Patent ID: 7281382
Filing Date: 2007-10-16
Classification: F01D,F02K,F05D,F23M,F23N,G01J,Y02T

Abstract:
1. An apparatus for detecting the presence of flame in the exhaust path of a gas turbine engine comprising: an optical viewing port mounted to a gas turbine engine exhaust section to collect radiant energy present in the exhaust path; a sensor element comprising at least one spectrometer having a diffraction grating for refracting the radiant energy into different wavelengths and further having a detector array comprising a plurality of detectors, each detector sensitive to specific wavelengths of the refracted radiant energy produced from flame transmitted from said optical viewing port, wherein said sensor element emits an electrical signal when radiant energy is present; and, a microprocessor, for receiving and interpreting the electrical signal in comparison to predefined parameters, connected to said sensor element and activated when flame has been detected in the exhaust path of the gas turbine causing the electrical signal, wherein the microprocessor produces an output relative to the electrical signal.