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:
Oct. 20, 2009
Filed:
Oct. 13, 2005
David Steele, Bristol, GB;
David Steele, Bristol, GB;
Rolls-Royce PLC, London, GB;
Abstract
A combustion device, such as an afterburnerfor a gas turbine engine, comprises primary and secondary fuel delivery means. Pressure fluctuations in the afterburnerare damped by reducing the supply of fuel through the primary fuel delivery meansduring pressure peaks. This is achieved by means of a spill valve, controlled by a controllerin response to pressure in the afterburneras sensed by a transducer. The spill valvediverts a proportion of the fuel to the secondary fuel delivery means. The secondary fuel delivery meansis positioned upstream of the primary fuel delivery meansby a distance X, such that the secondary fuel delivery means serves to supply additional fuel to the combustion zoneduring pressure troughs.