SEPARATOR DESIGNED FOR FEEDING COOLING AIR TO TURBINE; GAS TURBINE ENGINE Russian patent published in 2013 - IPC F23R3/50 

FIELD: machine building.

SUBSTANCE: annular combustion chamber is equipped with a separator located between a radially internal wall and an internal flange of that combustion chamber. Separator includes a tubular part centred on the main axis of the above combustion chamber, and the inlet end of which is located at the inlet of the opening located maximum close as to the flow from the number of openings made in radially internal wall of the combustion chamber, and an attachment section rigidly attached to the combustion chamber. Tubular part divides, starting from its inlet end, the channel located between radially internal wall of the combustion chamber and the internal flange into an internal annular channel and an external annular channel so that the air flow moving along radially internal wall can be separated into inside air flow (Fi) passing between the tubular part and internal flange of the combustion chamber, and outside air flow (Fe) passing between radial internal wall and tubular part. Tubular part is generally parallel to inner shell of the combustion chamber so that external annular channel has a constant cross section.

EFFECT: invention allows reducing the heating of the air flow intended to cool down the turbine and reduce the disturbance in that air flow, which have been caused by instable fuel combustion in the combustion chamber.

12 cl, 6 dwg