SEALING ASSEMBLY FOR TURBINE MACHINE (VERSIONS) Russian patent published in 2016 - IPC F01D11/02 

FIELD: machine building.

SUBSTANCE: seal assembly comprises arched packing ring segments and pressing elements. Arched packing ring segments are disposed between rotor and turbomachine stationary housing and have inter-segment extending along radial axis of rotor. Each pressing element comprises two resilient elements forming a V-shape if seen along rotor axis, located between stationary housing and arched segments and connected to housing and segments. Arched segment has a pair of pressing elements symmetric about axis, dividing in halves corresponding arched segment, and located at equal distance from said axis. In another version of seal assembly of turbomachine pressing elements have a V-shape.

EFFECT: group of inventions makes it possible to provide free radial displacement of segments of seal in radial direction and axial leakage between stationary housing and rotor.

14 cl, 9 dwg