Abstract: A device for cooling a turbine casing in a turbomachine including a turbine is disclosed. The turbine includes several stages, at least one of the stages includes a nozzle assembly formed of an annular row of fixed vanes and an impeller mounted to rotate in a cylindrical shroud formed of ring sectors fixed to the casing, a cooling circuit including ducts carrying cooling air into cavities formed in the vanes of the nozzle assembly, and an air-carrying arrangement which carries air to casing upstream hooks for suspending the ring sectors.

Abstract: An assembly includes a vane and a cooling liner for cooling the vane, the vane having a central cavity with at least one first opening into which the liner extends, the liner having a flange fixed to the rim of the opening. This assembly includes, near the flange, a peripheral insert inserted between the wall of the liner and the wall of the opening.

Abstract: A bladed stator sector for a turbo-engine reduces the occurrence of thermally-induced stress cracks in stator blades by increasing the flexibility of the sectors by using one or more cutouts. The stator sector includes at least one stator blade between inner and outer platforms and at least one flange on one or more of the platforms. Each flange has a first end portion fixed to one of the platforms and a second end portion that is not fixed to either of the platforms. The one or more cutouts may be located on the flange and may be non-opening.

Abstract: Device for cooling a turbine casing in a turbomachine, this turbine comprising several stages each including a nozzle assembly (18) formed of an annular row of fixed vanes (20) and an impeller mounted to rotate in a cylindrical shroud formed of ring sectors (34) fixed to the casing, and a cooling circuit comprising ducts carrying cooling air into cavities (46) formed in the vanes (20) of the nozzle assembly, and means for carrying air to casing upstream hooks (72) for suspending the ring sectors (34).

Abstract: The assembly of the invention is comprised of a vane (2) and of a cooling liner (6) for cooling the vane (2), the vane (2) comprising a central cavity (5) with at least one first opening (7) into which the liner (6) extends, the liner (6) comprising a flange (13) fixed to the rim (14) of the opening (7). This assembly is one which comprises, near the flange (13), a peripheral insert (16) inserted between the wall of the liner (6) and the wall (7?) of the opening (7). Thus the joint at the flange (13) is sealed.