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:
Nov. 25, 2025
Filed:
Jun. 28, 2021
Rtx Corporation, Farmington, CT (US);
Michael D. Greenberg, Bloomfield, CT (US);
Lance L. Smith, West Hartford, CT (US);
Dennis P. Cronin, Lebanon, CT (US);
Nancy Poisson, Avon, CT (US);
Christopher D. Ramsey, Glastonbury, CT (US);
Neil Terwilliger, Meriden, CT (US);
RTX CORPORATION, Farmington, CT (US);
Abstract
A hybrid electric engine of an aircraft includes a compressor, a turbine operably connected to the compressor via a variable gear ratio gearbox and a combustor configured to drive the turbine via a flow of combustion products. An electric motor is operably connected to the variable gear ratio rear box and configured to input rotational energy into the gearbox. The input of rotational energy into the gearbox from the electric motor changes a rotational speed of one of the compressor or the turbine relative to the other of the compressor or the turbine.