STAGE OF TURBOMACHINE, TURBINE, COMPRESSOR AND TURBOMACHINE CONTAINING SUCH STAGE Russian patent published in 2013 - IPC F01D25/24 

FIELD: machine building.

SUBSTANCE: turbomachine stage includes a wheel with blades, which is enveloped with a ring divided into sectors, retained with a housing and containing a circular projection pressed in radial direction on an annular guide of the housing by means of elastic locks with an actually C-shaped cross section. Locks in the axial direction are put on the housing guide and the ring projection. Each sector of the ring is retained on the housing guide by means of at least one lock that is put on the circular end part of the ring sector projection only and on the corresponding part of the housing guide. Other inventions of the group refer to a turbomachine, as well as to a compressor and a turbine of the turbomachine, which contains at least one above mentioned stage.

EFFECT: inventions allow increasing service life of a lock, as well as reducing the weight of the attachment point of the ring sector on the turbomachine housing.

12 cl, 6 dwg