COMPOSITE FUEL SYSTEM FOR GAS TURBINE ENGINE

摘要

The system (10) comprises a gaseous fuel duct (30) feeding a manifold (32) and gaseous fuel burners (24) located in the engine combustion chamber or chambers (20). Liquid fuel can be burnt by first burning a small proportion of the liquid fuel in a vapourising combustion chamber (38), injecting the remaining liquid fuel into the vapouriser and ducting the vapourised liquid fuel into the gaseous fuel duct (30). The engine combustion chambers (20) are preferably of the type in which the fuel is burnt rich in the primary zone and is quenched almost immediately by dilution air so as to reduce the NOx emissions.