Process of Automation the Protect Gas-Turbine Engine from the Surge

Abstract

Analysis one for possible ways of automation protection of gas-turbine engine from surge that derives all or most of its thrust by reaction to its ejection of combustion products (or heated air) in a jet and that obtains oxygen from the atmosphere for the combustion of its fuel. Parameters of control and operate - quantitative and qualitative change of frequency rotors turn and of gas temperature over the turbine. Analysis of the parameters examination with calculation signs of changes this parameters. Examine algorithm of indications signs surge of gas-turbine engine, reduce the speed feeding of oil fuel, automation start the gas-turbine engine. Algorithm of protect from surge suitable used for two type jet engine: 1) in the jet engine a part of the air bypassed and exhausted to atmosphere after the first (two) stages of LP compressor. About half of the thrust is produced by the fan exhaust; 2) a jet engine incorporating a turbine-driven air compressor to take in and compress the air for the combustion fuel, the gases of combustion being used both to rotate the turbine and to create a thrust-producing jet.