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:
Oct. 15, 2019
Filed:
Feb. 12, 2016
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventors:
John P. Virtue, Jr., Middletown, CT (US);
Amy R. Grace, Ellington, CT (US);
Parakrama Herath, Avon, CT (US);
Assignee:
UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/26 (2006.01); F02C 7/268 (2006.01); B64F 5/00 (2017.01); B64D 31/06 (2006.01);
U.S. Cl.
CPC ...
F02C 7/268 (2013.01); B64D 31/06 (2013.01); B64F 5/0045 (2013.01); F05D 2270/303 (2013.01); F05D 2270/334 (2013.01);
Abstract
A bowed rotor start mitigation system for a gas turbine engine is provided. The bowed rotor start mitigation system includes a controller operable to receive a vibration input indicative of an actual vibration level of the gas turbine engine and a speed input indicative of a rotor speed of the gas turbine engine. The controller generates a bowed rotor start mitigation request based on comparing the actual vibration level to a modeled vibration level at the rotor speed.