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. 23, 2010
Filed:
Nov. 16, 2006
Applicant:
Rodney D. Conrad, Zionsville, IN (US);
Inventor:
Rodney D. Conrad, Zionsville, IN (US);
Assignee:
Rolls-Royce PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
Within gas turbine enginesit is necessary to provide fixed vanes which comprise an aerofoil in the gas flow through the gas turbine engine. These vanes are subject to significant stressing. Therefore it is generally necessary to secure the vane at one endthrough an appropriate bond such as brazing while at another end a friction damping response is achieved. By providing an anti-bonding layer it is possible to prevent a mechanical bond being formed at the friction damping end. Furthermore, a tight fit can be emphasized by residual bonding material remaining after an attempted bonding process upon the anti-bonding layer.