Apparatus for mixing fuel in a gas turbine nozzle

Title: Apparatus for mixing fuel in a gas turbine nozzle

A fuel nozzle in a combustion turbine engine that includes: a fuel plenum defined between an circumferentially extending shroud and axially by a forward tube-sheet and an aft tube-sheet; and a mixing-tube that extends across the fuel plenum that defines a passageway connecting an inlet formed through the forward tube-sheet and an outlet formed through the aft tube-sheet, the mixing-tube comprising one or more fuel ports that fluidly communicate with the fuel plenum. The mixing-tube may include grooves on an outer surface, and be attached to the forward tube-sheet by a connection having a fail-safe leakage path.

Inventors:: Barker, Carl Robert

Issue Date:: 2016-11-22

OSTI Identifier:: 1333224

Assignee:: General Electric Company (Schenectady, NY NETL

Patent Number(s):: 9,500,370

Application Number:: 14/136,353

Contract Number:: FC26-05NT42643

Resource Relation:: Patent File Date: 2013 Dec 20

Research Org:: General Electric Company, Schenectady, NY (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; 33 ADVANCED PROPULSION SYSTEMS

Full Text
View Full Text

Other works cited in this record:

Multi-venturi tube fuel injector for gas turbine combustors
patent, January 2006

Dinu, Constantin; Hu, Iris; Storey, James
US Patent Document 6,983,600
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN/6983600

Similar records in DOepatents and OSTI.GOV collections:

Apparatus and method for mixing fuel in a gas turbine nozzle

Patent Johnson, Thomas Edward ; Ziminsky, Willy Steve ; Berry, Jonathan Dwight

A nozzle includes a fuel plenum and an air plenum downstream of the fuel plenum. A primary fuel channel includes an inlet in fluid communication with the fuel plenum and a primary air port in fluid communication with the air plenum. Secondary fuel channels radially outward of the primary fuel channel include a secondary fuel port in fluid communication with the fuel plenum. A shroud circumferentially surrounds the secondary fuel channels. A method for mixing fuel and air in a nozzle prior to combustion includes flowing fuel to a fuel plenum and flowing air to an air plenum downstream ofmore »« less
Full Text Available August 2014
Apparatus for mixing fuel in a gas turbine

Patent Uhm, Jong Ho ; Johnson, Thomas Edward

A combustor nozzle includes an inlet surface and an outlet surface downstream from the inlet surface, wherein the outlet surface has an indented central portion. A plurality of fuel channels are arranged radially outward of the indented central portion, wherein the plurality of fuel channels extend through the outlet surface.
Full Text Available April 2015
Apparatus and method for a gas turbine nozzle

Patent Zuo, Baifang ; Ziminsky, Willy Steve ; Johnson, Thomas Edward ; Intile, John Charles ; Lacy, Benjamin Paul

A nozzle includes an inlet, an outlet, and an axial centerline. A shroud surrounding the axial centerline extends from the inlet to the outlet and defines a circumference. The circumference proximate the inlet is greater than the circumference at a first point downstream of the inlet, and the circumference at the first point downstream of the inlet is less than the circumference at a second point downstream of the first point. A method for supplying a fuel through a nozzle directs a first airflow along a first path and a second airflow along a second path separate from the firstmore »« less
Full Text Available February 2013
Systems and methods for detecting a flame in a fuel nozzle of a gas turbine

Patent Kraemer, Gilbert Otto ; Storey, James Michael ; Lipinski, John ; Mestroni, Julio Enrique ; Williamson, David Lee ; Marshall, Jason Randolph ; Krull, Anthony

A system may detect a flame about a fuel nozzle of a gas turbine. The gas turbine may have a compressor and a combustor. The system may include a first pressure sensor, a second pressure sensor, and a transducer. The first pressure sensor may detect a first pressure upstream of the fuel nozzle. The second pressure sensor may detect a second pressure downstream of the fuel nozzle. The transducer may be operable to detect a pressure difference between the first pressure sensor and the second pressure sensor.
Full Text Available May 2013
Fuel nozzle assembly for use as structural support for a duct structure in a combustor of a gas turbine engine

Patent Wiebe, David J ; Fox, Timothy A

A fuel nozzle assembly for use in a combustor apparatus of a gas turbine engine. An outer housing of the fuel nozzle assembly includes an inner volume and provides a direct structural connection between a duct structure and a fuel manifold. The duct structure defines a flow passage for combustion gases flowing within the combustor apparatus. The fuel manifold defines a fuel supply channel therein in fluid communication with a source of fuel. A fuel injector of the fuel nozzle assembly is provided in the inner volume of the outer housing and defines a fuel passage therein. The fuel passagemore »« less
Full Text Available March 2015