Patent ID: 6766647
Filing Date: 2004-07-27
Classification: F01D,F02C

Abstract:
A method of starting a gas turbine engine, comprising the steps of:a. accelerating a gas turbine engine at a preset acceleration rate to a speed to provide a supply of combustion air to a combustor for ignition of said gas turbine engine, wherein said preset acceleration rate of said gas turbine engine is determined based upon ambient conditions and fuel heating value; b. activating an ignition source for said combustor of said gas turbine engine; and c. initiating a flow of fuel to said combustor at a substantially constant rate to provide an optimum supply of fuel to said combustor and maintaining said constant rate until the correct fuel-to-air ratio is achieved and ignition of said gas turbine engine occurs, and after initiating the flow of fuel at a substantially constant rate, increasing the fuel flow non-decreasingly until the engine drives a load.