TURBINE BLADE Russian patent published in 2010 - IPC F01D5/18 

FIELD: machine building.

SUBSTANCE: turbine blade consists of profiled leaf streamlined with working gas; said leaf has front edge for working gas accumulation and back edge for working gas running off; notably, back edge passes along main axis of blade leaf from zone of shank end of blade leaf to opposite zone of head. Further, the turbine blade consists of the first system of channels and the second system of channels for separate direction of two different mediums separately supplied into the turbine blade. The first channel system ends in at least one first output orifice positioned in the zone of the back edge to blow the first medium into working gas. At least one second output orifice located in the zone of the back edge for blow of the second medium is connected with the second channel system. When looked along main axis of the blade the second output orifice is positioned at least partially at the same height as the first output orifice.

EFFECT: reliable prevention of inside burning in turbine blade of gas turbine to maintain operation life of turbine blade; also prevention of damages in gas turbine.

21 cl, 20 dwg