Method and system for calibrating an engine core by determining power rating data of the engine core
AssigneeROLLS-ROYCE plc
InventorJoseph B Cooper
Life of this patent
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Abstract
A method of calibrating an engine core of a gas turbine engine, wherein the engine core includes a turbine, combustion equipment, a compressor, and a core shaft connecting the turbine to the compressor, the core shaft arranged to drive a propulsive fan of the gas turbine engine, the method including: providing a resistance load on the core shaft, the resistance load arranged to replicate the load of a propulsive fan; driving the engine core; measuring a performance parameter or the engine core; measuring a thrust generated by the engine core; and determining power rating data of the engine core, providing a correlation between the performance parameter and the thrust.
Claims20
A method of calibrating an engine core of a gas turbine engine, the engine core comprising a turbine, combustion equipment, a compressor, and a core shaft connecting the turbine to the compressor, the core shaft being configured to drive a propulsive fan of the gas turbine engine, the method comprising:
- providing a resistance load on the core shaft, the resistance load being configured to replicate a load of the propulsive fan;
- driving the engine core;
- measuring a performance parameter of the engine core;
- measuring a thrust generated by the engine core;
- and
- determining power rating data of the engine core, which provides a correlation between the performance parameter and the thrust, so as to calibrate the engine core.
A calibration system configured to calibrate an engine core of a gas turbine engine, the engine core comprising a turbine, combustion equipment, a compressor, and a core shaft connecting the turbine to the compressor, the core shaft being configured to drive a propulsive fan of the gas turbine engine, the system comprising:
- a frame for mounting the engine core;
- a base for supporting the frame, the frame being coupled to the base by an interface arranged to allow relative displacement of the frame and base;
- a sensor arrangement configured to measure a force exerted between the frame and the base;
- and
- a resistance load configured to be coupled to the core shaft of the engine, the resistance load being configured to replicate a load of the propulsive fan.
Dependencies are inferred from the claim text.