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. 03, 2020
Filed:
Feb. 12, 2018
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
Mark J. Wilson, Nottingham, GB;
Gabriel Gonzalez-Gutierrez, Derby, GB;
Marco Barale, Derby, GB;
Benedict Phelps, Derby, GB;
Kashmir S. Johal, Derby, GB;
Nigel H S Smith, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/14 (2006.01); F01D 5/16 (2006.01); F02K 3/06 (2006.01);
U.S. Cl.
CPC ...
F01D 5/141 (2013.01); F01D 5/16 (2013.01); F02K 3/06 (2013.01); F05D 2240/301 (2013.01); F05D 2240/303 (2013.01); F05D 2240/80 (2013.01); Y02T 50/672 (2013.01); Y02T 50/673 (2013.01);
Abstract
A fan blade is provided with an aerofoil portion for which, for cross-sections through the aerofoil portion at radii between 15% and 25% of the blade span from the root radius, the average leading edge thickness is greater than the leading edge thickness at the tip. The geometry of the fan blade may result in a lower susceptibility to flutter.