SHROUD CARTRIDGE HAVING A CERAMIC MATRIX COMPOSITE SEAL SEGMENT

摘要

A shroud for radially encasing a turbine in a gas turbine engine is provided. The shroud comprises a carrier which defines a pin-receiving carrier bore, and a ceramic matrix composite (CMC) seal segment comprising an arcuate flange with a surface facing the turbine and a part that defines a pin-receiving seal segment bore. The seal segment bore is radially spaced from the arcuate flange by a spacing flange which extends radially outward from the arcuate flange to effect receipt within the seal segment bore of an elongated pin. The elongated pin extends through the carrier bore and the seal segment bore, and the elongated pin has a lateral cross-sectional dimension of at least three-eighths of an inch.

主权项

1. A segmented turbine shroud for radially encasing a turbine in a gas turbine engine, the shroud comprising:
a carrier comprising a portion defining a pin-receiving carrier bore; a ceramic matrix composite (CMC) seal segment comprising an arcuate flange having a surface facing the turbine and a portion defining a pin-receiving seal segment bore; an elongated pin extending through said carrier bore and said seal segment bore, wherein said elongated pin comprises a lateral cross-sectional dimension of at least three-eighths inches; and wherein said CMC seal segment portion defining a pin-receiving seal segment bore is radially spaced from said arcuate flange by a spacing flange extending radially outward from said arcuate flange to thereby effect receipt within the seal segment bore of said elongated pin.