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:
Jun. 13, 2023
Filed:
Mar. 07, 2022
Applicant:
Raytheon Technologies Corporation, Farmington, CT (US);
Inventor:
Matthew R. Feulner, West Hartford, CT (US);
Assignee:
Raytheon Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 21/00 (2006.01); F01D 5/12 (2006.01); F01D 9/04 (2006.01); B64D 27/10 (2006.01); F01D 11/20 (2006.01); F01D 11/14 (2006.01); F02C 9/00 (2006.01); F02K 3/06 (2006.01);
U.S. Cl.
CPC ...
F01D 11/20 (2013.01); F02K 3/06 (2013.01); F05D 2220/323 (2013.01); F05D 2240/307 (2013.01); F05D 2240/55 (2013.01); F05D 2260/80 (2013.01); F05D 2270/20 (2013.01); F05D 2270/42 (2013.01);
Abstract
A system for controlling blade tip clearances in a gas turbine engine may comprise an active clearance control system and a controller in operable communication with the active clearance control system. The controller may be configured to identify a cruise condition, reduce a thrust limit of the gas turbine engine to a de-rated maximum climb thrust, determine a first target tip clearance based on the de-rated maximum climb thrust, and send a command signal correlating to the first target tip clearance to the active clearance control system.