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Title: Ceramic tile expansion engine housing

An expandable ceramic tile housing for a high temperature engine is disclosed wherein each tile is independently supported in place in an interlocking matrix by retention mechanisms which mechanically couple the individual ceramic tiles to an outer metal support housing while maintaining thermal isolation of the metal housing from the ceramic tiles. The ceramic tiles are formed with either an octagonal front face portion and a square shank portion or a square front face portion with an octagonal shank portion. The length of the sides of the octagonal front face portion on one tile is equal to the length of the sides of the square front face portion of adjoining tiles to permit formation of an interlocking matrix. Fibrous ceramic sealing material may be placed between radial and tangential facing surfaces of adjacent tiles to limit radial gas flow there between. Labyrinth-sealed pressure-controlled compartments may be established between the tile housing and the outer metal support housing to control radial gas flow. 8 figures.
Inventors:
Issue Date:
OSTI Identifier:
35049
Assignee:
PTO; SCA: 330000; PA: EDB-95:063989; SN: 95001365523
Patent Number(s):
US 5,404,793/A/
Application Number:
PAN: 8-070,524
Contract Number:
W-7405-ENG-48
Resource Relation:
Other Information: PBD: 11 Apr 1995
Research Org:
University of California
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; HEAT ENGINES; LINERS; DESIGN; INSTALLATION; CERAMICS; SEALING MATERIALS