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. 24, 2024
Filed:
Jun. 20, 2023
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
Christopher P Madden, Derby, GB;
David M Beaven, Nottingham, GB;
Craig W Bemment, Derby, GB;
Paul W Ferra, Derby, GB;
Barani P Gunasekaran, Derby, GB;
Benjamin J Keeler, Chesterfield, GB;
Peter Swann, Derby, GB;
Martin K Yates, Derby, GB;
Assignee:
ROLLS-ROYCE PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C 7/262 (2006.01); F23R 3/34 (2006.01); F02C 7/22 (2006.01); F02C 7/264 (2006.01); F02C 9/46 (2006.01); F23R 3/28 (2006.01);
U.S. Cl.
CPC ...
F02C 7/262 (2013.01); F23R 3/343 (2013.01); F02C 7/222 (2013.01); F02C 7/264 (2013.01); F02C 9/46 (2013.01); F23R 3/28 (2013.01);
Abstract
There is provided a method of operating a gas turbine engine. The gas turbine engine comprises a staged combustor comprising an arrangement of fuel spray nozzles in which fuel flow is biased to a subset of the nozzles adjacent one or more ignitors during a re-light procedure. The method comprises providing fuel to the combustor having a calorific value of at least 43.5 MJ/kg. Also disclosed is a gas turbine engine.