FUEL SUPPLY SYSTEM FOR GAS TURBINE ENGINE

摘要

PROBLEM TO BE SOLVED: To provide a fuel supply system for a gas turbine engine which can particularly improve reliability of fuel supply in a low rotation rate region when starting up an engine and reduce abrasion and deterioration of each component.SOLUTION: A fuel supply system for a gas turbine comprises: a confluence passage 19 connected to a combustion nozzle 11; a first pump P1 which discharges fuel into the confluence passage 19; a first electric motor M1 which drives the first pump P1; a second pump P2 which discharges the fuel into the confluence passage 19 and has larger capacity than the first pump P1; a second electric motor M2 which drives the second pump P2; and a boost pump 13 which is connected to the first pump P1 and the second pump P2 and supplies the fuel to an intake side of the first pump P1 and the second pump P2 by boosting the fuel stored in a tank T. The boost pump 13 is driven by the first electric motor M1.