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Title: Annular fuel and air co-flow premixer

Abstract

Disclosed is a premixer for a combustor including an annular outer shell and an annular inner shell. The inner shell defines an inner flow channel inside of the inner shell and is located to define an outer flow channel between the outer shell and the inner shell. A fuel discharge annulus is located between the outer flow channel and the inner flow channel and is configured to inject a fuel flow into a mixing area in a direction substantially parallel to an outer airflow through the outer flow channel and an inner flow through the inner flow channel. Further disclosed are a combustor including a plurality of premixers and a method of premixing air and fuel in a combustor.

Inventors:
; ;
Publication Date:
Research Org.:
General Electric Co., Schenectady, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176505
Patent Number(s):
8,555,646
Application Number:
12/360,449
Assignee:
General Electric Company (Schenectady, NY)
DOE Contract Number:  
FC26-05NT42643
Resource Type:
Patent
Resource Relation:
Patent File Date: 2009 Jan 27
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Stevenson, Christian Xavier, Melton, Patrick Benedict, and York, William David. Annular fuel and air co-flow premixer. United States: N. p., 2013. Web.
Stevenson, Christian Xavier, Melton, Patrick Benedict, & York, William David. Annular fuel and air co-flow premixer. United States.
Stevenson, Christian Xavier, Melton, Patrick Benedict, and York, William David. 2013. "Annular fuel and air co-flow premixer". United States. https://www.osti.gov/servlets/purl/1176505.
@article{osti_1176505,
title = {Annular fuel and air co-flow premixer},
author = {Stevenson, Christian Xavier and Melton, Patrick Benedict and York, William David},
abstractNote = {Disclosed is a premixer for a combustor including an annular outer shell and an annular inner shell. The inner shell defines an inner flow channel inside of the inner shell and is located to define an outer flow channel between the outer shell and the inner shell. A fuel discharge annulus is located between the outer flow channel and the inner flow channel and is configured to inject a fuel flow into a mixing area in a direction substantially parallel to an outer airflow through the outer flow channel and an inner flow through the inner flow channel. Further disclosed are a combustor including a plurality of premixers and a method of premixing air and fuel in a combustor.},
doi = {},
url = {https://www.osti.gov/biblio/1176505}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 15 00:00:00 EDT 2013},
month = {Tue Oct 15 00:00:00 EDT 2013}
}

Works referenced in this record:

Gas only nozzle
patent, October 2002


Fully premixed secondary fuel nozzle with improved stability
patent, February 2004


Burner tube and method for mixing air and gas in a gas turbine engine
patent, February 2006


Air-atomizing fuel nozzle
patent, September 1976


Mixer having intervane fuel injection
patent, October 2001


Dual fuel mixer for gas turbine combustor
patent, October 1994


Dual fuel mixer for gas turbine combustor
patent, July 1998