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Title: Dimpled/grooved face on a fuel injection nozzle body for flame stabilization and related method

Patent ·
OSTI ID:1092959
; ; ;

A fuel injection head for a fuel nozzle used in a gas turbine combustor includes a substantially hollow body formed with an upstream end face, a downstream end face and a peripheral wall extending therebetween. A plurality of pre-mix tubes or passages extend axially through the hollow body with inlets at the upstream end face and outlets at the downstream end face. An exterior surface of the downstream end face is formed with three-dimensional surface features that increase a total surface area of the exterior surface as compared to a substantially flat, planar downstream end face.

Research Organization:
General Electric Co., Schenectady, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42643
Assignee:
General Electric Company (Schenectady, NY)
Patent Number(s):
8,511,092
Application Number:
12/855,801
OSTI ID:
1092959
Country of Publication:
United States
Language:
English

References (6)

Multi-tube thermal fuse for nozzle protection from a flame holding or flashback event patent July 2012
Injection assembly for a combustor patent November 2010
Combustion chamber of a gas turbine and method of operating it patent November 1990
Multi-venturi tube fuel injector for a gas turbine combustor patent March 2006
Premix combustor patent July 1978
Gas-turbine engine combustion system patent March 2003

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