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. 23, 2019
Filed:
Aug. 31, 2017
Applicant:
Rolls-royce Plc, London, GB;
Inventor:
Matthew Moxon, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 11/24 (2006.01); F04D 27/02 (2006.01); F04D 27/00 (2006.01); F01D 17/14 (2006.01);
U.S. Cl.
CPC ...
F01D 11/24 (2013.01); F04D 27/001 (2013.01); F04D 27/002 (2013.01); F04D 27/0246 (2013.01); F01D 17/145 (2013.01); F05D 2220/323 (2013.01); F05D 2240/307 (2013.01); F05D 2260/82 (2013.01); F05D 2270/11 (2013.01); F05D 2270/30 (2013.01);
Abstract
A method of controlling a rotor tip clearance in a gas turbine engine (). The method comprises determining an engine or component remaining useful life T, and controlling a tip clearance control arrangement () to maintain a rotor tip clearance () at a target tip clearance D. The target tip clearance Dis determined in accordance with a function of remaining engine life T.