Stall detector for a gas turbine engine

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

1975-11-19

1977-12-06

Gordon, Clarence R.

Power plants

Combustion products used as motive fluid

60 3927, 60 3928R, 60 3928T, 60 3929, F02C 902, F02C 914

Patent

active

040609804

ABSTRACT:
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.

REFERENCES:
patent: 3133416 (1964-05-01), Mock
patent: 3172259 (1965-03-01), North
patent: 3513899 (1970-05-01), Paduch
patent: 3759037 (1973-09-01), Kiscaden
patent: 3852958 (1974-12-01), Adams
patent: 3867717 (1975-02-01), Moehring
patent: 3868625 (1975-02-01), Speigner

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