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:
Jan. 09, 2001
Filed:
Jul. 08, 1998
Wolfgang Polifke, Windisch, CH;
Christian Oliver Paschereit, Baden, CH;
Klaus Döbbeling, Windisch, CH;
ABB Search Ltd., Zurich, CH;
Abstract
In a gas turbine having a device for the fuel injection, which injects fuel into a mixing device (,), the injected fuel being mixed with combustion air in the mixing device (,), and in which the gas turbine also has a combustion chamber (,) arranged downstream of the mixing device (,), the length of the combustion chamber being L,and the length of the mixing device being L,, in order to suppress thermoacoustic vibrations the premix combustion chamber (,) containing the combustion chamber (,) and the mixing device (,) is designed in such a way that an acoustic pressure fluctuation which occurs in the premix combustion chamber (,) at the combustion-chamber outlet (,) is superimposed in phase opposition on an entropy-wave-induced pressure fluctuation at a certain frequency to be damped.