Compliant shroud designs with variable stiffness
AssigneeGeneral Electric Company
InventorsRavindra Shankar Ganiger, Praveen Sharma, Jeffrey D. Carnes, Herbert Chidsey Roberts
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Abstract
Methods, apparatus, systems and articles of manufacture are disclosed. A shroud assembly of a gas turbine engine includes: a first shroud arm having a first end and a second end, the first end to couple to an outer wall and the second end to couple to a first shroud pad, and a second shroud arm having a first end and a second end, the first end to couple to the outer wall and the second end to couple to a second shroud pad, at least one of the first shroud pad or the second shroud pad to move radially outward toward the outer wall in response to a rotor blade contacting the at least one of the first shroud pad or the second shroud pad.
Claims20
A shroud assembly for a gas turbine engine, the shroud assembly comprising:
- a first shroud pad;
- a second shroud pad forming a split line with the first shroud pad, the split line unaligned with a radial axis of the gas turbine engine;
- a third shroud pad, the second shroud pad axially between the first shroud pad and the third shroud pad;
- an outer wall radially outboard of the first shroud pad and the second shroud pad;
- a first shroud arm extending between the first shroud pad and the outer wall;
- and
- a second shroud arm extending between the second shroud pad and the outer wall.
A gas turbine engine having a radial axis, the gas turbine engine comprising:
- a compressor;
- a turbine;
- and
- a shroud assembly for at least one of the compressor or the turbine, the shroud assembly including:
- an outer wall;
- a first shroud pad;
- a second shroud pad forming a split line with the first shroud pad, the split line unaligned with the radial axis of the gas turbine engine;
- a third shroud pad, the second shroud pad axially between the first shroud pad and the third shroud pad;
- a first shroud arm including:
- a first end coupled to the outer wall;
- and
- a second end coupled to the first shroud pad;
- and
- a second shroud arm including:
- a third end coupled to the outer wall;
- and
- a fourth end coupled to the second shroud pad.
A shroud assembly for a gas turbine engine, the shroud assembly comprising:
- a first shroud segment including:
- a first shroud pad;
- a first shroud arm extending radially outboard from the first shroud pad;
- a tab, the tab to extend parallel to axial axis of the gas turbine engine;
- a second shroud segment including:
- a second shroud pad;
- a second shroud arm extending radially outboard from the second shroud pad;
- and
- a cavity receiving the tab.
Dependencies are inferred from the claim text.