Surge detection system of gas turbine aeroengine

Details Surge detection system of gas turbine aeroengine Surge detection system of gas turbine aeroengine

F - Mech Eng,Light,Heat,Weapons

02

C

F02C 9/00 (2006.01) F02C 9/28 (2006.01)

Patent

CA 2348342

A surge detection system for detecting a surge occurred at a compressor of a gas turbine aeroengine having a turbine connected to the compressor. In the system, the ratio between the compressor outlet pressure and its differential and the differential of the turbine inlet temperature (or the ratio between the turbine inlet temperature and its differential) are calculated. Then, the calculated value are multiplied together and the product is compared with a threshold value. When the product is less than the threshold value, it is determined that a surge occurred at the compressor. With this, a surge occurred at the compressor and a magnitude or degree of the surge occurred may be accurately detected.

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