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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:
;
Issue Date:
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 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
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
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.
Kimmel, Keith D., & Plank, William L. Multiple piece turbine rotor blade. United States.
Kimmel, Keith D., and Plank, William L. Tue . "Multiple piece turbine rotor blade". United States. https://www.osti.gov/servlets/purl/1264422.
@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 = {2016},
month = {7}
}

Patent:

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