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:
Feb. 10, 2026
Filed:
Mar. 08, 2024
General Electric Company, Schenectady, NY (US);
Kevin Richard Graziano, Liberty Township, OH (US);
Stefan Joseph Cafaro, Chapel Hill, NC (US);
General Electric Company, Schenectady, NY (US);
Abstract
A propulsion system includes a gas turbine engine includes a low speed spool and a high speed spool. The low speed spool includes a low pressure (LP) compressor coupled to a LP turbine via a LP shaft. The high speed spool comprising includes a high pressure (HP) compressor coupled to a HP turbine via a HP shaft. A first starter motor coupled to the HP shaft and configured to provide motive power to spin the HP shaft to start the gas turbine engine. A second starter motor coupled to the LP shaft and configured to provide torque to the LP shaft. A controller configured to operate on the second starter motor to provide the torque to the LP shaft based on a base LP shaft torque schedule.