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:
Dec. 01, 2020
Filed:
Feb. 19, 2018
Applicant:
Rolls-royce Plc, London, GB;
Inventor:
Gabriel Gonzalez-Gutierrez, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 5/14 (2006.01); F01D 5/16 (2006.01); F01D 5/28 (2006.01); F04D 29/66 (2006.01); F04D 29/32 (2006.01); F01D 5/10 (2006.01); F02C 3/04 (2006.01);
U.S. Cl.
CPC ...
F01D 5/16 (2013.01); F01D 5/10 (2013.01); F01D 5/147 (2013.01); F01D 5/282 (2013.01); F01D 5/288 (2013.01); F02C 3/04 (2013.01); F04D 29/324 (2013.01); F04D 29/666 (2013.01); F04D 29/668 (2013.01); F05D 2220/32 (2013.01); F05D 2220/36 (2013.01); F05D 2240/303 (2013.01); F05D 2260/96 (2013.01); F05D 2260/961 (2013.01); F05D 2300/133 (2013.01); Y02T 50/672 (2013.01); Y02T 50/673 (2013.01);
Abstract
A fan for a gas turbine engine, the fan comprising a first set of fan blades and a second set of fan blades arranged circumferentially around a hub. Each of the fan blades of the first and second set comprises an organic matrix composite body and a leading edge member connected to the body. The leading edge member of the first set of fan blades has a mass less than the leading edge member of the second set of fan blades.