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:
Aug. 11, 2026
Filed:
Apr. 21, 2023
Raytheon Technologies Corporation, Farmington, CT (US);
Murat Yazici, Glastonbury, CT (US);
Marc J. Muldoon, Marlborough, CT (US);
RTX CORPORATION, Farmington, CT (US);
Abstract
A gas turbine engine is provided that includes fan, compressor, combustor, and turbine sections, an outer casing, an outside core annular region, and a fan air circulation system. The engine has a core gas path that is disposed radially inside of the outer casing. A fan bypass air duct is defined by inner and outer radial flow path boundaries. The outside core annular region is disposed radially between the outer casing and the inner radial boundary flow path boundary. The fan air circulation system has a plurality of inlet ports, valves, and exit ports. The fan air circulation system is configured such that a respective inlet port is in fluid communication with a respective valve, and the respective valve is in fluid communication with a respective exit port. Each valve is selectively controllable to control fan bypass air flow therethrough and into the outside core annular region.