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Title: Flex-fuel injector for gas turbines

Abstract

A fuel injector (36) for alternate fuels (26A, 26B) with different energy densities. Vanes (47B) extend radially from a fuel delivery tube structure (20B) with first and second fuel supply channels (19A, 19B). Each vane has first and second radial passages (21A, 21B) communicating with the respective fuel supply channels, and first and second sets of apertures (23A, 23B). The first fuel supply channel, first radial passage, and first apertures form a first fuel delivery pathway providing a first fuel flow rate at a given fuel delivery pathway backpressure that is essentially common to both sets of fuel delivery pathway apertures. The second fuel supply channel, second radial passage, and second apertures form a second fuel delivery pathway providing a second fuel flow rate that may be at least 1 about twice the first fuel flow rate at the given fuel delivery pathway backpressure.

Inventors:
; ; ;
Issue Date:
Research Org.:
Siemens Energy, Inc., Orlando, FL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531901
Patent Number(s):
8661779
Application Number:
12/356,131
Assignee:
Siemens Energy, Inc. (Orlando, FL)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23R - GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23D - BURNERS
DOE Contract Number:  
FC26-05NT42644
Resource Type:
Patent
Resource Relation:
Patent File Date: 2009-01-20
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS

Citation Formats

Laster, Walter R., Cai, Weidong, Fox, Timothy A., and Landry, Kyle L. Flex-fuel injector for gas turbines. United States: N. p., 2014. Web.
Laster, Walter R., Cai, Weidong, Fox, Timothy A., & Landry, Kyle L. Flex-fuel injector for gas turbines. United States.
Laster, Walter R., Cai, Weidong, Fox, Timothy A., and Landry, Kyle L. Tue . "Flex-fuel injector for gas turbines". United States. https://www.osti.gov/servlets/purl/1531901.
@article{osti_1531901,
title = {Flex-fuel injector for gas turbines},
author = {Laster, Walter R. and Cai, Weidong and Fox, Timothy A. and Landry, Kyle L.},
abstractNote = {A fuel injector (36) for alternate fuels (26A, 26B) with different energy densities. Vanes (47B) extend radially from a fuel delivery tube structure (20B) with first and second fuel supply channels (19A, 19B). Each vane has first and second radial passages (21A, 21B) communicating with the respective fuel supply channels, and first and second sets of apertures (23A, 23B). The first fuel supply channel, first radial passage, and first apertures form a first fuel delivery pathway providing a first fuel flow rate at a given fuel delivery pathway backpressure that is essentially common to both sets of fuel delivery pathway apertures. The second fuel supply channel, second radial passage, and second apertures form a second fuel delivery pathway providing a second fuel flow rate that may be at least 1 about twice the first fuel flow rate at the given fuel delivery pathway backpressure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {3}
}

Works referenced in this record:

Combustor burner vanelets
patent, February 2012


Dual fuel mixer for gas turbine combustor
patent, October 1994


Gas turbine engine fuel injectors
patent, August 1982


Dual fuel mixer for gas turbine combustor
patent, April 1996


Fully premixed secondary fuel nozzle with improved stability and dual fuel capability
patent, April 2004


Dual fuel gas turbine combustor
patent, August 1997


Combustor nozzle for a fuel-flexible combustion system
patent, March 2011


Premixed pilot burner for a combustion turbine engine
patent, February 2005


Wide range gaseous fuel combustion system for gas turbine engines
patent, August 1988


Turbine engine fuel injector
patent, August 2005


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


Fully premixed secondary fuel nozzle
patent, January 2004


    Works referencing / citing this record:

    Swirler assembly with compressor discharge injection to vane surface
    patent, March 2015


    Fuel injector including tandem vanes for injecting alternate fuels in a gas turbine
    patent, September 2018