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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.:

US 12790983 B1

PDFFull Text
Date of Patent:
Nov. 10, 2026

Filed:

Nov. 16, 2022

Starting gas turbine engines

Applicant:

Rolls-royce Plc, London, GB;

Inventors:

Gareth E Moore, Nottingham, GB;

Paul R Davies, Bristol, GB;

Stephen M Husband, Derby, GB;

David R Trainer, Derby, GB;

David P Scothern, Derby, GB;

Luke George, Derby, GB;

Douglas M M Herbert, Derby, GB;

Assignee:

ROLLS-ROYCE plc, London, GB;

Attorney:

Oliff PLC

Primary Examiner:

Gerald L Sung

Int. Cl.
CPC ...
F02C 7/268 (2006.01); B64D 27/33 (2024.01); B64D 31/06 (2006.01); B64D 31/18 (2024.01); B64D 41/00 (2006.01); F01D 15/10 (2006.01);
U.S. Cl.
CPC ...
F02C 7/268 (2013.01); B64D 27/33 (2024.01); B64D 31/06 (2013.01); B64D 31/18 (2024.01); B64D 2041/002 (2013.01); B64D 2221/00 (2013.01); F01D 15/10 (2013.01); F05D 2220/323 (2013.01); F05D 2220/76 (2013.01); F05D 2260/85 (2013.01);
Abstract

Multi-engine aircraft power and propulsion systems and methods of starting the engines of multi-engine aircraft disclosed, including supplying electrical power from an electrical power source to electric machines of the a first gas turbine engine and operating electric machines as motors to drive rotation of spools of the first gas turbine engine; starting the first gas turbine engine by lighting combustion equipment of the first gas turbine engine; operating the electric machines of the first gas turbine engine as generators to extract mechanical power and generate electrical power from spools of the first gas turbine engine; transferring the electrical power to electric machines of a second gas turbine engine and operating the electric machines as motors to drive rotation of spools of the second gas turbine engine; and starting the second gas turbine engine by lighting combustion equipment of the second gas turbine engine.

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Moore, Gareth. (2026). Starting gas turbine engines (U.S. Patent No. 12790983). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12790983

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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