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:
Sep. 28, 2021
Filed:
Oct. 16, 2018
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
Ewan F Thompson, Derby, GB;
Elliot Carty, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 11/00 (2006.01); F01D 5/22 (2006.01); F01D 5/30 (2006.01); B29C 70/68 (2006.01); F02K 3/06 (2006.01);
U.S. Cl.
CPC ...
F01D 5/225 (2013.01); B29C 70/68 (2013.01); F01D 5/3007 (2013.01); F01D 11/008 (2013.01); F02K 3/06 (2013.01); F05D 2220/36 (2013.01); F05D 2240/57 (2013.01); F05D 2300/44 (2013.01); F05D 2300/603 (2013.01);
Abstract
An annulus filler for mounting to a rotor disc in a gas turbine engine includes a body portion having a top wall arranged to bridge the gap between two adjacent blades extending from the rotor disc and to define an air flow surface for air passing between the blades; and a separately formed rear interface portion, fixed to the body portion adjacent to a down-flow end of the top wall. The rear interface portion forms a lip projecting below the top wall.