Stall detector for a gas turbine engine

Details Stall detector for a gas turbine engine Stall detector for a gas turbine engine

F - Mech Eng,Light,Heat,Weapons

02

C

73/168, 341/38.1

F02C 9/16 (2006.01) F04D 27/02 (2006.01)

Patent

CA 1071434

STALL DETECTOR FOR A GAS TURBINE ENGINE Abstract of the Disclosure Stall is detected by monitoring the minimum fuel flow schedule of a gas turbine engine fuel control and another parameter which includes 1) the fuel control acceleration schedule, 2) turbine temperature (inlet or exit) or 3) engine pressure (compressor discharge or burner) and computes these signals so that when both the control fuel metering valve is at its minimum stop position (minimum fuel flow) and one of the following conditions exists, 1) turbine temperature exceeds a predetermined level, 2) the rate of change of pressure exceeds a predetermined negative rate, or 3) the fuel control is on or in proximity to the acceleration schedule, an output will be manifested. -1-

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