Shroud attaching structure, shroud assembly, and shroud element in gas turbine
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorYoshiaki Kusumoto
Life of this patent
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Abstract
A shroud attaching structure of a gas turbine includes: a support provided around an axis of the gas turbine and inside a casing of the gas turbine in a radial direction; and a shroud assembly attached to the support so as to cover an inner peripheral surface of the support, the shroud assembly being formed by laminating a large number of plate-shaped shroud elements containing a ceramic matrix composite. The shroud elements are lined up in a circumferential direction of the support. The adjacent shroud elements are arranged so as to be slidable on each other.
Claims19
A shroud attaching structure of a gas turbine, the shroud attaching structure comprising:
- a support provided around an axis of the gas turbine and inside a casing of the gas turbine in a radial direction;
- and
- a shroud assembly attached to the support so as to cover an inner peripheral surface of the support, the shroud assembly is formed by a large number of laminated shroud pieces containing a ceramic matrix composite,
- wherein each of the shroud pieces is entirely plate-shaped so that each of the shroud pieces is flat and straight,
- wherein the shroud pieces are lined up in a circumferential direction of the support such that a thickness direction of each of the shroud pieces corresponds to the circumferential direction, and
- wherein the adjacent shroud pieces are arranged so as to be slidable on each other.
A shroud assembly attached to a support provided inside a casing of a gas turbine in a radial direction, the shroud assembly comprising
- shroud pieces containing a ceramic matrix composite, wherein
- wherein each of the shroud pieces is entirely plate-shaped so that each of the shroud pieces is flat and straight,
- the plate-shaped shroud pieces are laminated so as to be lined up in a circumferential direction of the support such that a thickness direction of each of the shroud pieces corresponds to the circumferential direction, and
- the adjacent shroud pieces are arranged so as to be slidable on each other.
Shroud pieces of a gas turbine, the shroud pieces included in a shroud assembly attached to a support provided inside a casing of the gas turbine engine in a radial direction, adjacent shroud pieces are arranged so as to be slidable on each other, the shroud pieces contain a ceramic matrix composite, each of the shroud pieces comprising:
- a plate-shaped main body structure arranged inside the support in the radial direction;
- and
- at least one engaging structure provided at a side of the main body structure, the side of the main body is opposed to the support, and the at least one engaging structure is engaged with an engaged structure of the support, wherein
- the shroud pieces are entirely plate-shaped bodies that are each flat and straight, and which form the shroud assembly by being laminated so as to be lined up in a circumferential direction of the support such that a thickness direction of each of the shroud pieces corresponds to the circumferential direction.
Dependencies are inferred from the claim text.