Monitoring arrangement for a gas turbine spark ignition system

Details Monitoring arrangement for a gas turbine spark ignition system Monitoring arrangement for a gas turbine spark ignition system

1984-05-02

1987-01-13

Rowland, James L.

Communications: electrical

Condition responsive indicating system

Specific condition

731181, 310311, 340658, 367199, G08B 2100

Patent

active

046367772

ABSTRACT:
A monitoring arrangement for a gas turbine spark ignition system in which the spark discharge current oscillates at a known frequency includes a sonic sensor accoustically coupled to the spark igniter, a filter for passing only those signals from this sensor which have a frequency corresponding to that of the discharge current and indicating means responsive to the filter output for indicating that the spark igniter is operating. An additional optical sensor may provide a signal response to a spark gap in the ignition system, signals from both sensors being required to energize the indicating means.

REFERENCES:
patent: 2659881 (1953-11-01), Bogot et al.
patent: 3016457 (1962-01-01), Brown et al.
patent: 3665445 (1972-05-01), Riley, Jr.
patent: 3895344 (1975-07-01), Gill, Jr. et al.
patent: 4279027 (1981-07-01), Van Sloun
patent: 4307387 (1981-12-01), Baxendale
patent: 4417235 (1983-11-01), Del Grande
patent: 4473821 (1984-09-01), Yang et al.

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