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:
May. 31, 2016
Filed:
Oct. 07, 2011
Applicants:
LI He, Oxford, GB;
Qiang Zhang, Oxford, GB;
Andrew P Wheeler, Maidenhead, GB;
Nicholas R Atkins, Cambridge, GB;
Inventors:
Li He, Oxford, GB;
Qiang Zhang, Oxford, GB;
Andrew P Wheeler, Maidenhead, GB;
Nicholas R Atkins, Cambridge, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/20 (2006.01);
U.S. Cl.
CPC ...
F01D 5/20 (2013.01); Y02T 50/673 (2013.01);
Abstract
An aerofoil structure for a rotating blade-row in a casing. The aerofoil structure includes a suction side, a pressure side and a tip therebetween. At least a portion of the tip includes a shaped feature provided on a surface of the tip. The shaped feature has a convergent portion orientated to reduce a gap between the tip and the casing in a direction from the pressure side to the suction side of the aerofoil structure.