SYSTEM WITH GAS SEAL Russian patent published in 2017 - IPC F16J15/34 

FIELD: machine building.

SUBSTANCE: invention relates to a system with a gas seal (GS), a stator (S) and extending along the axis (X) the rotor (R) for sealing a gap seal (SGP) between the rotor (R) and the stator (S), comprising a rotating sealing ring (RSR) of the rotor and the stationary seal ring (SSR) of the stator, comprising a rotatable fastening element (FE), which fixes the sealing ring (RSR) of the rotor on the rotor (R) in the axial direction. Fixing element (FE) passes through at least part of the circumference in the circumferential direction (CD), the fastening element (FE) is arranged at least partly held in the axial and the circumferential direction (CD) gap (GP) with a radial height (GH) the gap between the rotor (R) and the rotary seal ring (RSR) rotor. The gap (GP) by the rotary seal ring (RSR) of the rotor is set by the surface (SRS) of the sealing ring and the rotor side (R) surface (RS) of the rotor, wherein the surface (SRS) of the sealing ring has a first recess (SRD), and the surface (RS) second rotor recess (RSD). Fixing element (FE) is located partially in the first recess (SRD) and partially in the second recess (RSD) such that the axial relative movement beyond a predetermined location area between the rotating sealing ring (RSR) of the rotor and the rotor (R) is only possible when the radial deformation of the fastening element (FE).

EFFECT: invention improves reliability of the seal.

11 cl, 2 dwg