BLADE FOR TURBINE MACHINE AND TURBINE MACHINE WITH SUCH BLADE Russian patent published in 2016 - IPC F01D5/08 

FIELD: machine building.

SUBSTANCE: blade for the turbine machine, in particular a gas turbine, is located on the turbine rotor, and has a body and a shank, made as a single part with the blade, a passage for cooling air supply to the shank to direct the cooling air to a cooler, and to remove the cooling air, located at the shank and connected by fluid with the passage for the cooling air supply. The body has the cooler inside the body, and the shank has two narrow sides and two wide sides. The cooling air removal duct has a nozzle on one of the narrow sides of the shank, and the nozzle is created using the hole. The blade shank has a top blade platform and a bottom blade platform. The top blade platform and the bottom blade platform are made as parts of a labyrinth seal in the assembled state in the turbine machine. The nozzle is located between the top blade platform and the bottom blade platform. The axial direction of the hole is inclined upwards at an angle from 92° to 135° relatively to the blade direction.

EFFECT: invention increases the efficiency of cooling of zones of extreme platform edges of adjacent nozzle guide vanes and an increased service life of these engine parts.

13 cl, 2 dwg