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Title: Flame tolerant secondary fuel nozzle

Abstract

A combustor for a gas turbine engine includes a plurality of primary nozzles configured to diffuse or premix fuel into an air flow through the combustor; and a secondary nozzle configured to premix fuel with the air flow. Each premixing nozzle includes a center body, at least one vane, a burner tube provided around the center body, at least two cooling passages, a fuel cooling passage to cool surfaces of the center body and the at least one vane, and an air cooling passage to cool a wall of the burner tube. The cooling passages prevent the walls of the center body, the vane(s), and the burner tube from overheating during flame holding events.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
General Electric Company, Schenectady, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1171102
Patent Number(s):
8,959,921
Application Number:
12/835,227
Assignee:
General Electric Company (Schenectady, NY)
DOE Contract Number:  
FC26-05NT42643
Resource Type:
Patent
Resource Relation:
Patent File Date: 2010 Jul 13
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 33 ADVANCED PROPULSION SYSTEMS

Citation Formats

Khan, Abdul Rafey, Ziminsky, Willy Steve, Wu, Chunyang, Zuo, Baifang, and Stevenson, Christian Xavier. Flame tolerant secondary fuel nozzle. United States: N. p., 2015. Web.
Khan, Abdul Rafey, Ziminsky, Willy Steve, Wu, Chunyang, Zuo, Baifang, & Stevenson, Christian Xavier. Flame tolerant secondary fuel nozzle. United States.
Khan, Abdul Rafey, Ziminsky, Willy Steve, Wu, Chunyang, Zuo, Baifang, and Stevenson, Christian Xavier. Tue . "Flame tolerant secondary fuel nozzle". United States. https://www.osti.gov/servlets/purl/1171102.
@article{osti_1171102,
title = {Flame tolerant secondary fuel nozzle},
author = {Khan, Abdul Rafey and Ziminsky, Willy Steve and Wu, Chunyang and Zuo, Baifang and Stevenson, Christian Xavier},
abstractNote = {A combustor for a gas turbine engine includes a plurality of primary nozzles configured to diffuse or premix fuel into an air flow through the combustor; and a secondary nozzle configured to premix fuel with the air flow. Each premixing nozzle includes a center body, at least one vane, a burner tube provided around the center body, at least two cooling passages, a fuel cooling passage to cool surfaces of the center body and the at least one vane, and an air cooling passage to cool a wall of the burner tube. The cooling passages prevent the walls of the center body, the vane(s), and the burner tube from overheating during flame holding events.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {2}
}

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