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Title: Cap assembly for a bundled tube fuel injector

Patent ·
OSTI ID:1248879

A cap assembly for a bundled tube fuel injector includes an impingement plate and an aft plate that is disposed downstream from the impingement plate. The aft plate includes a forward side that is axially separated from an aft side. A tube passage extends through the impingement plate and the aft plate. A tube sleeve extends through the impingement plate within the tube passage towards the aft plate. The tube sleeve includes a flange at a forward end and an aft end that is axially separated from the forward end. A retention plate is positioned upstream from the impingement plate. A spring is disposed between the retention plate and the flange. The spring provides a force so as to maintain contact between at least a portion of the aft end of the tube sleeve and the forward side of the aft plate.

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):
9,322,555
Application Number:
13/932,317
OSTI ID:
1248879
Resource Relation:
Patent File Date: 2013 Jul 01
Country of Publication:
United States
Language:
English

References (12)

Combustion chamber of a gas turbine with pre-mixing and pre-evaporation elements patent October 1983
Self-aligning fuel nozzle assembly patent June 1984
Dry low NOx multi-nozzle combustion liner cap assembly patent January 1994
Modular combustor dome patent October 2001
Gas turbine combustor and operating method thereof patent August 2005
Combustion turbine engine and methods of assembly patent February 2012
Apparatus for fuel injection in a turbine engine patent June 2012
Bundled Multi-Tube Nozzle For A Turbomachine patent-application July 2010
Premixed Direct Injection Disk patent-application September 2010
Effusion Plate Using Additive Manufacturing Methods patent-application July 2014
System Having Multi-Tube Fuel Nozzle with Floating Arrangement of Mixing Tubes patent-application September 2014
System for supporting a bundled tube fuel injector within a combustor patent-application January 2015