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:
Jan. 27, 2026
Filed:
Aug. 11, 2023
Pratt & Whitney Canada Corp., Longueuil, CA;
Louis Duranleau-Hendrickx, Montreal, CA;
Pratt & Whitney Canada Corp., Longueuil, CA;
Abstract
An assembly for an aircraft engine includes a rotational assembly, a starter, and a controller. The rotational assembly includes at least one rotor. The starter is coupled with the rotational assembly. The starter is configured to selectively drive rotation of the rotational assembly. The controller is configured to determine an acceleration threshold for a starter-assist only phase of an engine start sequence for the aircraft engine using a measured engine oil temperature for the aircraft engine, measure an acceleration of the rotational assembly during the starter-assist only phase, and identify a presence or an absence of insufficient starter acceleration for the starter-assist only phase by comparing the measured acceleration to the acceleration threshold. The presence of the insufficient starter acceleration is identified when the measured acceleration is less than the acceleration threshold. The absence of the insufficient starter acceleration is identified when the measured acceleration is greater than the acceleration threshold.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile