Jason H Fuller

US Patent:

7086829, Aug 8, 2006

Filed:

Feb 3, 2004

Appl. No.:

10/771195

Inventors:

Jason Fuller - Simpsonville SC, US
Gary Itzel - Simpsonville SC, US
Cathy Chiurato - Simpsonville SC, US
Matthew Findlay - Simpsonville SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F04D 29/58
F01D 5/18

US Classification:

415115, 416 90 R, 416 97 A

Abstract:

A nozzle assembly () for a turbine engine includes an inner band () and an outer band () spaced apart from each other. An airfoil () installed between the bands has a leading edge () and a trailing edge (). The airfoil has cavities formed in it for fluid flow through the nozzle assembly. A plurality of film cooling holes (A–H) are formed in a sidewall of the airfoil on a concave side of the assembly, and a plurality of film cooling holes (J–R) are formed in a sidewall of the nozzle on a convex side thereof. The holes are formed on each side of the airfoil, adjacent the trailing edge of the nozzle, in a plurality of rows of holes including at least a forward row (C, J), an aft row (A, L), and an intermediate row (B, K). The spacing between the intermediate row and aft row is substantially closer than the spacing between the forward row and the intermediate row.

US Patent:

7770400, Aug 10, 2010

Filed:

Dec 26, 2006

Appl. No.:

11/645367

Inventors:

Robert J. Iasillo - Simpsonville SC, US
Jason D. Fuller - Simpsonville SC, US
Steve W. Backman - Simpsonville SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02C 7/22
F02C 7/26

US Classification:

60776, 60 39281

Abstract:

A method for controlling the rate of transfer between operation with gas and liquid fuel types to minimize the time in undesirable operational mode, thereby preventing excessive wear and damage to gas turbine hardware. The method includes completing a fuel prefill for the oncoming fuel type through the fuel system and determining if a total fuel demand for the oncoming fuel type is greater than a predetermined flow rate for the oncoming fuel type. The method also includes selecting a fuel transfer rate and transferring from the offgoing fuel type to the oncoming fuel type at the selected fuel transfer rate. Further, the method includes determining if the offgoing fuel flowrate has decreased below a predetermined flow rate for the offgoing fuel type, selecting a final fuel transfer rate and completing the transfer from offgoing fuel type to oncoming fuel type at a selected final fuel transfer rate.

US Patent:

7950238, May 31, 2011

Filed:

Oct 26, 2006

Appl. No.:

11/586763

Inventors:

Robert J. Iasillo - Simpsonville SC, US
Jason D. Fuller - Simpsonville SC, US
William F. Seely - Taylors SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02C 1/00

US Classification:

60772, 60776, 60 39094

Abstract:

A method is provided for performing a transfer from gas fuel operation to liquid fuel operation in a gas turbine with a dual fuel system. The method includes initiating a predetermined uncontrolled liquid fuel prefill flow rate through the liquid fuel system, sensing an onset of the uncontrolled liquid fuel flow to the combustor nozzles, and initiating transfer from gas fuel operation to liquid fuel operation when the flow of uncontrolled liquid fuel at the combustor nozzles is sensed. The onset of uncontrolled liquid fuel flow to the combustor nozzles is determined by monitoring changes of Fuel Normalized Power (FNP), a parameter sensitive to uncontrolled liquid fuel flow, and determining when FNP exceeds a threshold algorithm value.

US Patent:

7997083, Aug 16, 2011

Filed:

Aug 28, 2007

Appl. No.:

11/845979

Inventors:

Christopher T. Meadows - Simpsonville SC, US
Douglas E. Dean - Greer SC, US
Jason D. Fuller - Simpsonville SC, US
William F. Seely - Taylors SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02C 7/00

US Classification:

60773, 60 39281

Abstract:

A method and controller for identifying lean blowout conditions in a Dry Low NO(DLN) combustor during a premix mode. An effective approach to quickly and reliably identify a blowout during operation in the premix mode is by the effect on fuel normalized power (FNP). FNP is a useful signal, in that a power reduction from a blowout may be distinguished much slower changes in power resulting from global fuel demand (changing load request). A difference between the FNP and a filtered FNP parameter may be compared against a predetermined threshold. If the difference exceeds the threshold, a lean blowout is identified and a signal may be transmitted to the turbine controller to reposition combustor operation away from blowout conditions.

US Patent:

8046986, Nov 1, 2011

Filed:

Dec 10, 2007

Appl. No.:

11/953524

Inventors:

Rahul J. Chillar - Greenville SC, US
Robert W. Taylor - Ponte Vedra Beach FL, US
Peter Martin Maly - Lake Forest CA, US
Jason D. Fuller - Simpsonville SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02G 1/00

US Classification:

60 3952, 60773

Abstract:

A method and system for controlling an exhaust gas recirculation (EGR) system is provided. The method and system may incorporate a device or devices that continuously monitors an exhaust stream for harmful constituents. The method and system may control components of the EGR system based on the concentration of harmful constituents within the exhaust.

US Patent:

8145403, Mar 27, 2012

Filed:

Dec 31, 2008

Appl. No.:

12/347384

Inventors:

Jason D. Fuller - Simpsonville SC, US
Garth C. Frederick - Greenville SC, US
John C. Maters - Liberty SC, US
Douglas C. Morgan - Moore SC, US
Luls M. Flamand - Simpsonville SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G06F 19/00
G06G 7/70

US Classification:

701100, 701 99, 60 39281, 60736, 60746, 60773, 60790

Abstract:

A method and algorithm are provided to operate a gas turbine at baseload in an emission compliant capable mode to avoid combustion dynamics while operating with cold fuel and hot fuel combustion hardware. The method includes performing a gas turbine operational sequence such as a startup to an emission compliant capable mode. A gas fuel temperature is measured. The gas turbine is operated in the emissions compliant capable mode according to a designated fuel split for avoiding combustion dynamics when a temperature for a gas fuel is below a designated value. A determination is made whether a modified wobbe index for the gas fuel is below an emissions compliant value. An alarm is activated if the modified wobbe index is below the emissions compliant value to notify the operator of a potential emissions shift.

US Patent:

8448418, May 28, 2013

Filed:

Mar 11, 2008

Appl. No.:

12/046074

Inventors:

Noemie Dion Ouellet - Greenville SC, US
Jason D. Fuller - Simpsonville SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02C 7/08

US Classification:

60 3952, 60 395

Abstract:

A method for controlling a turbomachine exhaust gas recirculation (EGR) system is provided. The EGR system may allow for the removal and sequestration of at least one constituent within the exhaust before the recirculation occurs.

US Patent:

8474268, Jul 2, 2013

Filed:

Aug 16, 2007

Appl. No.:

11/839708

Inventors:

Jason D. Fuller - Simpsonville SC, US
Derrick W. Simons - Greer SC, US
Douglas E. Dean - Greer SC, US
Christopher T. Meadows - Simpsonville SC, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02C 9/00

US Classification:

60773, 60 39281, 60804

Abstract:

A method of managing transient events regularly seen during gas turbine operation that may cause undesirable operation and hardware damage. During certain transient operations, a lag may be seen between reference exhaust temperature and actual turbine exhaust temperature. This lag can result in an under-fired condition within the combustion system of variable magnitude and duration. Either fuel split schedules or a control algorithm can be positioned during these transients to prevent combustion dynamics or loss of flame. Combustion dynamics are known to cause damage that may require hardware replacement. Once the transient has completed, normal control operation is resumed.