TURBOJET Russian patent published in 2013 - IPC F02K1/46 F02K3/06 

FIELD: engines and pumps.

SUBSTANCE: proposed turbojet comprises low-pressure turbine and adjustable leaf mixer including conical shell at its outlet. Conical shell is arranged between turbine and mixer to form mid annular chamber between gas channel of inner duct and air channel of outer duct. Annular chamber outlet is communicated via annular outlet slot with gas channel and air-gas flows mixing zone while its inlet is communicated with air intake composed by radial annular rig of turbine housing an mixer annular shell to cover flow section by axially displacing radial ring. There is a circular rib ot the outer side of the last working blade of the turbine, the radisl rib is installed at the external hausing of the turbine.

EFFECT: higher efficiency of mixing inner and outer duct flows, reduced hydraulic resistance, higher thrust at transonic conditions.

4 dwg