Apparatus for ignition and reignition for a gas turbine

Details Apparatus for ignition and reignition for a gas turbine Apparatus for ignition and reignition for a gas turbine

1981-12-24

1983-11-15

Casaregola, L. J.

Power plants

Combustion products used as motive fluid

Different fluids

60 39827, F02C 726, F02C 7262

Patent

active

044148046

ABSTRACT:
A spark ignition system for a gas turbine electronically controls the cycle of charge and discharge of a spark generator of the capacitive type. There is a function generator (5) which derives a reference voltage as a function of the speed of the turbine and possibly of other parameters. A charge control (6) for the capacitive cell (9) and a spark frequency control (7) are controlled by the reference voltage. Reignition in the case of flame extinction is controlled by an opto-electronic arrangement (11, 12, 13) which drives a reignition circuit (14), when flame extinction is detected. The reignition circuit produces a voltage which is superimposed on and over-rides the speed reference voltage to activate the system to produce ignition at a start condition.
The system can be used for ignition of a gas turbine, especially a turbo-compressor.

REFERENCES:
patent: 2697184 (1954-12-01), Lautenberger
patent: 3504490 (1970-04-01), Klamm
patent: 3600887 (1971-08-01), Gault et al.
patent: 3869645 (1975-03-01), Collins
patent: 3900017 (1975-08-01), Collins

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