US 12,253,048 B2
Fastening of an exhaust cone in a turbomachine turbine
Thomas Vandellos, Moissy-Cramayel (FR); Benoit Carrere, Moissy-Cramayel (FR); Eric Conete, Moissy-Cramayel (FR); Jean-Philippe Joret, Moissy-Cramayel (FR); Vincent Devanlay, Moissy-Cramayel (FR); and Clément Marie Benoît Roussille, Moissy-Cramayel (FR)
Assigned to SAFRAN CERAMICS, Le Haillan (FR)
Appl. No. 18/251,965
Filed by SAFRAN CERAMICS, Le Haillan (FR)
PCT Filed Nov. 4, 2021, PCT No. PCT/FR2021/051948
§ 371(c)(1), (2) Date May 5, 2023,
PCT Pub. No. WO2022/096832, PCT Pub. Date May 12, 2022.
Claims priority of application No. 2011376 (FR), filed on Nov. 5, 2020; and application No. 2011377 (FR), filed on Nov. 5, 2020.
Prior Publication US 2023/0407814 A1, Dec. 21, 2023
Int. Cl. F02K 1/04 (2006.01); F02K 1/82 (2006.01)
CPC F02K 1/04 (2013.01) [F02K 1/827 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An assembly for a turbine of a turbomachine with a longitudinal axis, the assembly comprising:
an exhaust cone comprising an outer annular wall for the flow of a primary airflow and an annular box arranged radially inside the outer annular wall; and
an exhaust casing arranged upstream of and connected to the exhaust cone,
wherein the outer annular wall is arranged upstream from a downstream portion of the exhaust cone, and wherein one end of the outer annular wall or one end of the annular box is free and able to move relative to and has no mechanical connection with the downstream portion of the exhaust cone or the exhaust casing,
wherein the annular box comprises an inner annular wall arranged concentric with the outer annular wall, and the upstream end of the annular box corresponds to the upstream end of the inner annular wall and the downstream end of the annular box corresponds to the downstream end of the inner annular wall,
wherein:
the annular box is connected on the one hand to the exhaust cone and on the other hand to the exhaust casing, and wherein the upstream end of the outer annular wall is free to move relative to the exhaust casing, wherein the inner annular wall is connected at its upstream end to a shroud of the exhaust casing and at its downstream end to the exhaust cone, the outer annular wall is connected at its downstream end to the exhaust cone and the upstream end of the outer annular wall has no mechanical connection and is free to move in axial and radial movement relative to the shroud of the exhaust casing, and wherein the upstream end of the outer annular wall is arranged in sliding contact with the shroud of the exhaust casing; or
the outer annular wall of the exhaust cone is connected on the one hand to the downstream portion of the exhaust cone and on the other hand to the exhaust casing, and wherein the upstream end of the annular box is free to move relative to the exhaust casing, wherein the upstream end of the outer annular wall is connected to the shroud of the exhaust casing whereas the upstream end of the inner annular wall of the annular box has no connection with said shroud of the exhaust casing, and wherein the upstream end of the inner annular wall of the annular box is free to move in axial and radial movement relative to the shroud of the exhaust casing; or
the outer annular wall of the exhaust cone is connected on the one hand to the downstream portion of the exhaust cone and on the other hand to the exhaust casing, and wherein the downstream end of the annular box is free to move relative to the exhaust cone, wherein the upstream end of the outer annular wall is connected to the shroud of the exhaust casing and the upstream end of the inner annular wall of the annular box is also connected to the shroud of the exhaust casing, wherein the downstream end of the inner annular wall of the annular box has no connection with the exhaust cone, and the downstream end of the inner annular wall of the annular box is free to move, in axial and radial movement, relative to the shroud of the exhaust cone.