GAS TURBINE ENGINE Russian patent published in 2014 - IPC F02K1/08 

FIELD: engines and pumps.

SUBSTANCE: gas turbine engine comprises outlet device with inner circuit discharge system and axial displacement mechanism. Inner circuit discharge system comprises shaped body, inner circuit outlet nozzle around said shaped central body making the cannel there between and plane of displacement at outlet nozzle peripheral end. Axial shift mechanism can vary shift plane area owing to inner circuit outlet nozzle shift. In compliance with second version, gas turbine engine comprises inner circuit outlet nozzle with strip mixer, taper shaped central body and combined outlet nozzle. Strip mixer can displace in axis between first and second positions. Peripheral end of outlet nozzle features inner circuit channel cross-section of maximum area at first position and minimum area at second position. Outer circuit channel cross-section has minimum area at first position and maximum area at second position.

EFFECT: decreased noise at takeoff and losses at cruising regime.

20 cl, 5 dwg