US 12,460,586 B1
System and method for detecting and responding to flameout conditions in gas turbine engines
James Jonathan Underwood, Chula Vista, CA (US); Christopher Jeremy Wiggins, Newhall, CA (US); Nathan James Kirksey, San Diego, CA (US); and Darrel Patrick Zeltner, Escondido, CA (US)
Assigned to Solar Turbines Incorporated, San Diego, CA (US)
Filed by Solar Turbines Incorporated, San Diego, CA (US)
Filed on Sep. 17, 2024, as Appl. No. 18/887,061.
Int. Cl. F02C 9/28 (2006.01)
CPC F02C 9/28 (2013.01) [F05D 2240/35 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for detecting and responding to a flameout condition in a gas turbine engine, the system comprising:
a probe positioned within the gas turbine engine, the probe configured to detect a radiation from a gaseous content resulting from a combustion reaction within the gas turbine engine;
a spectral data receiver unit configured to process a signal associated with the radiation for four different wavebands and correspondingly deduce four different current signals; and
a flameout relay configured to be triggered to move one or more fueling valves of the gas turbine engine to a shutdown state to halt fuel supply into the gas turbine engine based on at least one of:
one or more of the four different current signals meet a predefined condition, or
a turbine rotor inlet temperature (TRIT) derived or calculated from the four different current signals is below a temperature threshold or a rate of drop of the TRIT is below a rate threshold.