# US 10,309,244 B2 · CMC shroud support system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,309,244 B2 - Document ID: US10309244B2 - Status: Granted - Kind: B2 - Application number: 15/102,370 - Filed: 2014-12-04 - Published: 2016-10-27 - Granted: 2019-06-04 - Earliest claimed: 2013-12-12 - Assignees: General Electric Company - Applicants: General Electric Company - Inventors: Jason David Shapiro; Roger Lee Doughty; Michael John Franks - Web page: https://patentgrep.com/patent/US10309244B2 ## CPC - F01D 11/08: for sealing space between rotor blade tips and stator (specially-shaped blade tips therefor F01D5/20) - F01D 9/04: forming ring or sector - F01D 25/12: Cooling - 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 25/28: Supporting or mounting arrangements, e.g. for turbine casing - F02C 3/04: having a turbine driving a compressor (power transmission arrangements F02C7/36; control of working fluid flow F02C9/16) - F01D 11/122: {with erodable or abradable material (blades having cutting or grinding tips F01D5/20)} - F05D 2220/32: in gas turbines - F05D 2300/603: Composites; e.g. fibre-reinforced - F05D 2300/6033: Ceramic matrix composites [CMC] - 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) - F02C: GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines F01D; jet-propulsion plants F02K; construction of compressors or fans F04; generating combustion products of high pressure or high velocity F23R; using gas turbines in compression refrigeration plants F25B11/00) - F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A shroud and shroud hanger are provided wherein at least the shroud is formed of ceramic matrix composite material. The shroud and hanger extend in a circumferential direction. A generally C-shaped clip extends radially to retain the hanger and shroud together. ## Claims ### Claim 1 A segmented shroud assembly, comprising: a shroud hanger which extends in a circumferential direction between first and second slash faces and has an axial dimension, a cavity disposed between an axially forward end and an axially rearward end and extending circumferentially, at least one of the first and second slash faces having a recess defined therein; a ceramic matrix composite (CMC) shroud disposed within said cavity; said CMC shroud having a lower wall, at least one side wall, at least one upper wall and at least a partially hollow interior; and, a c-clip connecting said shroud hanger and said CMC shroud; said c-clip disposed at an end of said shroud hanger and engaging the recess and a lower surface of said upper wall. ### Claim 2 (depends on 1) The segmented shroud assembly of claim 1, said c-clip having an upper rib for engaging the recess of said shroud hanger and a lower rib for engaging said CMC shroud. ### Claim 3 (depends on 1) The segmented shroud assembly of claim 1 further comprising a baffle positioned within said at least partially hollow interior. ### Claim 4 (depends on 1) The segmented shroud assembly of claim 1, said recess formed to allow said c-clip to fit flush with a slash face of said shroud hanger. ### Claim 5 (depends on 1) The segmented shroud assembly of claim 1, said CMC shroud having an opening in said upper wall. ### Claim 6 (depends on 5) The segmented shroud assembly of claim 5, said opening being centered in the upper wall of the CMC shroud, thereby creating spaced-apart first and second upper wall sections, the first upper wall section being disposed adjacent a first end of the CMC shroud and the second upper wall section being disposed adjacent to a second end of the CMC shroud. ### Claim 7 (depends on 6) The segmented shroud assembly of claim 6 further comprising a second opening in the upper wall, the second opening being disposed adjacent to at least one of the first and second ends of said shroud. ### Claim 8 (depends on 7) The segmented shroud assembly of claim 7 further comprising a support depending from one of said first upper wall section and said second upper wall section. ### Claim 9 (depends on 8) The segmented shroud assembly of claim 8, said support having a width in a circumferential dimension which is greater than a width of said one of said first upper wall section and said second upper wall section. ### Claim 10 (depends on 5) The segmented shroud assembly of claim 5 further comprising said opening being at a circumferential end of said upper wall. ### Claim 11 (depends on 1) The segmented shroud assembly of claim 1, said shroud having a spacer disposed on said at least one upper wall. ### Claim 12 (depends on 1) The segmented shroud assembly of claim 1, said c-clip limiting motion of said shroud in a radial direction.