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. 07, 2010
Filed:
Aug. 18, 2006
Clifford E. Johnson, Orlando, FL (US);
Samer P. Wasif, Oviedo, FL (US);
Clifford E. Johnson, Orlando, FL (US);
Samer P. Wasif, Oviedo, FL (US);
Siemens Energy, Inc., Orlando, FL (US);
Abstract
One or more Helmholtz-type resonators () is/are provided at the junction () of a combustor () and a combustion chamber () of a gas turbine engine (). In one embodiment, adjacent Helmholtz-type resonators (), which may be separated by respective baffles (), have different volumes that help provide for damping different undesired combustion-generated acoustic pressure waves. In some embodiments, a structural member () may be provided between adjacent Helmholtz-type resonators () at the junction. At least one of the plurality of Helmholtz-type resonators comprises one or more inlet openings (), and one or more exit openings (). Embodiments (-) are described in which Helmholtz-type resonators provided at the junction are enlarged in size using various approaches. The positioning at the junction, upstream of the space () in which combustion occurs, and providing a plurality of differently sized resonators, provides for improved flexibility and resonator damping efficiencies.