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:
May. 30, 2017
Filed:
Feb. 12, 2016
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventors:
Jesse W. Clauson, Agawam, MA (US);
Tyler J. Selstad, West Hartford, CT (US);
Assignee:
UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/34 (2006.01); F01D 25/36 (2006.01); F02C 7/277 (2006.01); F01D 21/00 (2006.01);
U.S. Cl.
CPC ...
F01D 25/36 (2013.01); F01D 21/00 (2013.01); F01D 25/34 (2013.01); F02C 7/277 (2013.01); F05D 2220/32 (2013.01); F05D 2260/532 (2013.01); F05D 2270/114 (2013.01);
Abstract
A bowed rotor prevention system for a gas turbine engine includes a bowed rotor prevention motor operable to drive rotation of the gas turbine engine through an engine accessory gearbox. The bowed rotor prevention system also includes a controller operable to engage the bowed rotor prevention motor and drive rotation of the gas turbine engine below an engine starting speed until a bowed rotor prevention threshold condition is met.