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:
Jun. 21, 2011
Filed:
Feb. 23, 2007
Andreas Brautsch, Wuerenlingen, CH;
Hanspeter Hardegger, Nuerensdorf, CH;
Daniel Burri, Rothenburg, CH;
Bettina Paikert, Oberrohrdorf, CH;
Andreas Brautsch, Wuerenlingen, CH;
Hanspeter Hardegger, Nuerensdorf, CH;
Daniel Burri, Rothenburg, CH;
Bettina Paikert, Oberrohrdorf, CH;
Alstom Technology Ltd, Baden, CH;
Abstract
A lance for a hybrid burner of a combustor of a gas turbine, includes an inner passage for a liquid fuel, an outer passage coaxially enclosing the inner passage for a gaseous fuel, a plurality of star like arranged outer nozzles branching off radially from the outer passage, a plurality of inner nozzles, which branch off radially from the inner passage and which each extend coaxially inside one of the outer nozzles, and a distributor section, which is arranged upstream of the outer nozzles in the outer passage and has a plurality of star like arranged, coaxially extending through-openings for the gaseous fuel. In order to reduce the flow resistance in the gas path of the lance, the through-openings each have an opening width which is larger in the circumferential direction than in the radial direction.