DEVICE FOR AIR BLEED BETWEEN COMPRESSORS OF GAS- TURBINE ENGINE Russian patent published in 2001 - IPC

FIELD: aircraft and ground gas-turbine engine compressors. SUBSTANCE: device is mounted on periphery of intermediate channel between compressors and has bypass valves that function to provide communication, when in open position, between intermediate channel and outer-loop channels as well as engine supercharging and cooling spaces. Annular channel arranged between intermediate channel and valves at acute angle to annular channel on its periphery is connected at outlet through set of separate passages to supercharging and cooling spaces of engine through pipelines. Provision is made for discharging pollutants and for reducing air flow variations at inlet of high-pressure condenser with valves held open. EFFECT: enhanced reliability of engine. 3 dwg