The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 07, 2017

Filed:

Jan. 27, 2014
Applicant:

Siemens Aktiengesellschaft, München, DE;

Inventors:

Steven Williams, Burlington, CA;

Timothy A. Fox, Hamilton, CA;

Reinhard Schilp, Orlando, FL (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F23R 3/34 (2006.01); F23R 3/36 (2006.01); F23R 3/38 (2006.01); F23R 3/22 (2006.01); F23R 3/28 (2006.01); F23D 14/22 (2006.01); F23D 14/24 (2006.01); F02C 7/266 (2006.01); F23D 11/38 (2006.01); F23D 11/42 (2006.01); F23D 3/22 (2006.01);
U.S. Cl.
CPC ...
F23R 3/343 (2013.01); F02C 7/266 (2013.01); F23D 3/22 (2013.01); F23D 11/38 (2013.01); F23D 11/42 (2013.01); F23D 14/22 (2013.01); F23D 14/24 (2013.01); F23R 3/36 (2013.01); F23R 3/38 (2013.01); F23D 2207/00 (2013.01);
Abstract

A pilot fuel nozzle for a combustor includes an igniter forming a central body extending along a longitudinal center of the nozzle. A nozzle tip includes a plurality of circumferentially spaced fuel passages and a plurality of circumferentially spaced air passages extending to an outer side of the nozzle tip. The central body extends through a center of the nozzle tip for producing a spark to ignite a fuel/air mixture adjacent to the nozzle tip. A plurality of fuel tubes extend along the central body, each of the fuel tubes having an outlet end engaged on the nozzle tip for delivery of fuel from the nozzle tip into a combustion chamber of the combustor An outer sleeve surrounds the fuel tubes and defines an annular space in fluid communication with the air passages of the nozzle tip between the outer sleeve and the central body.


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