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. 04, 2006
Filed:
Jun. 29, 2004
Applicant:
Christopher A. Powell, Cardiff, GB;
Inventor:
Christopher A. Powell, Cardiff, GB;
Assignee:
Rolls-Royce plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A component such as a blade for use in a gas turbine engine comprises a bodyformed from outer panelsdefining an internal cavity. A damping elementis provided in the cavityand is secured at one end between the panelsat one end of the body, for example adjacent the root of the blade. Damping material fills the cavityand so extends between the damping elementand the panels. Vibration induced in the blade causes relative movement between the bodyof the blade and the damping element, causing energy loss in the damping material which damps the vibration. The componentsmay be secured by a diffusion bonding process.