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:
Nov. 04, 2019
Filed:
May. 30, 2017
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
Simon Read, Belper, GB;
Bijoysri Khan, Derby, GB;
Assignee:
Rolls-Royce, PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 5/28 (2005.12); F01D 5/14 (2005.12);
U.S. Cl.
CPC ...
F01D 5/282 (2012.12); F01D 5/147 (2012.12); F01D 5/28 (2012.12); Y02T 50/672 (2012.12); Y02T 50/673 (2012.12); Y10T 428/24942 (2015.01);
Abstract
A composite aerofoil, the aerofoil having a leading edge, a trailing edge a pressure side and a suction side and comprising an outer erosion protection layer along one or both of the pressure side or suction side, a structural core having a plurality of resin impregnated plies of unidirectional fibers, and between the outer erosion protection layer and the structural core a woven composite impregnated with a resin having a modulus of elasticitygreaterlowerthan that of the resin impregnating the plies in the structural core.