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Title: System for supporting a bundled tube fuel injector within a combustor

Abstract

A combustor includes an end cover having an outer side and an inner side, an outer barrel having a forward end that is adjacent to the inner side of the end cover and an aft end that is axially spaced from the forward end. An inner barrel is at least partially disposed concentrically within the outer barrel and is fixedly connected to the outer barrel. A fluid conduit extends downstream from the end cover. A first bundled tube fuel injector segment is disposed concentrically within the inner barrel. The bundled tube fuel injector segment includes a fuel plenum that is in fluid communication with the fluid conduit and a plurality of parallel tubes that extend axially through the fuel plenum. The bundled tube fuel injector segment is fixedly connected to the inner barrel.

Inventors:
; ; ;
Publication Date:
Research Org.:
GENERAL ELECTRIC COMPANY, Schenectady, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1258016
Patent Number(s):
9,371,997
Application Number:
13/932,301
Assignee:
GENERAL ELECTRIC COMPANY (Schenectady, NY) NETL
DOE Contract Number:
FC26-05NT42643
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Jul 01
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

LeBegue, Jeffrey Scott, Melton, Patrick Benedict, Westmoreland, III, James Harold, and Flanagan, James Scott. System for supporting a bundled tube fuel injector within a combustor. United States: N. p., 2016. Web.
LeBegue, Jeffrey Scott, Melton, Patrick Benedict, Westmoreland, III, James Harold, & Flanagan, James Scott. System for supporting a bundled tube fuel injector within a combustor. United States.
LeBegue, Jeffrey Scott, Melton, Patrick Benedict, Westmoreland, III, James Harold, and Flanagan, James Scott. 2016. "System for supporting a bundled tube fuel injector within a combustor". United States. doi:. https://www.osti.gov/servlets/purl/1258016.
@article{osti_1258016,
title = {System for supporting a bundled tube fuel injector within a combustor},
author = {LeBegue, Jeffrey Scott and Melton, Patrick Benedict and Westmoreland, III, James Harold and Flanagan, James Scott},
abstractNote = {A combustor includes an end cover having an outer side and an inner side, an outer barrel having a forward end that is adjacent to the inner side of the end cover and an aft end that is axially spaced from the forward end. An inner barrel is at least partially disposed concentrically within the outer barrel and is fixedly connected to the outer barrel. A fluid conduit extends downstream from the end cover. A first bundled tube fuel injector segment is disposed concentrically within the inner barrel. The bundled tube fuel injector segment includes a fuel plenum that is in fluid communication with the fluid conduit and a plurality of parallel tubes that extend axially through the fuel plenum. The bundled tube fuel injector segment is fixedly connected to the inner barrel.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 6
}

Patent:

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  • A system for supporting bundled tube segments within a combustor includes an annular sleeve that extends circumferentially and axially within the combustor, a support lug that extends radially inward from the annular sleeve and an annular support frame that is disposed within the annular sleeve. The annular support frame includes an inner ring portion, an outer ring portion and a plurality of spokes that extend radially between the inner and outer ring portions. The inner ring portion, the outer ring portion and the plurality of spokes define an annular array of openings for receiving a respective bundled tube segment. Themore » inner ring portion is connected to each bundled tube segment and the outer ring portion is coupled to the support lug.« less
  • A cap assembly for a bundled tube fuel injector includes an impingement plate and an aft plate that is disposed downstream from the impingement plate. The aft plate includes a forward side that is axially separated from an aft side. A tube passage extends through the impingement plate and the aft plate. A tube sleeve extends through the impingement plate within the tube passage towards the aft plate. The tube sleeve includes a flange at a forward end and an aft end that is axially separated from the forward end. A retention plate is positioned upstream from the impingement plate.more » A spring is disposed between the retention plate and the flange. The spring provides a force so as to maintain contact between at least a portion of the aft end of the tube sleeve and the forward side of the aft plate.« less
  • This patent describes a combustor for a gas turbine engine. It comprises: a preburner; means for feeding gaseous fuel and air to the preburner; a fuel injector downstream of the preburner. The fuel injector including parallel venturi tubes and means for forcing substantially all of a gas flow from the preburner to flow through the venturi tubes; each of the venturi tubes including a converging inlet section, an throat section and a diverging diffuser section; each of the venturi tubes provided with at least one orifice in the throat section; means for feeding a gaseous fuel to each of themore » venturi tubes through a respective one of the orifices; and a catalyst bed.« less
  • An injector for a gas turbine combustor including a catalyst coated surface forming a passage for feed gas flow and a channel for oxidant gas flow establishing an axial gas flow through a flow conditioner disposed at least partially within an inner wall of the injector. The flow conditioner includes a length with an interior passage opening into upstream and downstream ends for passage of the axial gas flow. An interior diameter of the interior passage smoothly reduces and then increases from upstream to downstream ends.
  • An air blast fuel supply system for a gas turbine engine comprises a floating swirler separated from the fuel injector and means for radially supporting both the swirler and fuel injector for free radial movement with respect to a combustor dome; a fuel atomization lip on the floating swirler is located in spaced overlying relationship to a tangential fuel director to form an annular fuel film at the outlet of the fuel injector and an outer annular air flow directing lip on the floating swirler directs inlet air flow against the fuel film as it leaves the atomization lip. Themore » fuel injector includes a nozzle tube that slips to permit free axial movement of said fuel injector with resepct to the dome and wherein the tangential fuel director maintains the annular fuel film throughout axially shifted positions of said nozzle tube. This allows the fuel nozzle to be inserted through a small opening in the engine case while maintaining the integrated relationship with the swirler attached to the combustor. The fuel atomization lip has an outlet edge thereon and an outer annular air flow directing lip has outlet edge thereon maintained at a constantly fixed dimensional relationship therebetween throughout axial shifted positions of the nozzle tube whereby the fuel break -up point for atomization of fuel and air remains the same with respect to the combustor during engine operation.« less