MAIN LIQUID FUEL INJECTION DEVICE

摘要

PURPOSE: A main liquid fuel injection device is provided to automatically cool a wall receiving high temperature and to protect an outside and a liquid fuel injection channel from damages caused by the deposition of carbon residue. CONSTITUTION: A main liquid fuel injection device(20) for a single combustion chamber with a pre-mixture chamber(12) of a gas turbine having low emission of pollutants is composed of a set of injection channels for a liquid fuel distributed in the pre-mixture chamber; a set of blades(32) extending to the radial direction around a symmetry axis of the combustion chamber, wherein each of the blades has at least one injection channel; an elongate structure of axis-symmetry getting thinner toward a combustion region in the combustion chamber; and a cylindrical base(22) fixed to an axis of the pre-mixture chamber by a bolt penetrating a circumferential set of holes(24).