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.

Date of Patent:
Mar. 12, 2024

Filed:

Jul. 12, 2021
Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

Robert Charles Hon, Fort Mitchell, KY (US);

Amid Ansari, Mason, OH (US);

Michael Scott McCambridge, Symmes Township, OH (US);

Thomas Earl Gillingham, Cincinnati, OH (US);

Assignee:

General Electric Company, Schenectady, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 19/02 (2006.01); F01D 21/00 (2006.01); F01D 25/12 (2006.01); F01D 25/34 (2006.01); F02C 7/12 (2006.01); F02C 7/18 (2006.01); F02C 7/268 (2006.01); F02C 7/277 (2006.01);
U.S. Cl.
CPC ...
F01D 19/02 (2013.01); F01D 21/00 (2013.01); F01D 25/12 (2013.01); F01D 25/34 (2013.01); F02C 7/12 (2013.01); F02C 7/18 (2013.01); F02C 7/268 (2013.01); F02C 7/277 (2013.01); F05D 2220/323 (2013.01); F05D 2260/85 (2013.01); F05D 2270/112 (2013.01); F05D 2270/3032 (2013.01); F05D 2270/304 (2013.01); Y02T 50/60 (2013.01);
Abstract

A method of mitigating thermal rotor bow in a rotor assembly of a turbine engine may include performing a plurality of motoring cycles. The plurality of motoring cycles may include receiving feedback on a temperature within a turbine engine in a post-shutdown state, actuating a starter motor when the temperature is greater than a predetermined threshold, operating the starter motor for a motoring time to exhaust some residual heat from the turbine engine, and shutting down the starter motor after the motoring time.


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