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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 11149649 B1

PDFFull Text
Date of Patent:
Oct. 19, 2021

Filed:

Aug. 17, 2018

Hybrid gas turbine engine system powered warm-up

Applicant:

United Technologies Corporation, Farmington, CT (US);

Inventors:

Neil Terwilliger, Meriden, CT (US);

John P. Virtue, Middletown, CT (US);

Assignee:

RAYTHEON TECHNOLOGIES CORPORATION, Farmington, CT (US);

Attorney:

Cantor Colburn LLP

Primary Examiner:

Alain Chau

Int. Cl.
CPC ...
F02C 7/268 (2006.01); B64D 27/24 (2006.01); B64D 33/00 (2006.01); F02C 9/26 (2006.01); F02C 9/54 (2006.01); F02K 5/00 (2006.01); B64D 27/02 (2006.01); F02C 6/14 (2006.01); B64D 27/10 (2006.01); B64D 31/06 (2006.01);
U.S. Cl.
CPC ...
F02C 7/268 (2013.01); B64D 27/10 (2013.01); B64D 27/24 (2013.01); B64D 31/06 (2013.01); B64D 33/00 (2013.01); F02C 6/14 (2013.01); F02C 9/26 (2013.01); F02C 9/54 (2013.01); F02K 5/00 (2013.01); B64D 2027/026 (2013.01); F05D 2260/85 (2013.01);
Abstract

An aspect includes a hybrid gas turbine engine system of a hybrid electric aircraft. The hybrid gas turbine engine system includes a gas turbine engine, an electric motor operable to perform an electric taxiing of the hybrid electric aircraft, and a controller. The controller is operable to prevent fuel flow to the gas turbine engine during at least a portion of the electric taxiing and monitor for a powered warm-up request during the electric taxiing. A powered warm-up state of the gas turbine engine is initiated based on detecting the powered warm-up request. The powered warm-up state adds heat to one or more components of the gas turbine engine prior to transitioning to a takeoff power state. The gas turbine engine transitions from the powered warm-up state to the takeoff power state after reaching a target temperature of the one or more components in the powered warm-up state.

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