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:
Sep. 29, 2020
Filed:
Jun. 20, 2016
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventors:
Jesse W. Clauson, Agawam, MA (US);
Frederick M. Schwarz, Glastonbury, CT (US);
Assignee:
RAYTHEON TECHNOLOGIES CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/36 (2006.01); F01D 1/14 (2006.01); F01D 25/12 (2006.01); F02C 7/275 (2006.01); F01D 21/00 (2006.01); F01D 21/06 (2006.01); F01D 25/34 (2006.01); F02C 9/00 (2006.01); F01D 21/14 (2006.01);
U.S. Cl.
CPC ...
F01D 25/36 (2013.01); F01D 21/00 (2013.01); F01D 21/06 (2013.01); F01D 21/14 (2013.01); F01D 25/12 (2013.01); F01D 25/34 (2013.01); F02C 7/275 (2013.01); F02C 9/00 (2013.01); F05D 2270/114 (2013.01); F05D 2270/303 (2013.01); F05D 2270/44 (2013.01); F05D 2270/52 (2013.01); Y02T 50/671 (2013.01);
Abstract
A bowed rotor prevention system for a gas turbine engine includes a core turning motor operable to drive rotation of an engine core of the gas turbine engine. The bowed rotor prevention system also includes a full authority digital engine control (FADEC) that controls operation of the gas turbine engine in a full-power mode and controls operation of the core turning motor to drive rotation of the engine core using a reduced power draw when the FADEC is partially depowered in a low-power bowed rotor prevention mode.