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Title: Internal baffling for fuel injector

Abstract

A fuel injector includes a fuel delivery tube; a plurality of pre-mixing tubes, each pre-mixing tube comprising at least one fuel injection hole; an upstream tube support plate that supports upstream ends of the plurality of pre-mixing tubes; a downstream tube support plate that supports downstream ends of the plurality of pre-mixing tubes; an outer wall connecting the upstream tube support plate and the downstream tube support plate and defining a plenum therewith; and a baffle provided in the plenum. The baffle includes a radial portion. A fuel delivered in the upstream direction by the fuel delivery tube is directed radially outwardly in the plenum between the radial portion of the baffle and the downstream tube support plate, then in the downstream direction around an outer edge portion of the radial portion, and then radially inwardly between the radial portion and the upstream tube support plate.

Inventors:
; ;
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1150019
Patent Number(s):
8794545
Application Number:
12/567,022
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
Resource Relation:
Patent File Date: 2009 Sep 25
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Johnson, Thomas Edward, Lacy, Benjamin, and Stevenson, Christian. Internal baffling for fuel injector. United States: N. p., 2014. Web.
Johnson, Thomas Edward, Lacy, Benjamin, & Stevenson, Christian. Internal baffling for fuel injector. United States.
Johnson, Thomas Edward, Lacy, Benjamin, and Stevenson, Christian. Tue . "Internal baffling for fuel injector". United States. https://www.osti.gov/servlets/purl/1150019.
@article{osti_1150019,
title = {Internal baffling for fuel injector},
author = {Johnson, Thomas Edward and Lacy, Benjamin and Stevenson, Christian},
abstractNote = {A fuel injector includes a fuel delivery tube; a plurality of pre-mixing tubes, each pre-mixing tube comprising at least one fuel injection hole; an upstream tube support plate that supports upstream ends of the plurality of pre-mixing tubes; a downstream tube support plate that supports downstream ends of the plurality of pre-mixing tubes; an outer wall connecting the upstream tube support plate and the downstream tube support plate and defining a plenum therewith; and a baffle provided in the plenum. The baffle includes a radial portion. A fuel delivered in the upstream direction by the fuel delivery tube is directed radially outwardly in the plenum between the radial portion of the baffle and the downstream tube support plate, then in the downstream direction around an outer edge portion of the radial portion, and then radially inwardly between the radial portion and the upstream tube support plate.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {8}
}

Works referenced in this record:

Premix combustor
patent, July 1978


Spray nozzle design
patent, December 1992


Low NOx combustion
patent, November 1993


Injection system with concentric slits and the associated injection elements
patent, February 1997


Burner for partial oxidation of a hydrocarbon-containing fuel
patent, May 1999


Pre-mixing apparatus for a turbine engine
patent, April 2012


Premixing direct injector
patent, April 2012


Monolithic fuel injector and related manufacturing method
patent, May 2012


Ablative baffle for a liquid rocket engine thrust chamber
patent-application, May 2005


Turbomachine Injection Nozzle Including a Coolant Delivery System
patent-application, February 2010


Bundled Multi-Tube Nozzle For A Turbomachine
patent-application, July 2010


Premixing Direct Injector
patent-application, October 2010


    Works referencing / citing this record:

    Fuel nozzle for use in a turbine engine and method of assembly
    patent, June 2017