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Title: Thin-walled reinforcement lattice structure for hollow CMC buckets

A hollow ceramic matrix composite (CMC) turbine bucket with an internal reinforcement lattice structure has improved vibration properties and stiffness. The lattice structure is formed of thin-walled plies made of CMC. The wall structures are arranged and located according to high stress areas within the hollow bucket. After the melt infiltration process, the mandrels melt away, leaving the wall structure to become the internal lattice reinforcement structure of the bucket.
Inventors:
Issue Date:
OSTI Identifier:
1366729
Assignee:
GENERAL ELECTRIC COMPANY NETL
Patent Number(s):
9,689,265
Application Number:
13/442,077
Contract Number:
FC26-05NT42643
Resource Relation:
Patent File Date: 2012 Apr 09
Research Org:
GENERAL ELECTRIC COMPANY, Schenectady, NY (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Other works cited in this record:

Composite ceramic gas turbine blade
patent, August 1981

Process for the manufacture of turbine blades cooled by means of a porous body and product obtained by the process
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Bimetallic turbine airfoil
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Hollow composite turbine blade
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Double-wall airfoil
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Turbine bucket for use in gas turbine engines and methods for fabricating the same
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Cmc Component, Power Generation System And Method Of Forming A Cmc Component
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