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:
Jun. 30, 2026
Filed:
Mar. 30, 2022
Safran Power Units, Toulouse, FR;
Marc Daniel Tunzini, Moissy-Cramayel, FR;
SAFRAN POWER UNITS, Toulouse, FR;
Abstract
A gas turbine of an aircraft includes start-up system configured to drive a shaft of the gas turbine in rotation. The start-up system includes a control system and a brushless asynchronous electric machine and is supplied with a DC voltage. A method for starting the gas turbine includes the steps of converting the DC voltage into a three-phase voltage control system based on a first value representative of a rotational speed of a rotor of the electric machine and on a second value representative of a ratio of a determined target torque of the electric machine, suitable for driving the rotation of a shaft of the gas turbine at a determined speed, to the maximum theoretical torque that the electric machine is able to produce at the determined rotational speed of the rotor.