Multiple piece turbine rotor blade

Kimmel, Keith D.; Plank, William L.

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A - human necessities
A01 - agriculture
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Title: Multiple piece turbine rotor blade

Abstract

A spar and shell turbine rotor blade with a spar and a tip cap formed as a single piece, the spar includes a bottom end with dovetail or fir tree slots that engage with slots on a top end of a root section, and a platform includes an opening on a top surface for insertion of the spar in which a shell made from an exotic high temperature resistant material is secured between the tip cap and the platform. The spar is tapered to form thinner walls at the tip end to further reduce the weight and therefore a pulling force due to blade rotation. The spar and tip cap piece is made from a NiAL material to further reduce the weight and the pulling force.

Inventors:: Kimmel, Keith D.; Plank, William L.

Issue Date:: Tue Jul 19 00:00:00 EDT 2016

Research Org.:: J & S DESIGN LLC, Jupiter, FL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1264422

Patent Number(s):: 9394795

Application Number:: 12/706,241

Assignee:: J & S DESIGN LLC (Jupiter, FL)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES

F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS

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F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F01D5/147 - {Construction, i.e. structural features, e.g. of weight-saving hollow blades
F01D5/3007 - {of axial insertion type}

F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
F05D2240/30 - Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
F05D2240/307 - related to the tip of a rotor blade
F05D2260/36 - by a form fit connection, e.g. by interlocking
F05D2300/13 - Refractory metals, i.e. Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W
F05D2300/173 - Aluminium alloys, e.g. AlCuMgPb

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DOE Contract Number:: FG02-07ER84668

Resource Type:: Patent

Resource Relation:: Patent File Date: 2010 Feb 16

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; 33 ADVANCED PROPULSION SYSTEMS

Citation Formats


                    Kimmel, Keith D., and Plank, William L. Multiple piece turbine rotor blade.  United States: N. p., 2016. 
        Web.

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                    Kimmel, Keith D., & Plank, William L. Multiple piece turbine rotor blade.  United States.

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                    Kimmel, Keith D., and Plank, William L. Tue .  
        "Multiple piece turbine rotor blade".  United States.  https://www.osti.gov/servlets/purl/1264422.

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@article{osti_1264422,

  title        = {Multiple piece turbine rotor blade},

  author       = {Kimmel, Keith D. and Plank, William L.},

  abstractNote = {A spar and shell turbine rotor blade with a spar and a tip cap formed as a single piece, the spar includes a bottom end with dovetail or fir tree slots that engage with slots on a top end of a root section, and a platform includes an opening on a top surface for insertion of the spar in which a shell made from an exotic high temperature resistant material is secured between the tip cap and the platform. The spar is tapered to form thinner walls at the tip end to further reduce the weight and therefore a pulling force due to blade rotation. The spar and tip cap piece is made from a NiAL material to further reduce the weight and the pulling force.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Jul 19 00:00:00 EDT 2016},

  month        = {Tue Jul 19 00:00:00 EDT 2016}

}

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Works referenced in this record:

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Multiple piece turbine blade
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Tip cap for turbine rotor blade
patent, August 2012

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