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:
Mar. 31, 2020
Filed:
Jan. 10, 2017
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
Arthur L Rowe, Derby, GB;
Alexander MacDonald, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 9/28 (2006.01); F02C 9/46 (2006.01);
U.S. Cl.
CPC ...
F02C 9/28 (2013.01); F02C 9/46 (2013.01); F05B 2270/3013 (2013.01); F05D 2270/101 (2013.01); F05D 2270/301 (2013.01);
Abstract
A method () of controlling fuel flow in a gas turbine engine. First, detect a surge condition. Set fuel flow demand (W) proportional to compressor discharge pressure (P). Detect actual fuel flow (W). Then apply an enhanced schedule () for fuel flow demand (W) while fuel flow demand (W) is less than a predefined proportion (k) of actual fuel flow (W). Also a gas turbine engine (), fuel flow system () and fuel flow control system () each implementing the method ().