Premixed direct injection nozzle

Title: Premixed direct injection nozzle

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Abstract

An injection nozzle having a main body portion with an outer peripheral wall is disclosed. The nozzle includes a plurality of fuel/air mixing tubes disposed within the main body portion and a fuel flow passage fluidly connected to the plurality of fuel/air mixing tubes. Fuel and air are partially premixed inside the plurality of the tubes. A second body portion, having an outer peripheral wall extending between a first end and an opposite second end, is connected to the main body portion. The partially premixed fuel and air mixture from the first body portion gets further mixed inside the second body portion. The second body portion converges from the first end toward said second end. The second body portion also includes cooling passages that extend along all the walls around the second body to provide thermal damage resistance for occasional flame flash back into the second body.

Inventors:

Zuo, Baifang ^[1]; Johnson, Thomas Edward ^[2]; Lacy, Benjamin Paul ^[2]; Ziminsky, Willy Steve ^[1]

Simpsonville, SC
Greer, SC

Issue Date:: 2011-02-15

Research Org.:: General Electric Company (Schenectady, NY)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1015309

Patent Number(s):: 7886991

Application Number:: US Patent Application

Assignee:: General Electric Company (Schenectady, NY)

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

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F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23R - GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
F23R3/283 - {Attaching or cooling of fuel injecting means including supports for fuel injectors, stems, or lances}
F23R3/286 - {having fuel-air premixing devices

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DOE Contract Number:: FC26-05NT42643

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Zuo, Baifang, Johnson, Thomas Edward, Lacy, Benjamin Paul, and Ziminsky, Willy Steve. Premixed direct injection nozzle.  United States: N. p., 2011. 
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                    Zuo, Baifang, Johnson, Thomas Edward, Lacy, Benjamin Paul, & Ziminsky, Willy Steve. Premixed direct injection nozzle.  United States.

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                    Zuo, Baifang, Johnson, Thomas Edward, Lacy, Benjamin Paul, and Ziminsky, Willy Steve. Tue .  
        "Premixed direct injection nozzle".  United States.  https://www.osti.gov/servlets/purl/1015309.

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@article{osti_1015309,

  title        = {Premixed direct injection nozzle},

  author       = {Zuo, Baifang and Johnson, Thomas Edward and Lacy, Benjamin Paul and Ziminsky, Willy Steve},

  abstractNote = {An injection nozzle having a main body portion with an outer peripheral wall is disclosed. The nozzle includes a plurality of fuel/air mixing tubes disposed within the main body portion and a fuel flow passage fluidly connected to the plurality of fuel/air mixing tubes. Fuel and air are partially premixed inside the plurality of the tubes. A second body portion, having an outer peripheral wall extending between a first end and an opposite second end, is connected to the main body portion. The partially premixed fuel and air mixture from the first body portion gets further mixed inside the second body portion. The second body portion converges from the first end toward said second end. The second body portion also includes cooling passages that extend along all the walls around the second body to provide thermal damage resistance for occasional flame flash back into the second body.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2011},

  month        = {2}

}

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