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:
Jun. 14, 2022
Filed:
Jun. 21, 2021
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
Benedict R. Phelps, Derby, GB;
Stephane M M Baralon, Derby, GB;
Mark J. Wilson, Kirby-in-Ashfield, GB;
Assignee:
ROLLS-ROYCE PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/14 (2006.01); F02K 3/06 (2006.01);
U.S. Cl.
CPC ...
F01D 5/141 (2013.01); F02K 3/06 (2013.01); F05D 2220/36 (2013.01); F05D 2240/301 (2013.01); F05D 2240/303 (2013.01); F05D 2240/306 (2013.01); F05D 2250/70 (2013.01);
Abstract
A fan blade for a gas turbine engine has a covered passage. A cross section through the fan blade at a point along the blade span is defined as having particular change in angle (α3−α1) of the camber line between the leading edge and the trailing edge and/or between the leading edge and the point on the camber line that corresponds to the start of the covered passage.