FUEL ATOMIZING DEVICE FOR GAS TURBINE ENGINE

PURPOSE: A fuel injection system for a gas turbine engine is provided to increase the engine output by injecting fuel to the air introduced via a swirler element in a combustion engine with a simplified main nozzle and a pilot nozzle for obtaining pre-mixing efficiency between the fuel and the air. CONSTITUTION: A fuel injection system for a gas turbine engine includes a case, a cap(12) for sealing an upper end part of the case, a fuel injection pilot nozzle mounted to the cap, a flange disposed in the case and formed with a compressed air inlet, and a swirler unit(20) having a cooling swirler fixed and supported by the flange for swirling the air supplied to the fuel injection pilot nozzle, a first plate element mounted on the cooling swirler, a plurality of vanes(25) mounted on the plate element with an inclination angle toward the center of the top surface of the plate element, and a guide element(26) supported at end surfaces of the vanes and formed a with coupling hole to be mounted with the pilot nozzle and at least two guide partition walls(26b,26b') in the shape of scroll for surrounding the vanes and disposed with a predetermined interval, wherein at least one main nozzle(30) is mounted to the cap for supplying fuel to the swirler element.