Multiple piece turbine rotor blade

Kimmel, Keith D.; Plank, William L.

Title: Multiple piece turbine rotor blade

Patent · Tue Jul 19 00:00:00 EDT 2016

OSTI ID:1264422

Kimmel, Keith D.; Plank, William L.

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.

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

Sponsoring Organization:: USDOE

DOE Contract Number:: FG02-07ER84668

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

Patent Number(s):: 9,394,795

Application Number:: 12/706,241

OSTI ID:: 1264422

Resource Relation:: Patent File Date: 2010 Feb 16

Country of Publication:: United States

Language:: English

References (17)

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Multiple piece turbine blade Kimmel, Keith D. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8186953 US Patent Document 8,186,953	patent	May 2012
Tip cap for turbine rotor blade Diggs, William B.; Kimmel, Keith D. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8251658 US Patent Document 8,251,658	patent	August 2012
Multiple piece turbine rotor blade Kimmel, Keith D.; Wilson, Jr., Jack W.; Jones, Russell B. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8511999 US Patent Document 8,511,999	patent	August 2013
Tip cap for a turbine rotor blade Kimmel, Keith D. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8678764 US Patent Document 8,678,764	patent	March 2014
Process For Forming A Shell Of A Turbine Airfoil Wilson, Jr., Jack W.; Brown, Wesley D. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20090193657 US Patent Application 12/355353; 20090193657 A1	patent-application	August 2009

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