Fuel control system for gas turbine engine

Details Fuel control system for gas turbine engine Fuel control system for gas turbine engine

F - Mech Eng,Light,Heat,Weapons

02

C

341/95, 341/38.1

F02C 9/28 (2006.01)

Patent

CA 1172730

ABSTRACT A fuel control system (11) for a gas turbine engine (10) is disclosed. The proportional control regulates the fuel flow Wf from a hydromechanical unit (36) based upon an error signal E representing the difference between a demanded speed signal Nd and an actual speed signal Ng. The demarded speed signal Nd is generated by an integrator (32) as the time integral of the difference between the demanded signal Nd and a scheduled speed signal Ngs. Additionally, the difference signal is limited between an upper limit Al and a lower limit Dl prior to the integration by a comparator (28) and limiter circuit (30). (Figure 1)

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