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:
Jan. 03, 2023

Filed:

Mar. 10, 2021
Applicant:

Rolls-royce Plc, London, GB;

Inventors:

Richard Harwood, Derby, GB;

Kalyani G. Menon, Derby, GB;

Joseph Palmer, Derby, GB;

Ivan Popovic, Derby, GB;

Assignee:

ROLLS-ROYCE plc, London, GB;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 23/14 (2006.01); H02P 5/74 (2006.01); B64D 27/24 (2006.01); B63H 21/20 (2006.01); B61C 5/00 (2006.01); B63H 21/17 (2006.01); B64D 27/02 (2006.01); H02J 7/34 (2006.01); H02J 3/02 (2006.01); H02J 50/10 (2016.01); H02J 3/00 (2006.01); H02J 3/46 (2006.01); B64D 27/10 (2006.01);
U.S. Cl.
CPC ...
B64D 27/24 (2013.01); B61C 5/00 (2013.01); B63H 21/17 (2013.01); B63H 21/20 (2013.01); B64D 27/02 (2013.01); H02J 3/007 (2020.01); H02J 3/02 (2013.01); H02J 3/472 (2020.01); H02J 7/34 (2013.01); H02J 50/10 (2016.02); H02P 5/74 (2013.01); B64D 27/10 (2013.01); B64D 2027/026 (2013.01); H02J 2310/42 (2020.01); H02J 2310/44 (2020.01); Y02T 30/00 (2013.01); Y02T 50/40 (2013.01); Y02T 50/60 (2013.01); Y02T 70/50 (2013.01); Y02T 70/5236 (2013.01); Y02T 90/40 (2013.01);
Abstract

An aircraft propulsion system includes at least first and second electrical generators, each being configured to provide electrical power to a respective first and second AC electrical network. The system further comprises at least first and second AC electrical motors directly electrically coupled to a respective AC network and coupled to a respective propulsor, and a DC electrical network electrically coupled to the first and second AC networks via respective first and second AC to DC converters, and to a further electrical motor, the further electrical motor being coupled to a propulsor.


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