Gas turbine ignition system

Details Gas turbine ignition system Gas turbine ignition system

1990-03-23

1991-12-03

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Different fluids

60 39821, F02C 7266

Patent

active

050690329

ABSTRACT:
A gas turbine ignition system (40) in accordance with the invention includes a power takeoff (42) coupled to the turbine for providing rotary power upon rotation of a rotor of the turbine; a clutch (48) having an input (46) coupled to the power takeoff and an output (50) which outputs torque applied to the input when the rotor is rotating at a velocity less than a velocity at which the turbine is self-sustaining and which does not output torque when the rotor is rotating at a velocity at least as great as the self-sustaining speed without control from an external source; a permanent magnet generator (52) coupled to the output for generating electrical power in response to the rotation of the rotor; and an ignition system (16) powered by the electrical power generated by the permanent magnet generator for producing ignition pulses coupled to a combustor within the turbine until the output of the clutch is disengaged from the input.

REFERENCES:
patent: 2402547 (1946-06-01), Gilfillan
patent: 2613499 (1952-10-01), Lawter
patent: 3049879 (1962-08-01), Clark
patent: 3138924 (1964-06-01), Lawser
patent: 3465162 (1969-09-01), Oprecht
patent: 4425812 (1984-01-01), Williams
patent: 4645940 (1987-02-01), Wertheim

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