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:
Nov. 23, 2021
Filed:
May. 14, 2019
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
Michael O Hales, Bristol, GB;
Craig W Bemment, Derby, GB;
Stephane M M Baralon, Derby, GB;
Benjamin J Sellers, Bath, GB;
Christopher Benson, Swindon, GB;
Benedict R Phelps, Derby, GB;
Mark J Wilson, Nottingham, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 3/073 (2006.01); F02C 7/36 (2006.01);
U.S. Cl.
CPC ...
F02C 3/073 (2013.01); F02C 7/36 (2013.01); F05D 2240/30 (2013.01);
Abstract
A gas turbine engine has a cycle operability parameter β in a defined range to achieve improved overall performance, taking into account fan operability and/or bird strike requirements as well as engine efficiency. The defined range of cycle operability parameter β may be particularly beneficial for gas turbine engines in which the fan is driven by a turbine through a gearbox.