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. 13, 2010
Filed:
Jan. 03, 2007
Applicants:
Simon Read, Derby, GB;
Peter R Beckford, Derby, GB;
Inventors:
Simon Read, Derby, GB;
Peter R Beckford, Derby, GB;
Assignee:
Rolls-Royce plc, London, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C 11/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
An aerofoilfor a gas turbine engine (, FIG.) comprises a cavity, a cellular materiallocated in the cavityfor stiffening the aerofoil, and a vibration damping mediumlocated in the cavityfor damping the aerofoil. The cellular materialis preferably a metal foam bonded to the inner surfaceof the hollow aerofoil, and the vibration damping mediumis preferably a viscoelastic material. Various methods for fabricating the aerofoilare also described.