Ceramic blade attachment system

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Title: Ceramic blade attachment system

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Abstract

A turbine blade having a preestablished rate of thermal expansion is attached to a turbine wheel having a preestablished rate of thermal expansion being greater than the preestablished rate of thermal expansion of the turbine blade. The turbine blade has a root portion having a pair of recessed portions thereon. The turbine wheel includes a plurality of openings in which the turbine blade is positioned. Each of the openings have a pair of grooves therein in which are positioned a pair of pins having a generally rectangular cross-section and a reaction surface thereon. A pair of cylindrical rollers interposed respective ones of the pair of reaction surfaces and the pair of recessed portions. The attachment system or turbine assembly provides an economical, reliable and effective attachment of a component having a preestablished rate of thermal expansion to a component having a greater preestablished rate of thermal expansion. 3 figures.

Inventors:: Boyd, G L

Issue Date:: 1994-12-13

Research Org.:: Solar Turbines Inc

OSTI Identifier:: 6668325

Patent Number(s):: 5372481

Application Number:: PPN: US 8-159093

Assignee:: Solar Turbine Incorporated, San Diego, CA (United States)

DOE Contract Number:: AC02-92CE40960

Resource Type:: Patent

Resource Relation:: Patent File Date: 29 Nov 1993

Country of Publication:: United States

Language:: English

Subject:: 20 FOSSIL-FUELED POWER PLANTS; 13 HYDRO ENERGY; TURBINE BLADES; COUPLINGS; THERMAL EXPANSION; TURBINES; TURBOMACHINERY; EQUIPMENT; EXPANSION; MACHINERY; 200104* - Fossil-Fueled Power Plants- Components; 130700 - Hydro Energy- Power-Conversion Systems

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                    Boyd, G L. Ceramic blade attachment system.  United States: N. p., 1994. 
        Web.

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                    Boyd, G L. Ceramic blade attachment system.  United States.

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                    Boyd, G L. Tue .  
        "Ceramic blade attachment system".  United States.

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@article{osti_6668325,

  title        = {Ceramic blade attachment system},

  author       = {Boyd, G L},

  abstractNote = {A turbine blade having a preestablished rate of thermal expansion is attached to a turbine wheel having a preestablished rate of thermal expansion being greater than the preestablished rate of thermal expansion of the turbine blade. The turbine blade has a root portion having a pair of recessed portions thereon. The turbine wheel includes a plurality of openings in which the turbine blade is positioned. Each of the openings have a pair of grooves therein in which are positioned a pair of pins having a generally rectangular cross-section and a reaction surface thereon. A pair of cylindrical rollers interposed respective ones of the pair of reaction surfaces and the pair of recessed portions. The attachment system or turbine assembly provides an economical, reliable and effective attachment of a component having a preestablished rate of thermal expansion to a component having a greater preestablished rate of thermal expansion. 3 figures.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1994},

  month        = {12}

}

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