Turbomachine turbine assembly

A turbomachine turbine assembly with a longitudinal axis, the assembly comprising:

• an exhaust casing;
• an ejection cone arranged downstream of the exhaust casing, the ejection cone comprising:
• an outer annular wall for the flow of a primary air stream;
• and
• an acoustic box arranged radially inside said outer annular wall, the acoustic box having a radially inner annular wall;
• and
• a connection member interposed longitudinally between the exhaust casing and the inner annular wall of the ejection cone, the connection member being fastened to the exhaust casing and to the inner annular wall,
• wherein the upstream end of the outer annular wall is operably coupled to the connection member with a degree of freedom in the radial direction and a degree of freedom in the longitudinal direction,
• wherein the connection member comprises an outer annular wall including at its downstream end a connecting portion that is elastically deformable in the radial direction and in the longitudinal direction, and
• wherein the connecting portion comprises a plurality of circumferential tabs, each tab having a first circumferential end connected to the outer annular wall of the connection member and an opposite second circumferential end which is free and which is rigidly fastened at the upstream end of the outer annular wall of the ejection cone.