Alan R. Lovelace
Engineering at Maple Bnd Dr, Humble, TX
License number
Louisiana PE.0023887
Issued Date
Jul 24, 1990
Expiration Date
Mar 31, 2002
Category
Civil Engineer
Type
Mechanical Engineer
Address
Address
3015 Maple Bend Dr, Humble, TX 77345
Professional information
Gas Turbine Fuel Pilot Nozzle
US Patent:
6886346, May 3, 2005
Filed:
Aug 20, 2003
Appl. No.:
10/644385
Inventors:
Peter A. Sobieski - El Lago TX, US
Kelly Shawn Smith - Kingwood TX, US
Alan Lovelace - Kingwood TX, US
Hany Rizkalla - Stuart FL, US
Kelly Shawn Smith - Kingwood TX, US
Alan Lovelace - Kingwood TX, US
Hany Rizkalla - Stuart FL, US
Assignee:
Power Systems Mfg., LLC - Jupiter FL
International Classification:
F02C007/22
US Classification:
60776, 60740
Abstract:
A pilot fuel nozzle configuration for use in a combustor is disclosed having a natural frequency outside the range of the operating frequencies of a gas turbine engine. Multiple embodiments are disclosed for the improved pilot fuel nozzle including configurations for newly manufactured nozzles, repair to existing pilot nozzles, as well as multiple natural frequency levels for the improved pilot fuel nozzle. The pilot fuel nozzle comprises an elongated housing, first and second flanges, and a nozzle tip, with the first flange fixed to the elongated housing at a first end and the nozzle tip fixed to the second end, opposite of the first end. The second flange is fixed along the elongated housing and is used for attaching the pilot fuel nozzle to a combustor. The present invention incorporates an increased wall thickness along at least a mid-span portion of the pilot nozzle to increase the stiffness and change the natural frequency.