Patent ID: 8794908

Claim:
A stator stage of a turbomachine compressor, the stage comprising: an inner shroud and an outer shroud coaxial with the inner shroud; and substantially radial vanes extending between the inner and outer shrouds with radially outer ends of the vanes being welded to the outer shroud and with radially inner ends of the vanes being secured to the inner shroud, wherein the inner shroud comprises inner and outer rings which are coaxial and fastened one inside the other, the outer ring having orifices for passing the inner ends of the vanes and co-operating with the inner ring to define an annular cavity for housing inter-vane spacers for providing sealing and for damping vibration, each of which spacers is mounted between the radially inner ends of two adjacent vanes, each of said vanes having a suction side and a pressure side, wherein each inter-vane spacer includes a first curved longitudinal edge that is convex and matches the shape of the pressure side of the radially inner end of a first one of said vanes, and a second curved longitudinal edge that is concave and matches the shape of the suction side of the radially inner end of a vane adjacent to said first one of said vanes, and wherein the inter-vane spacers are made of an elastomer that is adapted to withstand a temperature of at least 300° C.