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:
Feb. 03, 2015
Filed:
Jan. 28, 2011
Fulvio Magni, Nussbaumen, CH;
Martin Andrea Von Planta, Oetwil a.d. Limmat, CH;
Frank Grimm, Baden, CH;
Dariusz Nowak, Untersiggenthal, CH;
Mischa Schaerer, Staufen, CH;
Fulvio Magni, Nussbaumen, CH;
Martin Andrea Von Planta, Oetwil a.d. Limmat, CH;
Frank Grimm, Baden, CH;
Dariusz Nowak, Untersiggenthal, CH;
Mischa Schaerer, Staufen, CH;
Alstom Technology Ltd., Baden, CH;
Abstract
A Helmholtz damper for a combustor of a gas turbine includes first and second damping volumes. The combustor has a combustion chamber disposed in a housing and closed off by a front plate at which a plurality of burners are exchangeably fastened. The burners are supplied with fuel via fuel lances which extend from outside the housing through a bushing of the housing to the associated burner. The first damping volume has a first end and a second end, the first end of the first damping volume being configured to attach a connecting passage extending to a front panel such that the Helmholtz damper is connectable with the front plate of the combustion chamber in place of one of the burners. The second damping volume has a first end and a second end and is arranged in series with the first damping volume along an axis of the Helmholtz damper with the first end of the second damping volume being detachably connected to the second end of the first damping volume so as to form a combined larger damping volume. The second end of the second damping volume is configured to attach a connecting tube extending from the second damping volume and through the bushing in place of a respective one of the fuel lances.