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Title: Apparatus and method for a gas turbine nozzle

Abstract

A nozzle includes an inlet, an outlet, and an axial centerline. A shroud surrounding the axial centerline extends from the inlet to the outlet and defines a circumference. The circumference proximate the inlet is greater than the circumference at a first point downstream of the inlet, and the circumference at the first point downstream of the inlet is less than the circumference at a second point downstream of the first point. A method for supplying a fuel through a nozzle directs a first airflow along a first path and a second airflow along a second path separate from the first path. The method further includes injecting the fuel into at least one of the first path or the second path and accelerating at least one of the first airflow or the second airflow.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
General Electric Co., Schenectady, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1083236
Patent Number(s):
8365532
Application Number:
12/570,678
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; 42 ENGINEERING

Citation Formats

Zuo, Baifang, Ziminsky, Willy Steve, Johnson, Thomas Edward, Intile, John Charles, and Lacy, Benjamin Paul. Apparatus and method for a gas turbine nozzle. United States: N. p., 2013. Web.
Zuo, Baifang, Ziminsky, Willy Steve, Johnson, Thomas Edward, Intile, John Charles, & Lacy, Benjamin Paul. Apparatus and method for a gas turbine nozzle. United States.
Zuo, Baifang, Ziminsky, Willy Steve, Johnson, Thomas Edward, Intile, John Charles, and Lacy, Benjamin Paul. Tue . "Apparatus and method for a gas turbine nozzle". United States. https://www.osti.gov/servlets/purl/1083236.
@article{osti_1083236,
title = {Apparatus and method for a gas turbine nozzle},
author = {Zuo, Baifang and Ziminsky, Willy Steve and Johnson, Thomas Edward and Intile, John Charles and Lacy, Benjamin Paul},
abstractNote = {A nozzle includes an inlet, an outlet, and an axial centerline. A shroud surrounding the axial centerline extends from the inlet to the outlet and defines a circumference. The circumference proximate the inlet is greater than the circumference at a first point downstream of the inlet, and the circumference at the first point downstream of the inlet is less than the circumference at a second point downstream of the first point. A method for supplying a fuel through a nozzle directs a first airflow along a first path and a second airflow along a second path separate from the first path. The method further includes injecting the fuel into at least one of the first path or the second path and accelerating at least one of the first airflow or the second airflow.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 05 00:00:00 EST 2013},
month = {Tue Feb 05 00:00:00 EST 2013}
}

Works referenced in this record:

Fuel delivery system
patent, June 1991


Air fuel mixer for gas turbine combustor
patent, October 1993


Combustor mixer having plasma generating nozzle
patent, September 2002


Method and apparatus for mixing fuel to decrease combustor emissions
patent, November 2002


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


Multi-sided diffuser for a venturi in a fuel injector for a gas turbine
patent, February 2006


Pilot fuel injector for mixer assembly of a high pressure gas turbine engine
patent, February 2011