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. 23, 2009
Filed:
Oct. 27, 2005
Alistaire S Holt, Derby, GB;
Michael a Macquisten, Derby, GB;
Michael Whiteman, Loughborough, GB;
Anthony J Moran, Nuneaton, GB;
Alistaire S Holt, Derby, GB;
Michael A MacQuisten, Derby, GB;
Michael Whiteman, Loughborough, GB;
Anthony J Moran, Nuneaton, GB;
Rolls-Royce plc, London, GB;
Abstract
A combustor wall of a gas turbine engine is provided with an acoustic damper component. The component has a first metering passage, a first damping chamber, a first damping passage, a second damping chamber and a second damping passage. Air flows through the damper to be ejected into the combustion chamber from the second damping passage at a selected velocity and volumetric flow. The flow being sufficient to damp instabilities from the combustion process.