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Title: Staged fuel and air injection in combustion systems of gas turbines

Abstract

A gas turbine that includes a working fluid flowpath extending aftward from a forward injector in a combustor. The combustor may include an inner radial wall, an outer radial wall, and, therebetween, a flow annulus. A staged injector may intersect the flow annulus so to attain an injection point within the working fluid flowpath by which aftward and forward annulus sections are defined. Air directing structure may include an aftward intake section that corresponds to the aftward annulus section and a forward intake section that corresponds to the forward annulus section. The air directing structure may be configured to: direct air entering through the aftward intake section through the aftward annulus section in a forward direction to the staged injector; and direct air entering through the forward intake section through the forward annulus section in a forward direction to the forward injector.

Inventors:
;
Issue Date:
Research Org.:
General Electric Co., Schenectady, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1435769
Patent Number(s):
9945294
Application Number:
14/978,006
Assignee:
General Electric Company (Schenectady, NY)
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
DOE Contract Number:  
FC26-05NT42643
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Dec 22
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Hughes, Michael John, and Berry, Jonathan Dwight. Staged fuel and air injection in combustion systems of gas turbines. United States: N. p., 2018. Web.
Hughes, Michael John, & Berry, Jonathan Dwight. Staged fuel and air injection in combustion systems of gas turbines. United States.
Hughes, Michael John, and Berry, Jonathan Dwight. Tue . "Staged fuel and air injection in combustion systems of gas turbines". United States. https://www.osti.gov/servlets/purl/1435769.
@article{osti_1435769,
title = {Staged fuel and air injection in combustion systems of gas turbines},
author = {Hughes, Michael John and Berry, Jonathan Dwight},
abstractNote = {A gas turbine that includes a working fluid flowpath extending aftward from a forward injector in a combustor. The combustor may include an inner radial wall, an outer radial wall, and, therebetween, a flow annulus. A staged injector may intersect the flow annulus so to attain an injection point within the working fluid flowpath by which aftward and forward annulus sections are defined. Air directing structure may include an aftward intake section that corresponds to the aftward annulus section and a forward intake section that corresponds to the forward annulus section. The air directing structure may be configured to: direct air entering through the aftward intake section through the aftward annulus section in a forward direction to the staged injector; and direct air entering through the forward intake section through the forward annulus section in a forward direction to the forward injector.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {4}
}

Works referencing / citing this record:

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patent-application, May 2014


Systems and Apparatus Relating to Downstream Fuel and Air Injection in Gas Turbines
patent-application, September 2014


Methods Relating to Downstream Fuel and Air Injection in Gas Turbines
patent-application, September 2014


Late Lean Injection with Expanded Fuel Flexibility
patent-application, July 2010


Hot Gas Path Duct for a Combustion of a Gas Turbine
patent-application, September 2014


Angel wing abradable seal and sealing method
patent, March 2009


Assemblies and apparatus related to integrating late lean injection into combustion turbine engines
patent, December 2014


Methods relating to integrating late lean injection into combustion turbine engines
patent, April 2013


Low-emission, staged-combustion power generation
patent, August 2004


Late lean injection with adjustable air splits
patent, February 2012


Staged Fuel and Air Injection in Combustion Systems of Gas Turbines
patent-application, July 2017


Staged Fuel and Air Injection in Combustion Systems of Gas Turbines
patent-application, June 2017


Small gas turbine engine with multiple burn zones
patent-application, October 2007


Staged Fuel and Air Injectors in Combustion Systems of Gas Turbines
patent-application, September 2017


Methods and Systems to Facilitate Reducing NOx Emissions in Combustion Systems
patent-application, October 2008


Selective gas-phase nox reduction in gas turbines
patent, April 1993


Staged Fuel and Air Injection in Combustion Systems of Gas Turbines
patent-application, June 2017


Combustor Wall Channel Cooling System
patent-application, May 2017


Staged Fuel and Air Injection in Combustion Systems of Gas Turbines
patent-application, June 2017


Secondary fuel injection from stage one nozzle
patent, October 2009


Gas Turbine Combustor
patent-application, July 2014


Late Lean Injection Control Strategy
patent-application, July 2010


System for Controlling a Flow Rate of a Compressed Working Fluid to a Combustor Fuel Injector
patent-application, September 2014


Burner unit and method for operation thereof
patent, April 2007


Reverse-flow gas turbine combustion system
patent, June 2011