Method and system for inlet blockage detection
AssigneePratt & Whitney Canada Corp.
InventorsBehzad Hagshenas, Eric Huff
Life of this patent
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Abstract
Herein provided are methods and systems for detecting blockage of an inlet of gas turbine engine. An oil temperature measurement of the engine and an ambient temperature measurement is obtained. The oil temperature measurement is compared to a threshold based on the ambient temperature measurement. Blockage of the inlet of the engine is detected when the oil temperature measurement exceeds the threshold.
Claims18
A computer-implemented method for detecting blockage of an inlet of a gas turbine engine, the method comprising:
- obtaining an oil temperature measurement of the engine from at least one first temperature sensor and an ambient temperature measurement from at least one second temperature sensor;
- comparing the oil temperature measurement to a threshold based on the ambient temperature measurement;
- detecting blockage of the inlet of the engine when the oil temperature measurement exceeds the threshold;
- and
- in response to detecting blockage of the inlet, outputting an alert indicating blockage of the inlet to an aircraft system or shutting down the engine.
A system for detecting blockage of an inlet of a gas turbine engine, the system comprising:
- a processing unit;
- and
- a non-transitory computer-readable memory having stored thereon program instructions executable by the processing unit for:
- obtaining an oil temperature measurement of the engine from at least one first temperature sensor and an ambient temperature measurement from at least one second temperature sensor;
- comparing the oil temperature measurement to a threshold based on the ambient temperature measurement;
- detecting blockage of the inlet of the engine when the oil temperature measurement exceeds the threshold;
- and
- in response to detecting blockage of the inlet, outputting an alert indicating blockage of the inlet to an aircraft system or shutting down the engine.
A non-transitory computer readable medium having stored thereon program code executable by a processor for detecting blockage of an inlet of a gas turbine engine, the program code comprising instructions for:
- obtaining an oil temperature measurement of the engine from at least one first temperature sensor and an ambient temperature measurement from at least one second temperature sensor;
- comparing the oil temperature measurement to a threshold based on the ambient temperature measurement;
- detecting blockage of the inlet of the engine when the oil temperature measurement exceeds the threshold;
- and
- in response to detecting blockage of the inlet, outputting an alert indicating blockage of the inlet to an aircraft system or shutting down the engine.
Dependencies are inferred from the claim text.