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:
Apr. 23, 2024
Filed:
Sep. 09, 2022
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
Peter Swann, Derby, GB;
Kevin M Britchford, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 9/42 (2006.01); F02C 9/28 (2006.01); B64D 27/02 (2006.01);
U.S. Cl.
CPC ...
F02C 9/42 (2013.01); F02C 9/28 (2013.01); B64D 2027/026 (2013.01); F05D 2220/323 (2013.01); F05D 2270/051 (2013.01); F05D 2270/053 (2013.01); F05D 2270/333 (2013.01); F05D 2270/335 (2013.01); F05D 2270/71 (2013.01);
Abstract
An aircraft propulsion system comprises first and second thrust producing gas turbine engines. The system comprises a controller configured to determine a required overall propulsion system thrust level, and determine an engine core power level contribution from each aircraft gas turbine engine such that the overall propulsion system produces a minimum overall noise level and meets the required overall propulsion system thrust level. In meeting the minimum overall noise level, at least the first and second gas turbine engines are operated at different engine core power settings.