Ceramic matrix composite seal segment for a gas turbine engine

US10619503B2 · kind B2 · utility

Assignees

• Rolls-Royce High Temperature Composites, Inc. · US
• Rolls-Royce Corporation · US
• Rolls-Royce North American Technologies Inc. · US

Inventors

• Daniel K. Vetters · Indianapolis, US
• David J. Thomas · Brownsburg, US
• Ted J. Freeman · Danville, US
• Joseph P. Lamusga · Indianapolis, US
• Rick Uskert · Monkton, US
• Douglas D. Dierksmeier · Franklin, US
• Jun Shi · Carmel, US
• Todd Engel · San Francisco, US
• Matt Brandt · Indianapolis, US

Key dates

• Filing date: Jul 26, 2017
• Grant date: Apr 14, 2020
• Expiry date: Apr 30, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2300/6033
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A ceramic matrix composite (CMC) seal segment for use in a segmented turbine shroud for radially encasing a turbine in a gas turbine engine. The CMC seal segment comprises an arcuate flange having a surface facing the turbine and a portion defining a bore for receiving an elongated pin, with the bore having a length that is at least 70% of the length of the elongated pin received therein. The CMC seal segment is carried by the carrier by at least one of the elongated pins being received within the bore. The CMC seal segment portion defining a pin-receiving bore is radially spaced from the arcuate flange by a spacing flange extending radially outward from the arcuate flange.