Randy J Danburg

US Patent:

20110314823, Dec 29, 2011

Filed:

Jun 24, 2010

Appl. No.:

12/822607

Inventors:

Craig F. Smith - Ashford CT, US
Hannes A. Alholm - Tolland CT, US
Jonathan J. Eastwood - Newington CT, US
Dennis J. Duhamel - Oakdale CT, US
David A. Burns - West Hartford CT, US
Randy J. Danburg - Scotland CT, US
Jeffrey D. Melman - Scottsdale AZ, US
David R. Wiley - Jupiter FL, US
Monica Pacheco-Tougas - Waltham MA, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

F02C 7/22

US Classification:

60737

Abstract:

A combustor liner cap assembly is provided for use in a multiple fuel nozzle combustor of a gas turbine. The combustor liner cap assembly includes a tube plate having a plurality of fuel nozzle openings and a plurality of open ended premix tubes extending aft from the tube plate. Each premix tube has a forward end having a forward edge, the forward end being received in a corresponding one of the fuel nozzle openings. Each premix tube is secured to the tube plate aft of the forward edge of the forward end of the premix tube, for example, metallurgically bonded, such as by welding or brazing, to the tube plate or threaded into the tube plate.