William W York

US Patent:

8276385, Oct 2, 2012

Filed:

Oct 8, 2009

Appl. No.:

12/575929

Inventors:

Baifang Zuo - Simpsonville SC, US
Abdul Rafey Khan - Greenville SC, US
William David York - Greer SC, US
Willy Steve Ziminsky - Greenville SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02C 1/00

US Classification:

60737, 60742, 2394195

Abstract:

A fuel injection nozzle includes a body member having an upstream wall opposing a downstream wall, and an internal wall disposed between the upstream wall and the downstream wall, a first chamber partially defined by the an inner surface of the upstream wall and a surface of the internal wall, a second chamber partially defined by an inner surface of the downstream wall and a surface of the internal wall a first gas inlet communicative with the first chamber operative to emit a first gas into the first chamber, a second gas inlet communicative with the second chamber operative to emit a second gas into the second chamber, and a plurality of mixing tubes, each of the mixing tubes having a tube inner surface, a tube outer surface, a first inlet communicative with an aperture in the upstream wall operative to receive a third gas.

US Patent:

8511086, Aug 20, 2013

Filed:

Mar 1, 2012

Appl. No.:

13/409326

Inventors:

Jong Ho Uhm - Simpsonville SC, US
Thomas Edward Johnson - Greer SC, US
Baifang Zuo - Simpsonville SC, US
William David York - Greer SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02C 1/00

US Classification:

60737

Abstract:

A system for reducing combustion dynamics in a combustor includes an end cap having an upstream surface axially separated from a downstream surface, and tube bundles extend through the end cap. A diluent supply in fluid communication with the end cap provides diluent flow to the end cap. Diluent distributors circumferentially arranged inside at least one tube bundle extend downstream from the downstream surface and provide fluid communication for the diluent flow through the end cap. A method for reducing combustion dynamics in a combustor includes flowing fuel through tube bundles that extend axially through an end cap, flowing a diluent through diluent distributors into a combustion chamber, wherein the diluent distributors are circumferentially arranged inside at least one tube bundle and each diluent distributor extends downstream from the end cap, and forming a diluent barrier in the combustion chamber between at least one pair of adjacent tube bundles.

US Patent:

8539773, Sep 24, 2013

Filed:

Feb 4, 2009

Appl. No.:

12/365382

Inventors:

Willy Steve Ziminsky - Simpsonville SC, US
Thomas Edward Johnson - Greer SC, US
Benjamin Paul Lacy - Greer SC, US
William David York - Greer SC, US
Jong Ho Uhm - Simpsonville SC, US
Baifang Zuo - Simpsonville SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F23R 3/30
F23R 3/32

US Classification:

60737, 60740, 60742, 60746

Abstract:

A fuel/air mixing tube for use in a fuel/air mixing tube bundle is provided. The fuel/air mixing tube includes an outer tube wall extending axially along a tube axis between an inlet end and an exit end, the outer tube wall having a thickness extending between an inner tube surface having a inner diameter and an outer tube surface having an outer tube diameter. The tube further includes at least one fuel injection hole having a fuel injection hole diameter extending through the outer tube wall, the fuel injection hole having an injection angle relative to the tube axis. The invention provides good fuel air mixing with low combustion generated NOx and low flow pressure loss translating to a high gas turbine efficiency, that is durable, and resistant to flame holding and flash back.

US Patent:

20100180564, Jul 22, 2010

Filed:

Jan 21, 2009

Appl. No.:

12/356799

Inventors:

Willy Steve Ziminsky - Simpsonville SC, US
Jong Ho Uhm - Simpsonville SC, US
William David York - Greer SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02C 9/28

US Classification:

60 391, 60779

Abstract:

A method may mitigate a flashback condition in a gas turbine. The gas turbine may include a fuel nozzle. The method may include detecting the flashback condition in the fuel nozzle, and interrupting a flow of fuel to the fuel nozzle.

US Patent:

20120198856, Aug 9, 2012

Filed:

Feb 4, 2011

Appl. No.:

13/021298

Inventors:

Jong Ho UHM - Simpsonville SC, US
Baifang ZUO - Simpsonville SC, US
William David YORK - Greer SC, US
Shivakumar SRINIVASAN - Greer SC, US

Assignee:

GENERAL ELECTRIC COMPANY - Schenectady NY

International Classification:

F23R 3/28
F23K 5/10

US Classification:

60772, 60737

Abstract:

A turbomachine combustor includes a combustion chamber; a plurality of micro-mixer nozzles mounted to an end cover of the combustion chamber, each including a fuel supply pipe affixed to a nozzle body located within the combustion chamber, wherein fuel from the supply pipe mixes with air in the nozzle body prior to discharge into the combustion chamber; and wherein at least some of the nozzle bodies of the plurality of micro-mixer nozzles have axial length dimensions that differ from axial length dimensions of other of the nozzle bodies.

US Patent:

20130045450, Feb 21, 2013

Filed:

Aug 19, 2011

Appl. No.:

13/213460

Inventors:

Jong Ho Uhm - Simpsonville SC, US
Willy Steve Ziminsky - Simpsonville SC, US
Thomas Edward Johnson - Greer SC, US
Shiva Srinivasan - Greer SC, US
William David York - Greer SC, US

Assignee:

GENERAL ELECTRIC COMPANY - Schenectady NY

International Classification:

F23D 5/00

US Classification:

431 8, 431198

Abstract:

A system for reducing combustion dynamics in a combustor includes an end cap that extends radially across the combustor and includes an upstream surface axially separated from a downstream surface. A combustion chamber is downstream of the end cap, and tubes extend from the upstream surface through the downstream surface. Each tube provides fluid communication through the end cap to the combustion chamber. The system further includes means for reducing combustion dynamics in the combustor. A method for reducing combustion dynamics in a combustor includes flowing a working fluid through tubes that extend axially through an end cap that extends radially across the combustor and obstructing at least a portion of the working fluid flowing through a first set of the tubes.

US Patent:

20130174568, Jul 11, 2013

Filed:

Jan 5, 2012

Appl. No.:

13/343926

Inventors:

Jong Ho Uhm - Simpsonville SC, US
Willy Steve Ziminsky - Simpsonville SC, US
Thomas Edward Johnson - Greer SC, US
William David York - Greer SC, US

Assignee:

GENERAL ELECTRIC COMPANY - Schenectady NY

International Classification:

F02C 7/22
F23R 3/54
F23R 3/28

US Classification:

60776, 60742

Abstract:

A combustor includes a tube bundle that extends radially across at least a portion of the combustor. The tube bundle includes an upstream surface axially separated from a downstream surface. A plurality of tubes extends from the upstream surface through the downstream surface, and each tube provides fluid communication through the tube bundle. A baffle extends axially inside the tube bundle between adjacent tubes. A method for distributing fuel in a combustor includes flowing a fuel into a fuel plenum defined at least in part by an upstream surface, a downstream surface, a shroud, and a plurality of tubes that extend from the upstream surface to the downstream surface. The method further includes impinging the fuel against a baffle that extends axially inside the fuel plenum between adjacent tubes.

US Patent:

20130227953, Sep 5, 2013

Filed:

Mar 1, 2012

Appl. No.:

13/409309

Inventors:

Jong Ho Uhm - Simpsonville SC, US
Thomas Edward Johnson - Greer SC, US
Baifang Zuo - Simpsonville SC, US
William David York - Greer SC, US

Assignee:

GENERAL ELECTRIC COMPANY - Schenectady NY

International Classification:

F23R 3/28

US Classification:

60772, 60738

Abstract:

A system for reducing combustion dynamics in a combustor includes an end cap having an upstream surface axially separated from a downstream surface, and tube bundles extend from the upstream surface through the downstream surface. A divider inside a tube bundle defines a diluent passage that extends axially through the downstream surface, and a diluent supply in fluid communication with the divider provides diluent flow to the diluent passage. A method for reducing combustion dynamics in a combustor includes flowing a fuel through tube bundles, flowing a diluent through a diluent passage inside a tube bundle, wherein the diluent passage extends axially through at least a portion of the end cap into a combustion chamber, and forming a diluent barrier in the combustion chamber between the tube bundle and at least one other adjacent tube bundle.