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:
Jul. 08, 2025

Filed:

May. 23, 2024
Applicant:

Rolls-royce Plc, London, GB;

Inventors:

David R Trainer, Derby, GB;

Mark Sweet, Chesterfield, GB;

Matthew S Cartwright, Derby, GB;

Assignee:

ROLLS-ROYCE PLC, London, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/268 (2006.01);
U.S. Cl.
CPC ...
F02C 7/268 (2013.01); F05D 2260/85 (2013.01); F05D 2270/52 (2013.01);
Abstract

Aircraft power and propulsion systems and methods thereof; an aircraft power and propulsion system includes: a gas turbine engine having first and second spools; one or more electrical networks; a first electrical machine joined with the first spool; a second electrical machine joined with the second spool; a first power converter having first and second sides; a second power converter having first and second sides; and a controllable switching arrangement in which a connection to the first side of the second power converter is switchable between: a winding of the second electrical machine, or the winding of the first electrical machine.


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