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Title: Coaxial fuel and air premixer for a gas turbine combustor

Abstract

An air/fuel premixer comprising a peripheral wall defining a mixing chamber, a nozzle disposed at least partially within the peripheral wall comprising an outer annular wall spaced from the peripheral wall so as to define an outer air passage between the peripheral wall and the outer annular wall, an inner annular wall disposed at least partially within and spaced from the outer annular wall, so as to define an inner air passage, and at least one fuel gas annulus between the outer annular wall and the inner annular wall, the at least one fuel gas annulus defining at least one fuel gas passage, at least one air inlet for introducing air through the inner air passage and the outer air passage to the mixing chamber, and at least one fuel inlet for injecting fuel through the fuel gas passage to the mixing chamber to form an air/fuel mixture.

Inventors:
; ;
Issue Date:
Research Org.:
General Electric Co., Schenectady, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1084048
Patent Number(s):
8443607
Application Number:
12/389,994
Assignee:
General Electric Company (Schenectady, NY)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23C - METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  {A CARRIER GAS OR} AIR 
F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23D - BURNERS
DOE Contract Number:  
FC26-05NT42643
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS

Citation Formats

York, William D, Ziminsky, Willy S, and Lacy, Benjamin P. Coaxial fuel and air premixer for a gas turbine combustor. United States: N. p., 2013. Web.
York, William D, Ziminsky, Willy S, & Lacy, Benjamin P. Coaxial fuel and air premixer for a gas turbine combustor. United States.
York, William D, Ziminsky, Willy S, and Lacy, Benjamin P. Tue . "Coaxial fuel and air premixer for a gas turbine combustor". United States. https://www.osti.gov/servlets/purl/1084048.
@article{osti_1084048,
title = {Coaxial fuel and air premixer for a gas turbine combustor},
author = {York, William D and Ziminsky, Willy S and Lacy, Benjamin P},
abstractNote = {An air/fuel premixer comprising a peripheral wall defining a mixing chamber, a nozzle disposed at least partially within the peripheral wall comprising an outer annular wall spaced from the peripheral wall so as to define an outer air passage between the peripheral wall and the outer annular wall, an inner annular wall disposed at least partially within and spaced from the outer annular wall, so as to define an inner air passage, and at least one fuel gas annulus between the outer annular wall and the inner annular wall, the at least one fuel gas annulus defining at least one fuel gas passage, at least one air inlet for introducing air through the inner air passage and the outer air passage to the mixing chamber, and at least one fuel inlet for injecting fuel through the fuel gas passage to the mixing chamber to form an air/fuel mixture.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 21 00:00:00 EDT 2013},
month = {Tue May 21 00:00:00 EDT 2013}
}

Works referenced in this record:

Vane segment support and alignment device
patent, July 1999


Blade Ring Support
patent, March 1970


Air-atomizing fuel nozzle
patent, September 1976


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


Method and apparatus for vane segment support and alignment in combustion turbines
patent, January 1990


Swozzle based burner tube premixer including inlet air conditioner for low emissions combustion
patent, August 2002


Removable inner turbine shell with bucket tip clearance control
patent, July 2000


Internally vaporizing low emission combustor
patent, March 1978


Burner with high flame stability
patent, November 2003


Low no.sub.x fuel nozzle assembly
patent, September 1997