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:
Aug. 23, 2005
Filed:
Nov. 19, 2002
Robert W. Dawson, Oviedo, FL (US);
Robert W. Dawson, Oviedo, FL (US);
Siemens Westinghouse Power Corporation, Orlando, FL (US);
Abstract
A gas turbine combustor () having a first grouping () of pre-mix burners (″) having mixing passages () that are geometrically different than the mixing passages () of a second grouping () of pre-mix burners (″). The aerodynamic differences created by these geometric differences provide a degree of control over combustion properties of the respective flames () produced in a downstream combustion chamber () when the two groupings of burners are fueled by separate fuel stages (). The geometric difference between the fuel passages of the two groupings may be outlet diameter, slope of convergence of the passage diameter, or outlet contour. The fuel injection regions () of all of the burners may be identical to reduce cost and inventory complexity. The burners may be arranged in a ring () with a center pre-mix burner () being identical to burners of either of the groupings.