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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 11326526 B1

PDFFull Text
Date of Patent:
May. 10, 2022

Filed:

Jun. 04, 2020

Deceleration of a gas turbine

Applicant:

Rolls-royce Plc, London, GB;

Inventor:

Caroline L Turner, Derby, GB;

Assignee:

ROLLS-ROYCE plc, London, GB;

Attorney:

Oliff PLC

Primary Examiner:

Alain Chau

Int. Cl.
CPC ...
F02C 9/26 (2006.01); F02C 7/32 (2006.01); F02C 9/56 (2006.01); F02C 9/32 (2006.01); F02C 9/28 (2006.01); F02C 9/48 (2006.01); F01D 15/10 (2006.01); B64D 15/00 (2006.01); F02C 7/232 (2006.01);
U.S. Cl.
CPC ...
F02C 9/263 (2013.01); B64D 15/00 (2013.01); F01D 15/10 (2013.01); F02C 7/232 (2013.01); F02C 7/32 (2013.01); F02C 9/28 (2013.01); F02C 9/32 (2013.01); F02C 9/48 (2013.01); F02C 9/56 (2013.01); F05D 2220/323 (2013.01); F05D 2220/76 (2013.01); F05D 2260/42 (2013.01); F05D 2270/02 (2013.01); F05D 2270/023 (2013.01); F05D 2270/092 (2013.01); F05D 2270/304 (2013.01); F05D 2270/3061 (2013.01);
Abstract

A gas turbine engine for an aircraft comprises a high-pressure (HP) spool comprising an HP compressor and a first electric machine driven by an HP turbine; a low-pressure (LP) spool comprising an LP compressor and a second electric machine driven by an LP turbine; a combustion system comprising a fuel metering unit; and an engine controller configured to, in response to a change of a power lever angle setting indicative of a deceleration event, reduce fuel flow to the combustion system by the fuel metering unit, and to operate the first electric machine in a generator mode to reduce the HP spool rotational speed and engine core mass flow.

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Quick Actions:

Turner, Caroline. (2022). Deceleration of a gas turbine (U.S. Patent No. 11326526). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11326526

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

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