# US 10,371,008 B2 · Turbine shroud > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,371,008 B2 - Document ID: US10371008B2 - Status: Granted - Kind: B2 - Application number: 14/972,444 - Filed: 2015-12-17 - Published: 2016-06-23 - Granted: 2019-08-06 - Earliest claimed: 2014-12-23 - Assignees: Rolls-Royce North American Technologies Inc.; ROLLS-ROYCE plc - Applicants: Rolls-Royce Corporation; Rolls-Royce North American Technologies, Inc. - Inventors: Aaron D. Sippel; Bruce E. Varney; Ted J. Freeman; Jeffrey A. Walston; Jun Shi - Web page: https://patentgrep.com/patent/US10371008B2 ## CPC - F01D 25/24: Casings (modified for heating or cooling F01D25/14); Casing parts, e.g. diaphragms, casing fastenings (casings for rotary machines or engines in general F16M {; special arrangements in stators dealing with breaking-off of part of rotor F01D21/045}) - F01D 5/284: {Selection of ceramic materials} - F01D 11/08: for sealing space between rotor blade tips and stator (specially-shaped blade tips therefor F01D5/20) - F01D 11/12: using a rubstrip, e.g. erodible. deformable or resiliently-biased part - F01D 11/122: {with erodable or abradable material (blades having cutting or grinding tips F01D5/20)} - F01D 25/005: {Selecting particular materials} - F01D 25/246: {Fastening of diaphragms or stator-rings} - Y02T 50/60: Efficient propulsion technologies, e.g. for aircraft - F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D) - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A turbine shroud for a gas turbine engine includes an annular metallic carrier and a ceramic-containing blade track. A connection is formed between the annular metallic carrier and the ceramic-containing blade track by insert pins extending through metallic carrier into the ceramic-containing blade track. ## Claims ### Claim 1 A turbine shroud comprising an annular metallic carrier formed to include a plurality of apertures that extend in a radial direction through the annular metallic carrier, a solid blade track formed as a continuous full hoop and including a ceramic annular runner and a plurality of pin receivers that extend inwardly in a radial direction partway into the ceramic annular runner from an outer radial surface toward an inner radial surface of the ceramic annular runner, and a plurality of insert pins each arranged to extend through one of the plurality of apertures formed in the annular metallic carrier into a corresponding one of the plurality of pin receivers to locate the ceramic annular runner relative to the annular metallic carrier. ### Claim 2 (depends on 1) The turbine shroud of claim 1, wherein the ceramic annular runner includes a forward section, an aft section spaced apart axially from the forward section, and a midsection extending between the forward section and the aft section and the pin receivers are formed in the midsection of the ceramic annular runner. ### Claim 3 (depends on 1) The turbine shroud of claim 1, wherein the plurality of pin receivers are spaced apart from each other circumferentially around the ceramic annular runner. ### Claim 4 (depends on 1) The turbine shroud of claim 1, wherein turbine shroud comprises at least three insert pins and the ceramic annular runner comprises at least three corresponding pin receivers. ### Claim 5 (depends on 1) The turbine shroud of claim 1, wherein each of the pin receivers includes an axial dimension and a circumferential dimension and the axial dimension is larger than the circumferential dimension. ### Claim 6 (depends on 1) The turbine shroud of claim 1, wherein the ceramic annular runner consists essentially of ceramic matrix composite material. ### Claim 7 (depends on 1) The turbine shroud of claim 1, wherein the ceramic annular runner consists essentially of silicon carbide matrix and silicon carbide fibers. ### Claim 8 (depends on 1) The turbine shroud of claim 1, wherein the insert pin comprises a metallic material. ### Claim 9 (depends on 1) The turbine shroud of claim 1, further comprising a seal positioned radially between the annular metallic carrier and the ceramic annular runner. ### Claim 10 (depends on 1) The turbine shroud of claim 1, wherein the outer radial surface of the ceramic annular runner is formed without radially extending protrusions. ### Claim 11 (depends on 2) The turbine shroud of claim 2, wherein the outer radial surface defines at least a portion of the forward section, midsection, and aft section. ### Claim 12 A turbine shroud comprising a carrier adapted to be coupled to a turbine case, a solid blade track including a ceramic full-hoop, annular runner and a cylindrical boss that extends radially outward away from the ceramic full-hoop, annular runner and the cylindrical boss formed to include a pin receiver that extends radially inward into the cylindrical boss, and an insert pin arranged to extend through the carrier into the pin receiver to block rotation of the ceramic annular runner relative to the carrier. ### Claim 13 (depends on 12) The turbine shroud of claim 12, wherein the ceramic annular runner includes a forward section, an aft section spaced apart axially from the forward section, and a midsection extending between the forward section and the aft section and the cylindrical boss is formed in the midsection of the ceramic annular runner. ### Claim 14 (depends on 12) The turbine shroud of claim 12, wherein the ceramic annular runner consists essentially of ceramic matrix composite material. ### Claim 15 (depends on 12) The turbine shroud of claim 12, wherein the ceramic annular runner consists essentially of silicon carbide matrix and silicon carbide fibers. ### Claim 16 (depends on 12) The turbine shroud of claim 12, wherein the insert pin comprises a metallic material. ### Claim 17 A method of assembling a turbine shroud, the method comprising the steps of providing a carrier formed to include a plurality of apertures that extend in a radial direction through the carrier, a solid annular runner comprising ceramic matrix composite materials and formed to include pin receivers that extend inwardly in a radial direction partway into the solid ceramic annular runner from an outer radial surface toward an inner radial surface of the solid ceramic annular runner, and a plurality of insert pins, rotating the solid annular runner to a predetermined orientation relative to the carrier so that the pin receivers formed in the solid annular runner are aligned with the plurality of apertures formed in the carrier, nesting the solid annular runner into the carrier so that the solid annular runner is concentric with the carrier, and placing the plurality of insert pins into corresponding apertures and pin receivers to thereby establish a connection between the solid annular runner and the carrier. ### Claim 18 (depends on 17) The method of claim 17, wherein the solid annular runner includes a forward section, an aft section spaced apart axially from the forward section, and a midsection extending between the forward section and the aft section and the pin receivers are formed in the midsection of the solid annular runner. ### Claim 19 (depends on 17) The method of claim 17, wherein the outer radial surface of the solid ceramic annular runner is formed without radially extending protrusions. ### Claim 20 (depends on 18) The method of claim 18, wherein the outer radial surface defines at least a portion of the forward section, midsection, and aft section.