TURBINE WORN-IN SEAL ELEMENT Russian patent published in 2012 - IPC B22F7/00 F01D11/00 B22F3/12 

FIELD: process engineering.

SUBSTANCE: invention relates to machine building, particularly, to turbo machine flow section seals operated at higher temperatures and high-frequency oscillations. Element comprises bearing part made up of solid cellular structure making a carcass and worn-in part composed of powder metal particles adhered to bearing part and to each other. Note here that said cellular part is composed by interconnected shells of granules filled with worn-in powder material. Granules shells are composed by powder material particles of aforesaid bearing part. Note here that adhesion strength of said particles makes 70-90% of bearing part powder material particle strength while that of worn-in material powder particles in a cell makes 10-30% of particle material strength.

EFFECT: better conformability, higher strength and wear resistance.

24 cl, 2 dwg, 1 ex