Turbine last stage flow path

US8998577B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8998577-B2
Application numberUS-201113288057-A
CountryUS
Kind codeB2
Filing dateNov 3, 2011
Priority dateNov 3, 2011
Publication dateApr 7, 2015
Grant dateApr 7, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

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The present application thus provides a gas turbine engine. The gas turbine engine may include a turbine and a diffuser positioned downstream of the turbine. The turbine may include a number of last stage buckets, a number of last stage nozzles, and a gauging ratio of the last stage nozzles of about 0.95 or more.

First claim

Opening claim text (preview).

We claim: 1. A gas turbine engine, comprising: a turbine, the turbine comprising: a plurality of last stage buckets; a plurality of last stage nozzles, wherein a gauging of the last stage nozzles increases from a hub side to a tip side of the last stage nozzles; and a radius ratio of 0.4 to 0.65; and a diffuser positioned downstream of the turbine. 2. The gas turbine engine of claim 1 , wherein the gauging of the last stage nozzles comprises a ratio…

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What does patent US8998577B2 cover?
The present application thus provides a gas turbine engine. The gas turbine engine may include a turbine and a diffuser positioned downstream of the turbine. The turbine may include a number of last stage buckets, a number of last stage nozzles, and a gauging ratio of the last stage nozzles of about 0.95 or more.
Who is the assignee on this patent?
Gustafson Ross James, Siden Gunnar Leif, Gen Electric
What technology area does this patent fall under?
Primary CPC classification F01D9/041. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Apr 07 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).