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.

Date of Patent:
Jul. 30, 2019

Filed:

May. 16, 2016
Applicant:

Pratt & Whitney Canada Corp., Longueuil, CA;

Inventors:

George Guglielmin, Toronto, CA;

Joe Lanzino, Meaford, CA;

Enzo Macchia, Kleinburg, CA;

Barry Barnett, Markham, CA;

Andreas Eleftheriou, Woodbridge, CA;

Thomas McDonough, Barrie, CA;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/14 (2006.01); F04D 29/38 (2006.01); B82Y 30/00 (2011.01); C23C 30/00 (2006.01); F01D 5/28 (2006.01); F01D 9/04 (2006.01); F01D 25/16 (2006.01); C23C 4/01 (2016.01); F04D 29/02 (2006.01); F04D 29/32 (2006.01);
U.S. Cl.
CPC ...
F04D 29/388 (2013.01); B82Y 30/00 (2013.01); C23C 4/01 (2016.01); C23C 30/00 (2013.01); F01D 5/147 (2013.01); F01D 5/282 (2013.01); F01D 5/288 (2013.01); F01D 9/041 (2013.01); F01D 25/162 (2013.01); F04D 29/023 (2013.01); F04D 29/325 (2013.01); B22F 2998/00 (2013.01); Y02T 50/672 (2013.01); Y02T 50/673 (2013.01); Y10T 29/49336 (2015.01);
Abstract

A fan blade of a gas turbine engine is disclosed which is composed of an airfoil having a leading edge and a trailing edge, and a root with a platform and a blade fixing for engaging a fan hub. The fan blade is composed of a core substrate selected from the group consisting of composites and polymers, and an entirety of the airfoil and the root of the fan blade has a nanocrystalline metal outer layer thereon which forms an outer surface fully enveloping the fan blade. The nanocrystalline metal layer formed of a nanocrystalline metal coating has an average grain size of between 10 nm and 500 nm, and the nanocrystalline metal outer layer forms a structural element of the fan blade.


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