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:
Sep. 05, 2017
Filed:
Mar. 09, 2015
Applicant:
Rolls-royce Plc, London, GB;
Inventor:
Adam M Bagnall, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/52 (2006.01); F04D 29/08 (2006.01); F04D 29/32 (2006.01); F04D 29/38 (2006.01); B24B 19/14 (2006.01); F01D 11/12 (2006.01); F01D 21/04 (2006.01);
U.S. Cl.
CPC ...
F04D 29/526 (2013.01); B24B 19/14 (2013.01); F01D 11/122 (2013.01); F04D 29/083 (2013.01); F04D 29/325 (2013.01); F04D 29/38 (2013.01); F01D 21/045 (2013.01); F05D 2220/36 (2013.01);
Abstract
A fan casing for fitment around an array of radially extending fan blades of a gas turbine engine. The fan casing includes an annular casing element; and an annular fan track liner positioned radially inward of the annular casing element. The fan track liner includes an abradable layer and an abrasive layer, the abrasive layer being positioned radially inward of the abradable layer and proximal, in use, to the fan blades.