Brian S Mack

US Patent:

6430932, Aug 13, 2002

Filed:

Jul 19, 2001

Appl. No.:

09/909029

Inventors:

Vincent C. Martling - West Palm Beach FL
Brian R. Mack - Palm City FL
Robert J. Kraft - Palm City FL
Mark A. Minnich - Jupiter FL

Assignee:

Power Systems Mfg., LLC - Jupiter FL

International Classification:

F02G 300

US Classification:

60760, 60798

Abstract:

A combustion liner assembly for reducing nitric oxide (NOx) emissions is disclosed. This combustion liner utilizes an annular plenum outside the liner shell for the purpose of containing cooling air that has been heated and reintroducing it into the combustion process. The air plenum can be enlarged to increase the amount of cooling air contained within and still allow for installation of the liner assembly into the combustor by utilizing recesses that locally reduce the diameter of the air plenum to allow it to pass by liner mounting pegs within the combustor assembly.

US Patent:

6675581, Jan 13, 2004

Filed:

Jul 15, 2002

Appl. No.:

10/195589

Inventors:

Peter Stuttaford - Jupiter FL
Stephen T. Jennings - Palm City FL
Ryan McMahon - North Palm Beach FL
Brian R. Mack - Palm City FL

Assignee:

Power Systems MFG, LLC - Jupiter FL

International Classification:

F02C 322

US Classification:

60737

Abstract:

A premix fuel nozzle and method of operation for use in a gas turbine combustor is disclosed. The premix fuel nozzle utilizes a fin assembly comprising a plurality of radially extending fins for injection of fuel and compressed air in order to provide a more uniform injection pattern. The fuel and compressed air mixes upstream of the combustion chamber and flows into the combustion chamber as a homogeneous mixture. The premix fuel nozzle includes a plurality of coaxial passages, which provide fuel and compressed air to the fin assembly, as well as compressed air to cool the nozzle cap assembly.

US Patent:

6691516, Feb 17, 2004

Filed:

Jul 15, 2002

Appl. No.:

10/195796

Inventors:

Peter Stuttaford - Jupiter FL
Stephen T. Jennings - Palm City FL
Ryan McMahon - North Palm Beach FL
Brian R. Mack - Palm City FL

Assignee:

Power Systems Mfg, LLC - Jupiter FL

International Classification:

F23R 320

US Classification:

60737, 60742

Abstract:

A premix fuel nozzle and method of operation for use in a gas turbine combustor is disclosed. The premix fuel nozzle utilizes a fin assembly comprising a plurality of radially extending fins for injection of fuel and compressed air in order to provide a more uniform injection pattern. The fuel and compressed air mixes upstream of the combustion chamber and flows into the combustion chamber as a homogeneous mixture. The premix fuel nozzle includes a plurality of coaxial passages, which provide fuel and compressed air to the fin assembly, as well as compressed air to cool the nozzle cap assembly. An alternate embodiment includes an additional fuel injection region located along a conically tapered portion of the premixed fuel nozzle, downstream of the fin assembly.

US Patent:

6722132, Apr 20, 2004

Filed:

Jul 15, 2002

Appl. No.:

10/195823

Inventors:

Peter Stuttaford - Jupiter FL
Stephen T. Jennings - Palm City FL
Ryan McMahon - North Palm Beach FL
Brian R. Mack - Palm City FL

Assignee:

Power Systems MFG, LLC - Jupiter FL

International Classification:

F02G 100

US Classification:

60737, 60735, 60740

Abstract:

A dual fuel premix nozzle and method of operation for use in a gas turbine combustor is disclosed. The dual fuel premix nozzle utilizes a fin assembly comprising a plurality of radially extending fins for injection of gas fuel and compressed air in order to provide a more uniform injection pattern and homogeneous mixture. The premix fuel nozzle includes a plurality of coaxial passages, which provide gaseous fuel and compressed air to the fin assembly. When in liquid fuel operation, the gas circuits are purged with compressed air and liquid fuel and water pass through coaxial passages to the tip of the dual fuel premix fuel nozzle, where they inject liquid fuel and water into the secondary combustion chamber. An alternate embodiment includes an additional gas fuel injection region located along a conically tapered portion of the premixed fuel nozzle, downstream of the fin assembly.

US Patent:

6813890, Nov 9, 2004

Filed:

Dec 20, 2002

Appl. No.:

10/324949

Inventors:

Vincent C. Martling - Boynton Beach FL
Robert J. Kraft - Palm City FL
Brian R. Mack - Palm City FL

Assignee:

Power Systems Mfg. LLC. - Jupiter FL

International Classification:

F23R 330

US Classification:

60737, 60740

Abstract:

A premix secondary fuel nozzle for use in transferring a flame from a first combustion chamber to a second combustion chamber is disclosed. The secondary fuel nozzle includes multiple fuel circuits, each of which are fully premixed, and neither of which are injected in a manner to directly initiate or support a pilot flame, thereby lowering emissions. Multiple embodiments are disclosed for alternate configurations of a first fuel injector, including an annular manifold and a plurality of radially extending tubes.

US Patent:

7000403, Feb 21, 2006

Filed:

Mar 12, 2004

Appl. No.:

10/799970

Inventors:

John Henriquez - Hobe Sound FL, US
Jacob McLeroy - Stuart FL, US
Brian R. Mack - Palm City FL, US
Vincent C. Martling - Jupiter FL, US

Assignee:

Power Systems Mfg., LLC - Jupiter FL

International Classification:

F02C 7/22
F23R 3/36

US Classification:

60776, 60742, 60737, 60748

Abstract:

A fuel nozzle and gas turbine combustor capable of operating on multiple fuels with reduced carbon build-up to the fuel nozzle and adjacent combustor components is disclosed. The fuel nozzle incorporates a reconfigured gas fuel assembly and mixing tube to eliminate known areas of recirculation. Furthermore, the liquid fuel assembly includes reconfigured spray characteristics to further reduce droplet interaction with the mixing tube.

US Patent:

7165405, Jan 23, 2007

Filed:

Jul 15, 2002

Appl. No.:

10/195615

Inventors:

Peter Stuttaford - Jupiter FL, US
Stephen T. Jennings - Palm City FL, US
Ryan McMahon - North Palm Beach FL, US
Brian R. Mack - Palm City FL, US

Assignee:

Power Systems Mfg. LLC - Jupiter FL

International Classification:

F23R 3/30

US Classification:

60737, 60 39463, 60742

Abstract:

A dual fuel premix nozzle and method of operation for use in a gas turbine combustor is disclosed. The dual fuel premix nozzle utilizes a fin assembly comprising a plurality of radially extending fins for injection of fuel and compressed air in order to provide a more uniform injection pattern. When in gas operation, the fuel and compressed air mixes upstream of the combustion chamber and flows into the combustion chamber as a homogeneous mixture. The premix fuel nozzle includes a plurality of coaxial passages, which provide gaseous fuel and compressed air to the fin assembly. When in liquid fuel operation, the gas circuits are purged with compressed air and liquid fuel and water pass through coaxial passages to the tip of the dual fuel premix fuel nozzle, where they inject liquid fuel and water into the secondary combustion chamber.