Dual outlet nozzle for a secondary fuel stage of a combustor of a gas turbine engine

Laster, Walter R.; Martin, Scott M.; Portillo Bilbao, Juan Enrique; Hardes, Jacob; Fox, Timothy A.

Title: Dual outlet nozzle for a secondary fuel stage of a combustor of a gas turbine engine

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Abstract

A secondary fuel stage (14) of a combustor of a gas turbine engine. The combustor has a main combustion zone (43) upstream of the secondary fuel stage to ignite working gas The secondary fuel stage includes a nozzle (18) with dual outlets (20, 22) oriented with a circumferential component to inject an air-fuel mixture (24) into the combustor. The nozzle is effective to entrain the air-fuel mixture with the working gas (44) such that a peak temperature (46) of the working gas at a location downstream of the secondary fuel stage is less than a peak temperature (50) of working gas if the air-fuel mixture were injected into the combustor with a single outlet nozzle (118).

Inventors:: Laster, Walter R.; Martin, Scott M.; Portillo Bilbao, Juan Enrique; Hardes, Jacob; Fox, Timothy A.

Issue Date:: 2018-11-27

Research Org.:: Siemens Energy, Inc., Orlando, FL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1495322

Patent Number(s):: 10139111

Application Number:: 14/228,883

Assignee:: SIEMENS ENERGY, INC. (Orlando, FL)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02C - GAS-TURBINE PLANTS

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23R - GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS

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F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02C - GAS-TURBINE PLANTS
F02C7/222 - {Fuel flow conduits, e.g. manifolds}

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23R - GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
F23R3/346 - {for staged combustion}
F23R3/286 - {having fuel-air premixing devices
F23R3/06 - Arrangement of apertures along the flame tube
F23R3/16 - with devices inside the flame tube or the combustion chamber to influence the air or gas flow
F23R3/34 - Feeding into different combustion zones

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DOE Contract Number:: FC26-05NT42644

Resource Type:: Patent

Resource Relation:: Patent File Date: 2014 Mar 28

Country of Publication:: United States

Language:: English

Subject:: 33 ADVANCED PROPULSION SYSTEMS

Citation Formats


                    Laster, Walter R., Martin, Scott M., Portillo Bilbao, Juan Enrique, Hardes, Jacob, and Fox, Timothy A. Dual outlet nozzle for a secondary fuel stage of a combustor of a gas turbine engine.  United States: N. p., 2018. 
        Web.

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                    Laster, Walter R., Martin, Scott M., Portillo Bilbao, Juan Enrique, Hardes, Jacob, & Fox, Timothy A. Dual outlet nozzle for a secondary fuel stage of a combustor of a gas turbine engine.  United States.

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                    Laster, Walter R., Martin, Scott M., Portillo Bilbao, Juan Enrique, Hardes, Jacob, and Fox, Timothy A. Tue .  
        "Dual outlet nozzle for a secondary fuel stage of a combustor of a gas turbine engine".  United States.  https://www.osti.gov/servlets/purl/1495322.

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@article{osti_1495322,

  title        = {Dual outlet nozzle for a secondary fuel stage of a combustor of a gas turbine engine},

  author       = {Laster, Walter R. and Martin, Scott M. and Portillo Bilbao, Juan Enrique and Hardes, Jacob and Fox, Timothy A.},

  abstractNote = {A secondary fuel stage (14) of a combustor of a gas turbine engine. The combustor has a main combustion zone (43) upstream of the secondary fuel stage to ignite working gas The secondary fuel stage includes a nozzle (18) with dual outlets (20, 22) oriented with a circumferential component to inject an air-fuel mixture (24) into the combustor. The nozzle is effective to entrain the air-fuel mixture with the working gas (44) such that a peak temperature (46) of the working gas at a location downstream of the secondary fuel stage is less than a peak temperature (50) of working gas if the air-fuel mixture were injected into the combustor with a single outlet nozzle (118).},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2018},

  month        = {11}

}

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