Gregory A Boardman

US Patent:

8347631, Jan 8, 2013

Filed:

Mar 3, 2009

Appl. No.:

12/397240

Inventors:

Donald Mark Bailey - Simpsonville SC, US
Scott R Simmons - Simpsonville SC, US
Gregory Allen Boardman - Greer SC, US
Xiomara Irizarry-Rosado - Greer SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02C 1/00
F02G 3/00

US Classification:

60740, 60742, 60 3955, 239422

Abstract:

In an embodiment, a system includes an end cover and a liquid cartridge. The liquid cartridge is configured to mount in a fuel nozzle of a turbine engine, wherein the liquid cartridge comprises a one piece flange configured to couple to the end cover, wherein the flange comprises a water inlet, an air inlet, and a fuel inlet.

US Patent:

8393891, Mar 12, 2013

Filed:

Sep 18, 2006

Appl. No.:

11/532546

Inventors:

Gregory Allen Boardman - Greer SC, US
Thomas Edward Johnson - Greer SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F23C 5/00

US Classification:

431 8, 431 12, 431 22, 431350, 431351, 431354, 60741, 60746, 60737, 23921411, 23921417

Abstract:

A combustion nozzle for use in a turbine. The combustion nozzle may include a center body and a cone extending from the center body. The cone may include a number of apertures positioned therein.

US Patent:

8418469, Apr 16, 2013

Filed:

Sep 27, 2010

Appl. No.:

12/890903

Inventors:

Geoffrey David Myers - Simpsonville SC, US
Nishant Govindbhai Parsania - Bangalore, IN
Gregory Allen Boardman - Greer SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02C 1/00

US Classification:

60748, 60737

Abstract:

A fuel nozzle assembly is disclosed. The fuel nozzle assembly comprises an outer burner tube and an inner burner tube defining a pre-mixing annulus therebetween. The fuel nozzle assembly further comprises a swirler assembly, the swirler assembly comprising a plurality of swirler vanes disposed in an annular array about the inner burner tube and configured to interact with primary air upstream of the pre-mixing annulus. The fuel nozzle assembly further comprises an air injection feature configured to flow secondary air into the pre-mixing annulus downstream of the swirler assembly such that the secondary air flows in a generally linear path longitudinally with respect to the pre-mixing annulus and adjacent at least one of the outer burner tube and the inner burner tube.

US Patent:

8590311, Nov 26, 2013

Filed:

Apr 28, 2010

Appl. No.:

12/768758

Inventors:

Nishant Govindbhai Parsania - Bangalore, IN
Gregory Allen Boardman - Greer SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02G 3/00
F02C 1/00

US Classification:

60737, 60738, 60740, 60742, 60746, 60747, 60748

Abstract:

An improved mixing tube design and fuel nozzle that allows for a more uniform and thorough mixing of fuel and air being fed to the combustor of a gas turbine engine, wherein each of a plurality of mixing tubes comprises a pair of concentric hollow cylinders that define a ring-like, annular path for the flow of fuel between the two hollow cylinders in each mixing tube, a plurality of air injection slots formed in the concentric hollow cylinders defining corresponding air flow paths from the outside into the interior of each mixing tube, and one or more fuel injection ports formed in selected ones of the plurality of air injection slots that allow for the flow of fuel from the annular path formed by the hollow cylinders into the air flow path, resulting in significantly better mixing and improved thermodynamic behavior of the fuel and air mixture downstream of the nozzle and upstream of the combustor.

US Patent:

8042339, Oct 25, 2011

Filed:

Mar 12, 2008

Appl. No.:

12/073939

Inventors:

Benjamin Lacy - Greenville SC, US
Balachandar Varatharajan - Clifton Park NY, US
Willy Steve Ziminsky - Greenville SC, US
Gilbert O. Kraemer - Greer SC, US
Gregory Allen Boardman - Greer SC, US
Ertan Yilmaz - Niskayuna NY, US
Patrick Melton - Horse Shoe NC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02C 1/00
F02G 3/00

US Classification:

60740, 60737, 60752, 60804

Abstract:

The present invention is directed to a lean direct injection (LDI) combustion system for a gas turbine using a shell and tube heat exchanger concept to construct a shell and tube lean direct injector (“LDI”) for the combustion system. One side of the LDI injector, either the shell side or the tube side, carries an oxidizer, such as air, to the combustor, while the other side of the LDI injector carries fuel to the combustor. Straight or angled holes drilled in an end plate of the combustor allow the fuel to enter the combustor and mix with air being injected into the combustor.

US Patent:

8205452, Jun 26, 2012

Filed:

Feb 2, 2009

Appl. No.:

12/364488

Inventors:

Gregory Allen Boardman - Greer SC, US
Patrick Benedict Melton - Horse Shoe NC, US
Christine Elaine Simu - Greenville SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02C 1/00
F02C 7/08

US Classification:

60737, 60738

Abstract:

In one embodiment, a system includes a fuel nozzle that includes a fuel injector configured to output a fuel flow and a premixer tube disposed about the fuel flow output from the fuel injector. The premixer tube includes a perforated portion and a non-perforated portion, and the non-perforated portion is downstream of the perforated portion.

US Patent:

20030115884, Jun 26, 2003

Filed:

Dec 20, 2001

Appl. No.:

10/027305

Inventors:

Gregory Boardman - Spring Valley CA, US

International Classification:

F02C007/22

US Classification:

060/776000

Abstract:

A fuel nozzle for a gas turbine engine injects a liquid fuel flow from a liquid fuel passage in the swirler vane. An air flow over the swirler vane atomizes the liquid fuel flow to form a fuel air mixture. The fuel nozzle eliminates the need for a conventional air blast atomizer.

US Patent:

20080276622, Nov 13, 2008

Filed:

May 7, 2007

Appl. No.:

11/745155

Inventors:

Thomas Edward Johnson - Greer SC, US
Gregory Allen Boardman - Greer SC, US
John Brandon MacMillan - Liberty SC, US

International Classification:

F02C 7/22

US Classification:

60800, 60 3934

Abstract:

A fuel nozzle includes a swirler assembly including a radially inner surface and a radially outer surface, a plurality of vanes coupled to the swirler assembly radially outer surface. Each vane includes a first sidewall and a second sidewall, the first and second sidewalls are joined at a leading edge and at an axially-spaced trailing edge, and a plurality of openings are formed through each respective vane. Each opening extends from the leading edge to the passage to define a flow passage that extends from the passage to the leading edge. A method for fabricating a fuel nozzle assembly is also described.