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:
Jul. 28, 2020
Filed:
Feb. 16, 2018
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
Antonios Kalochairetis, Derby, GB;
Gabriel Gonzalez-Gutierrez, Derby, GB;
Assignee:
Rolls-Royce plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/34 (2006.01); F04D 29/32 (2006.01); F02K 3/06 (2006.01); F01D 5/10 (2006.01); F01D 5/30 (2006.01); F01D 5/16 (2006.01); F01D 5/32 (2006.01); F04D 29/66 (2006.01);
U.S. Cl.
CPC ...
F04D 29/34 (2013.01); F01D 5/10 (2013.01); F01D 5/16 (2013.01); F01D 5/3007 (2013.01); F01D 5/323 (2013.01); F01D 5/326 (2013.01); F02K 3/06 (2013.01); F04D 29/327 (2013.01); F04D 29/666 (2013.01); F04D 29/668 (2013.01); F05D 2220/32 (2013.01); F05D 2220/36 (2013.01); F05D 2240/90 (2013.01); F05D 2260/30 (2013.01); F05D 2260/96 (2013.01); F05D 2260/961 (2013.01);
Abstract
A fan for a gas turbine engine, the fan comprising a first set of fan blades, each fan blade comprising a root and an axial retention feature provided on the root at a first position, and a second set of fan blades, each fan blade comprising a root and an axial retention feature provided on the root at a second position. Relative to the respective blade on which the respective retention feature is provided, the first position is different to the second position.