CMC hanger sleeve for CMC shroud
AssigneeGeneral Electric Company
InventorDavid Scott Stapleton
Life of this patent
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Abstract
According to some embodiments, a ceramic matrix composite (CMC) hanger sleeve is provided for retaining a ceramic matrix composite shroud panel. The sleeve may be connected to an upper hanger by a retainer or a casing. The hanger sleeve includes a radially inward opening with a flowpath panel disposed therein. When the CMC flowpath panel is worn due to time, rubs or both, the panel may be replaced without need to replace the entire assembly.
Claims20
A ceramic matrix composite (CMC) hanger assembly, comprising:
- a CMC hanger sleeve having a first CMC hanger sleeve leg and a second CMC hanger sleeve leg, wherein the first and second CMC hanger sleeve legs are spaced apart at a radial inward end;
- a CMC flowpath panel disposed between the first and second CMC hanger sleeve legs at the radial inward end;
- a spacing between a radial outer end of the first and second CMC hanger sleeve legs;
- and,
- a cooling air flowpath passing through the CMC hanger sleeve and cooling the CMC flowpath panel,
- wherein the first leg and the second leg have a surface for engaging a shoulder of the flowpath panel.
A ceramic matrix composite (CMC) hanger assembly, comprising:
- a CMC hanger sleeve having a first CMC hanger sleeve leg and a second CMC hanger sleeve leg, wherein the first and second CMC hanger sleeve legs are spaced apart at a radial inward end;
- a CMC flowpath panel disposed between the first and second CMC hanger sleeve legs at the radial inward end;
- a spacing between a radial outer end of the first and second CMC hanger sleeve legs;
- a cooling air flowpath passing through the CMC hanger sleeve and cooling the CMC flowpath panel;
- an upper shroud hanger connectable to a turbine case, the cooling air flowpath extending through the upper shroud hanger;
- and,
- first and second retaining legs depending from the upper shroud hanger,
- wherein at least a portion of the CMC hanger sleeve is integrally formed, and
- wherein the first and second CMC hanger sleeve legs are connected to the depending retaining legs.
A ceramic matrix composite (CMC) hanger assembly, comprising:
- a CMC hanger sleeve having a first CMC hanger sleeve leg and a second CMC hanger sleeve leg, wherein the first and second CMC hanger sleeve legs are spaced apart at a radial inward end;
- a CMC flowpath panel disposed between the first and second CMC hanger sleeve legs at the radial inward end;
- a spacing between a radial outer end of the first and second CMC hanger sleeve legs;
- a cooling air flowpath passing through the CMC hanger sleeve and cooling the CMC flowpath panel;
- and,
- a leaf seal extending between one of an upper shroud hanger and a retainer and the CMC flowpath panel.
Dependencies are inferred from the claim text.