MIXING ENHANCEMENT STRUCTURE IN DOUBLE SWIRLING BURNER FOR A MICRO GAS-TURBINE ENGINE OF REVERSE ANNULAR COMBUSTOR TYPE

摘要

A mixing enhancement structure in a double swirling burner for a micro gas-turbine engine for a reverse annular combustor type comprises a first fuel supply unit in which a fuel inlet and a fuel nozzle is formed; a second fuel supply unit formed to cover the first fuel supply unit and for forming a flowing path to supply the fuel with the first fuel supply unit; a first fuel discharge unit for discharging a part of the fuel supplied to the first fuel supply unit; a chamber in which the fuel discharged through the first fuel discharge unit is stored; an air inflow unit for supplying air for being mixed with the fuel; a first air supply unit for guiding the air supplied to the air inflow unit to be mixed with the fuel of the first and the second fuel supply unit; a second fuel discharge unit for discharging the fuel in the chamber to a second air supply unit; a first and a second circling apparatus for mixing the air with the fuel of the first and the second fuel supply unit by circling the air of the first and the second air supply unit. The fuel discharged to the second fuel discharge unit is discharged from the one partition of the second air supply unit. The mixing structure forms first swirling by colliding with other partition of the second air supply unit with the discharged pressure and mixes the air and the fuel by forming the swirling in the second circling apparatus again.