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

Claim 14:
15. 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,
one or more recessed portions recessed in the radial direction or in the axial direction and extending in the circumferential direction, and
a flange first groove side plate extending in the circumferential direction and in the radial direction,

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

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