Patent ID: 7823388
Filing Date: 2010-11-02
Classification: F02C

Abstract:
1. A system for controlling a gas turbine engine, comprising: a first valve regulating a flow rate of fuel used in premixed combustion; a second valve regulating the flow rate of fuel used in diffusion combustion; and a controller switching the combustion from one to other between the premixed combustion and the diffusion combustion and operating one of the first valve and the second valve associated with the other combustion to be switched so as to supply an amount of fuel required for conducting the other combustion to be switched; wherein the controller decreases the opening of the valve associated with the one combustion to be switched from, while increasing the opening of the valve associated with the other combustion to be switched to, to maintain a total amount of the fuel supplied to the engine constant, after elapse of a predetermined period since opening of the valve associated with the other combustion mode to be switched to.