STAGE OF TURBINE OR COMPRESSOR OF JET TURBINE ENGINE Russian patent published in 2013 - IPC F01D25/24 

FIELD: engines and pumps.

SUBSTANCE: stage of a jet turbine engine includes a rotor wheel installed inside a ring divided into sectors and installed on the housing and containing a circumferential projection. The projection is pressed to the annular rail of the housing with a locking member of C-section, which is put in axial direction on the housing rail and on the ring projection. The locking element includes internal and external round walls connected to each other with a radial wall. A cylindrical thermal protection plate is inserted between the ring and the internal wall of the element. The thermal protection plate or the internal wall of the element include a boss made in radial direction to the element or to the plate respectively and containing means of radial support on the element or the plate. The other invention of the group refers to the jet turbine engine containing the above stage. One invention refers to an annular locking element containing two round walls connected with a radial wall; at that, its internal wall includes a boss directed radially inward. One more invention refers to the cylindrical thermal protection plate for the above stage, which contains a boss projecting on its external surface.

EFFECT: inventions allow eliminating vibrations of the thermal protection plate.

9 cl, 4 dwg