Patent ID: 9046040
Filing Date: 2015-06-02
Classification: F02C,F05D

Abstract:
1. A detection method for detecting ingestion of water or hail in a gas turbine engine, the engine including at least a compressor, a combustion chamber, and a turbine, the method comprising: estimating, using a processor, a value of a first indicator representative of water or hail being ingested; estimating, using the processor, a value of a second indicator representative of water or hail being ingested, the second indicator being different from the first indicator; calculating, using the processor, a value of a global indicator by summing at least the first indicator and the second indicator; measuring temperature at an inlet of the combustion chamber; estimating, using the processor, a temperature modeling the measured temperature; and filtering, using the processor, the measured temperature, wherein the value of the first indicator is estimated as a function of a difference between a drop in the measured temperature and a drop in the estimated temperature, and the value of the second indicator is estimated as a function of a difference between the measured temperature and the estimated temperature, and wherein the value of the second indicator is estimated as a function of the difference between the measured temperature as filtered and the estimated temperature.