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:
Apr. 28, 2015
Filed:
Feb. 17, 2012
Applicant:
Paul Mason, Derby, GB;
Inventor:
Paul Mason, Derby, GB;
Assignee:
Rolls-Royce plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/32 (2006.01); F01D 11/00 (2006.01);
U.S. Cl.
CPC ...
F04D 29/322 (2013.01); F01D 11/008 (2013.01);
Abstract
A rotor, such as a fan of a gas turbine engine, comprises bladesand annulus fillerswhich extend between adjacent blades. Gapsbetween each bladeand the adjacent annulus fillersare sealed by sealing elements. The sealing elementsfit closely around the profile of the bladeand have annulus filler sealing surfacesfor sealing contact with the annulus fillers. The sealing elementshave low-friction blade sealing surfacesso that, when the fan is rotating, centrifugal loading displaces the sealing elementsradially outwardly so that the annulus filler sealing surfacemake sealing contact with the annulus fillers