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:
Jan. 15, 2013
Filed:
Jul. 10, 2009
Applicants:
Roderick M. Townes, Derby, GB;
Caner H. Helvaci, Coventry, GB;
Adrian J. Webster, Banbridge, IE;
Inventors:
Assignee:
Rolls-Royce, PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A turbine blade damper arrangement in which a damper is positioned against the undersides of the platforms of adjacent turbine blades. In operation, the damper is centrifugally urged into engagement with the blade platforms to provide damping of relative movement between the blades. The damper and platform surfaces that it engages are of part-cylindrical configuration in order to minimize gas leakage paths between the damper and blade platforms.