 - IPC F23D14/02 

FIELD: engine building.

SUBSTANCE: invention relates to gas turbine engine building, in particular to designs of combustion chambers of gas turbine engines, ground gas turbine engines used as drive of supercharger of gas transfer unit or electric generator. Fuel-air burner includes swirler, in hollow blades of which there are holes for gas supply to inter-blade cavities of swirler, nozzle, nozzle module, which includes hollow housing, which contains on external cylindrical surface thread for connection with splined nut and holes for gas supply inside hollow body and further to hollow blades of swirler, splined nut made in form of hollow cylinder with additional thread in front part and cylindrical protruding belt for placement in splined nut of threaded plug with sealing rings, for attachment of burner to gas distributing device. Face nut is made part of central nozzle with cylindrical bushing, containing through air channel, ending with holes, and at the end of which the swirler is located, inside the hollow housing a bushing is installed, which forms two cavities of gas supply, external surface of the hollow housing is made in the form of an expanding cylinder projecting inside the nozzle.

EFFECT: invention makes it possible to prevent breakthrough of flame inside the burner nozzle, to reduce emissions of hazardous pollutants, to ensure reliability of burner operation.

5 cl, 1 dwg