Patent ID: 11891957
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. An outlet seal that connects an outlet flange of a combustor and a shroud of a stator vane of a turbine, the seal comprising:
a seal body extending in a circumferential direction with respect to an axis; and
a lid member provided at an end of the seal body in the circumferential direction to extend in an axial direction in which the axis extends and in a radial direction with respect to the axis, wherein
the seal body includes
a combustor connecting portion that is formed on an axial first side of the seal body and that is connected to the outlet flange, the axial first side being one side in the axial direction,
a stator vane connecting portion that is formed on an axial second side of the seal body and that is connected to the shroud, the axial second side being the other side in the axial direction, and
one or more recessed portions recessed in the radial direction or in the axial direction and extending in the circumferential direction,

the combustor connecting portion includes
a flange first groove side plate extending in the circumferential direction and in the radial direction,
a flange groove bottom plate extending in the circumferential direction and extending from an end on a radial first side of the flange first groove side plate toward the axial first side, the radial first side being one side in the radial direction, and
a flange second groove side plate extending in the circumferential direction and extending from an end on the axial first side of the flange groove bottom plate toward a radial second side that is the other side in the radial direction,

the flange first groove side plate, the flange groove bottom plate, and the flange second groove side plate form a flange fitting groove recessed to the radial first side and extending in the circumferential direction,
the lid member is disposed at a position of an end of at least one recessed portion of the one or more recessed portions in the circumferential direction to overlap a recessed space in the axial direction and in the radial direction, the recessed space being formed by the at least one recessed portion,
the flange first groove side plate includes a first recessed portion of the one or more recessed portions in a radial second side region including an end on the radial second side of the flange first groove side plate, the first recessed portion being recessed toward the axial second side and extending in the circumferential direction, and
the lid member includes a first lid member disposed at a position of an end of the first recessed portion in the circumferential direction to overlap a first recessed space in the axial direction and in the radial direction, the first recessed space being formed by the first recessed portion.