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:
Dec. 17, 2019
Filed:
Feb. 12, 2016
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventors:
William G. Sheridan, Southington, CT (US);
David Allen Stachowiak, Manchester, CT (US);
Assignee:
UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/26 (2006.01); F02C 7/32 (2006.01); F01D 25/36 (2006.01); F02C 7/268 (2006.01); F01D 21/00 (2006.01); F02C 7/275 (2006.01); F02C 9/00 (2006.01); H02J 7/00 (2006.01); H02J 7/34 (2006.01);
U.S. Cl.
CPC ...
F02C 7/268 (2013.01); F01D 21/00 (2013.01); F01D 25/36 (2013.01); F02C 7/275 (2013.01); F02C 7/32 (2013.01); F02C 9/00 (2013.01); H02J 7/0068 (2013.01); F05D 2220/323 (2013.01); F05D 2260/20 (2013.01); F05D 2260/40311 (2013.01); F05D 2260/85 (2013.01); F05D 2260/96 (2013.01); F05D 2270/114 (2013.01); F05D 2270/54 (2013.01); H02J 7/345 (2013.01); Y02T 50/676 (2013.01);
Abstract
A bowed rotor prevention system for a gas turbine engine of an aircraft is provided. The bowed rotor prevention system includes a gear train and a bowed rotor prevention motor operable to drive rotation of a starting spool of the gas turbine engine through the gear train at a substantially constant speed upon engine shutdown until an energy storage source is depleted.