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:
Jul. 27, 2021
Filed:
Nov. 27, 2018
The Boeing Company, Chicago, IL (US);
Kevin Brown, Kent, WA (US);
Christopher Hodges, Maple Valley, WA (US);
The Boeing Company, Chicago, IL (US);
Abstract
Disclosed herein are apparatus, assemblies, and methods for mitigating thermal bow in the rotor of an engine at start-up. One apparatus includes a control module that facilitates operating the rotor prior to starting the engine and an acceleration module that facilitates accelerating the rotor to at least a threshold speed prior to starting the engine. An assembly includes a start-up device coupleable to the rotor and configured to start the rotor and a start-up module coupled to the start-up device in which the start-up device and the start-up module are configured to coordinate operations to accelerate the rotor to at least a threshold speed prior to starting the aircraft engine. One method includes transmitting a control signal to control the rotor prior to starting the engine and commanding the start-up device to accelerate the rotor to at least a threshold speed prior to starting the engine.