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:
Jan. 24, 2023
Filed:
Jul. 20, 2021
Applicant:
Rolls-royce North American Technologies Inc., Indianapolis, IN (US);
Inventors:
Christopher Argote, Danville, IN (US);
Aaron King, Greenwood, IN (US);
Assignee:
Rolls-Royce North American Technologies Inc., Indianapolis, IN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 21/00 (2006.01); F01D 17/16 (2006.01);
U.S. Cl.
CPC ...
F01D 21/003 (2013.01); F01D 17/162 (2013.01); F05D 2260/80 (2013.01); F05D 2260/83 (2013.01); F05D 2270/301 (2013.01); F05D 2270/303 (2013.01); F05D 2270/3061 (2013.01);
Abstract
A method of maintaining at least one gas turbine engine includes monitoring a compressor of the gas turbine engine. The compressor includes a compressor case at least partially defining a flow path, a plurality of stages and a vane actuator system configured to move at least one of the stages. The vane actuator system includes a vane mover having one or more slots formed therein and configured to actuate the at least one stage. The vane mover may be replaced after the gas turbine engine has experienced engine degradation.