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.:
Date of Patent:
Sep. 15, 2026
Filed:
Jan. 21, 2025
Applicant:
Rtx Corporation, Farmington, CT (US);
Inventors:
Neil Terwilliger, Cheshire, CT (US);
Daniel Bernard Kupratis, Wallingford, CT (US);
Michael Romero, Manchester, CT (US);
Assignee:
RTX Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 15/10 (2006.01); F02C 7/268 (2006.01); F02C 7/277 (2006.01); F02C 9/26 (2006.01); B64D 27/02 (2006.01);
U.S. Cl.
CPC ...
F01D 15/10 (2013.01); F02C 7/268 (2013.01); F02C 7/277 (2013.01); F02C 9/26 (2013.01); B64D 27/026 (2024.01); F05D 2220/50 (2013.01); F05D 2220/76 (2013.01);
Abstract
A method of operating an aircraft hybrid gas turbofan during an idle mode of operation includes reducing a fuel flow to a primary gas turbine engine and boosting a high spool of the primary gas turbine engine using a secondary gas turbine engine via a first power linkage connecting the primary and secondary gas turbine engines, such that a net fuel reduction is achieved. The net fuel reduction accounts for fuel flow to the primary gas turbine engine and fuel flow to the secondary gas turbine engine.