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.
Patent No.:
Date of Patent:
Sep. 03, 1996
Filed:
Aug. 22, 1995
Warren J Mick, Altamont, NY (US);
Mitchell R Cohen, Troy, NY (US);
General Electric Co., Schenectady, NY (US);
Abstract
A method of operating a combustor for a turbine in the premixed mode includes flowing fuel through a symmetrical annular array of fuel nozzles to provide an asymmetrical fuel pattern across the combustor. Each nozzle includes an air swirler and the fuel is injected at axially spaced locations on opposite sides of the swirler. The asymmetrical fuel flow is provided during a diffusion mode of operation prior to transition between the diffusion mode and also during the transition. Near full power, the fuel is supplied equally among the fuel nozzles operating in the premixed mode. The asymmetric fuel flow stabilizes the combustor and inhibits high amplitude combustion noise and the axial staging of the fuel achieves low emission operation in the premixed mode.