Flexibly mounted ceramic matrix composite seal segments
AssigneesROLLS-ROYCE plc, Rolls-Royce North American Technologies Inc., Rolls-Royce High Temperature Composites Inc.
InventorsDaniel Kent Vetters, Todd Engel, Matt Brandt
Life of this patent
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Abstract
A segmented turbine shroud for radially encasing a turbine in a gas turbine engine comprises a carrier comprising a flange; a ceramic matrix composite (CMC) seal segment comprising a portion defining a pin-receiving bore; an elongated pin extending through the pin-receiving bore; a bushing surrounding the elongated pin within the bore; and a flexible mounting member, the flexible mounting member being connected to the bushing and the carrier flange to thereby flexibly mount the CMC seal segment to the carrier.
Claims16
A segmented turbine shroud for radially encasing a turbine in a gas turbine engine, the shroud comprising:
- a carrier comprising a flange;
- a ceramic matrix composite (CMC) seal segment comprising a portion defining a pin-receiving bore;
- an elongated pin extending through said pin-receiving bore;
- a bushing surrounding said elongated pin within said bore and having at least a portion extending axially beyond a first end of the bore;
- and
- a flexible mounting member, said flexible mounting member being connected to said bushing at said portion extending axially beyond the first end of the bore and said carrier flange to thereby flexibly mount said CMC seal segment to said carrier.
A segmented turbine shroud for radially encasing a turbine in a gas turbine engine, the shroud comprising:
- a carrier comprising a flange;
- a ceramic matrix composite (CMC) seal segment comprising an arcuate flange having a surface facing the turbine, a portion defining a pin-receiving seal segment bore which is radially spaced from said arcuate flange by a spacing flange extending radially outward from said arcuate flange;
- a mounting ring defining a mounting ring bore, said mounting ring disposed at a first axial end of said seal segment bore;
- a flexible mounting member connected to said carrier flange and said mounting ring;
- and
- an elongated pin extending beyond the first axial end of said seal segment bore and into said mounting ring bore.
Dependencies are inferred from the claim text.