ROTARY DEVICE FOR TURBOMACHINE, TURBINE FOR TURBOMACHINE AND TURBOMACHINE Russian patent published in 2018 - IPC F01D5/30 F01D11/00 

FIELD: turbines or turbomachines.

SUBSTANCE: rotary device for a turbomachine comprises a disk, the outer periphery of which is formed by alternating cavities and teeth, and blades. Blades extend radially from the disk, are axially inserted into said cavities of the disk and are held therein in the radial direction. Teeth of the disk and the root parts of the blades have at their upstream and / or downstream axial ends of the axial shoulders located in the circumferential direction close to each other with alternation and together forming a continuous cylindrical surface. Continuous cylindrical surface faces in the radial direction towards the inside of the disk and an annular seal is held thereon by means of a part attached to the disk. Part attached to the disk extends under the shoulders and presses the annular seal to the said cylindrical surface in the radial direction. Other inventions of the group relate to a turbine for a turbomachine and a turbomachine comprising a rotary device as defined above.

EFFECT: group of inventions allows to increase the reliability of the seal and to ensure a decrease in the circulation of cooling air between the blades.

13 cl, 6 dwg