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Title: Fuel injector including a lobed mixer and vanes for injecting alternate fuels in a gas turbine

Abstract

A fuel injector for injecting alternate fuels having a different energy density in a gas turbine is provided. A first fuel supply channel (18) may be fluidly coupled to a radial passage (22) in a plurality of vanes (20) that branches into passages (24) (e.g., axial passages) to inject a first fuel without jet in cross-flow injection. This may be effective to reduce flashback in fuels having a relatively high flame speed. A mixer (30) with lobes (32) for injection of a second fuel may be arranged at the downstream end of a fuel delivery tube (12). A fuel-routing structure (38) may be configured to route the second fuel within a respective lobe so that fuel injection of the second fuel takes place radially outwardly relative to a central region of the mixer. This may be conducive to an improved (e.g., a relatively more uniform) mixing of air and fuel.

Inventors:
; ;
Issue Date:
Research Org.:
Siemens Energy, Inc., Orlando, FL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1735005
Patent Number(s):
10704786
Application Number:
15/540,405
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: 01/29/2015
Country of Publication:
United States
Language:
English

Citation Formats

Laster, Walter Ray, Fox, Timothy A., and Bartley, Robert H. Fuel injector including a lobed mixer and vanes for injecting alternate fuels in a gas turbine. United States: N. p., 2020. Web.
Laster, Walter Ray, Fox, Timothy A., & Bartley, Robert H. Fuel injector including a lobed mixer and vanes for injecting alternate fuels in a gas turbine. United States.
Laster, Walter Ray, Fox, Timothy A., and Bartley, Robert H. Tue . "Fuel injector including a lobed mixer and vanes for injecting alternate fuels in a gas turbine". United States. https://www.osti.gov/servlets/purl/1735005.
@article{osti_1735005,
title = {Fuel injector including a lobed mixer and vanes for injecting alternate fuels in a gas turbine},
author = {Laster, Walter Ray and Fox, Timothy A. and Bartley, Robert H.},
abstractNote = {A fuel injector for injecting alternate fuels having a different energy density in a gas turbine is provided. A first fuel supply channel (18) may be fluidly coupled to a radial passage (22) in a plurality of vanes (20) that branches into passages (24) (e.g., axial passages) to inject a first fuel without jet in cross-flow injection. This may be effective to reduce flashback in fuels having a relatively high flame speed. A mixer (30) with lobes (32) for injection of a second fuel may be arranged at the downstream end of a fuel delivery tube (12). A fuel-routing structure (38) may be configured to route the second fuel within a respective lobe so that fuel injection of the second fuel takes place radially outwardly relative to a central region of the mixer. This may be conducive to an improved (e.g., a relatively more uniform) mixing of air and fuel.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}

Works referenced in this record:

Air fuel mixer for gas turbine combustor
patent, October 1993


Turbomachine nozzle with noise reduction
patent, August 2005


Duplex mixer exhaust nozzle
patent, September 2004


Fuel injector and swirler assembly with lobed mixer
patent, August 2013


Combined guide vane and mixer for a gas turbine engine
patent, September 1977


Flex-fuel injector for gas turbines
patent, March 2014