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Title: High temperature turbine engine structure

Abstract

A high temperature ceramic/metallic turbine engine includes a metallic housing which journals a rotor member of the turbine engine. A ceramic disk-like shroud portion of the engine is supported on the metallic housing portion and maintains a close running clearance with the rotor member. A ceramic spacer assembly maintains the close running clearance of the shroud portion and rotor member despite differential thermal movements between the shroud portion and metallic housing portion.

Inventors:
 [1];  [2]
  1. (Mesa, AZ)
  2. (Tempe, AZ)
Publication Date:
OSTI Identifier:
868304
Patent Number(s):
US 5116158
Assignee:
Allied-Signal Inc. (Morris Township, Morris County, NJ) OSTI
DOE Contract Number:
DEN3-167
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
temperature; turbine; engine; structure; ceramic; metallic; housing; journals; rotor; disk-like; shroud; portion; supported; maintains; close; running; clearance; spacer; assembly; despite; differential; thermal; movements; running clearance; close running; engine structure; housing portion; differential thermal; metallic housing; turbine engine; shroud portion; temperature turbine; temperature ceramic; thermal movements; spacer assembly; assembly maintains; metallic turbine; ceramic spacer; ceramic disk-like; despite differential; disk-like shroud; thermal movement; /403/411/

Citation Formats

Carruthers, William D., and Boyd, Gary L. High temperature turbine engine structure. United States: N. p., 1992. Web.
Carruthers, William D., & Boyd, Gary L. High temperature turbine engine structure. United States.
Carruthers, William D., and Boyd, Gary L. 1992. "High temperature turbine engine structure". United States. doi:. https://www.osti.gov/servlets/purl/868304.
@article{osti_868304,
title = {High temperature turbine engine structure},
author = {Carruthers, William D. and Boyd, Gary L.},
abstractNote = {A high temperature ceramic/metallic turbine engine includes a metallic housing which journals a rotor member of the turbine engine. A ceramic disk-like shroud portion of the engine is supported on the metallic housing portion and maintains a close running clearance with the rotor member. A ceramic spacer assembly maintains the close running clearance of the shroud portion and rotor member despite differential thermal movements between the shroud portion and metallic housing portion.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1992,
month = 1
}

Patent:

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  • This patent describes a combustion turbine engine. It comprises: an inlet, an outlet, and a flow path communicating a flow of fluid therebetween, the engine including a rotatable compressor inducting a flow of ambient air via the inlet and delivering this air pressurized to a combustor, means delivering a flow of fuel to the combustor to support combustion in the pressurized air to produce a flow of high temperature combustion products, and a turbine expanding the combustion products for discharge into ambient air via the outlet to derive mechanical power therefrom driving the compressor.
  • A high temperature turbine engine includes a hybrid ceramic/metallic rotor member having ceramic/metal joint structure. The disclosed joint is able to endure higher temperatures than previously possible, and aids in controlling heat transfer in the rotor member.
  • A hybrid ceramic/metallic fastener (bolt) includes a headed ceramic shank carrying a metallic end termination fitting. A conventional cap screw threadably engages the termination fitting to apply tensile force to the fastener.
  • A high temperature turbine engine includes a rotor portion having axially stacked adjacent ceramic rotor parts. A ceramic/ceramic joint structure transmits torque between the rotor parts while maintaining coaxial alignment and axially spaced mutually parallel relation thereof despite thermal and centrifugal cycling.
  • A hybrid ceramic/metallic fastener (bolt) includes a headed ceramic shank carrying a metallic end termination fitting. A conventional cap screw threadably engages the termination fitting to apply tensile force to the fastener.