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:
Jul. 29, 2025
Filed:
Aug. 01, 2024
Applicant:
Rtx Corporation, Farmington, CT (US);
Inventor:
David Christopher Kiely, Easthampton, MA (US);
Assignee:
RTX Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/36 (2006.01); F02C 3/107 (2006.01); F02C 7/22 (2006.01); F02C 7/236 (2006.01); F02C 7/32 (2006.01); F02C 9/28 (2006.01); F02C 9/30 (2006.01);
U.S. Cl.
CPC ...
F02C 7/36 (2013.01); F02C 7/32 (2013.01); F02C 9/28 (2013.01); F02C 3/107 (2013.01); F02C 7/22 (2013.01); F02C 7/236 (2013.01); F02C 9/30 (2013.01); F05D 2220/76 (2013.01); F05D 2220/764 (2013.01); F05D 2240/35 (2013.01);
Abstract
A retrofit gas turbine engine includes a compressor, a combustor and a turbine. A tie shaft is connected to rotate by the turbine, and provide rotational drive into a gearbox. At least one fuel pump is connected to be driven by the gearbox. The at least one fuel pump delivers fuel downstream toward the combustor, and also has a return line. An added accessory turbine is positioned on the return line, and drives an added accessory which has been retrofit added to an existing gas turbine engine. A method is also disclosed.