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. 27, 2024
Filed:
Nov. 22, 2022
General Electric Company, Schenectady, NY (US);
Narayanan Payyoor, Thrissur, IN;
Bhaskar Nanda Mondal, Bengaluru, IN;
GENERAL ELECTRIC COMPANY, Cincinnati, OH (US);
Abstract
A turbomachine engine including an engine core including a high-pressure compressor, which has an exit stage having an exit stage diameter (D), a high-pressure turbine, and a combustion chamber in flow communication with the high-pressure compressor and the high-pressure turbine, a power turbine in flow communication with the high-pressure turbine, and a low-pressure shaft coupled to the power turbine and characterized by a midshaft rating (MSR) between two hundred (ft/sec)and three hundred (ft/sec). The low-pressure shaft has a redline speed between fifty and two hundred fifty feet per second (ft/sec). The turbomachine engine is configured to operate up to the redline speed without passing through a critical speed associated with a first-order bending mode of the low-pressure shaft. The low-pressure shaft has a length (L) defined by an engine core length (L) given by: L=[m*n]*D+CIS.