STALL WARNING DETECTOR AND METHOD OF DETECTING STALL IN A GAS TURBINE ENGINE

摘要

1505790 Gas turbine engines; axial-flow compressors UNITED TECHNOLOGIES CORP 16 Nov 1976 [19 Nov 1975] 47668/76 Headings F1C and F1G An axial-flow gas turbine engine includes an "AND" gate (42) which transmits an impending stall signal when both a turbine temperature is excessively high and a further predetermined engine condition exists. The latter may be excessive compressor deceleration or opening of air bleed (36). The stall signal initiates an audible or visual alarm or automatically effects corrective action by adjusting the fuel supply, compressor bleeds or stator vanes, or the engine inlet or outlet geometry.