Turbine bucket platform shaping for gas temperature control and related method

US8967973B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8967973-B2
Application numberUS-201113282074-A
CountryUS
Kind codeB2
Filing dateOct 26, 2011
Priority dateOct 26, 2011
Publication dateMar 3, 2015
Grant dateMar 3, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A turbine bucket includes a radially inner mounting portion; a shank radially outward of the mounting portion; at least one radially outer airfoil having a leading edge and a trailing edge; a substantially planar platform radially between the shank and the at least one radially outer airfoil; at least one axially-extending angel wing seal flange on a leading end of the shank thus forming a circumferentially extending trench cavity along the leading end of the shank, radially between an underside of the platform leading edge and a radially outer side of the angel wing seal flange; and slash faces along opposite, circumferentially-spaced side edges of the platform. At least one of the slash faces is formed with a dog-leg shape, a leading end of the at least one of slash face terminating at a location circumferentially offset from the leading edge of the at least one radially outer airfoil.

First claim

Opening claim text (preview).

What is claimed is: 1. A turbine bucket comprising: a radially inner mounting portion; a shank radially outward of said mounting portion; at least one radially outer airfoil having a leading edge and a trailing edge; a substantially planar platform radially between said shank and said at least one radially outer airfoil; at least one axially-extending angel wing seal flange on a leading end of said shank thus forming a circumferentially extending trench cavity along said leading e…

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What does patent US8967973B2 cover?
A turbine bucket includes a radially inner mounting portion; a shank radially outward of the mounting portion; at least one radially outer airfoil having a leading edge and a trailing edge; a substantially planar platform radially between the shank and the at least one radially outer airfoil; at least one axially-extending angel wing seal flange on a leading end of the shank thus forming a circ…
Who is the assignee on this patent?
Ingram Clint Luigie, Gen Electric
What technology area does this patent fall under?
Primary CPC classification F01D5/143. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).