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:
Apr. 27, 2021
Filed:
Oct. 11, 2019
Rolls-royce Corporation, Indianapolis, IN (US);
Rolls-royce North American Technologies, Inc., Indianapolis, IN (US);
Rolls-royce Plc, London, GB;
Michael James Armstrong, Avon, IN (US);
Mark Jon Blackwelder, Plainfield, IN (US);
David John Howard Eames, Zion Crossroad, VA (US);
Ellis Fui Hen Chong, Derby, GB;
Rolls-Royce Corporation, Indianapolis, IN (US);
Rolls-Royce North American Technologies, Inc., Indianapolis, IN (US);
Rolls-Royce PLC, London, GB;
Abstract
An alternating current type electric propulsion system is described that includes an AC generator and a plurality of propulsors electrically coupled to the AC generator. A first propulsor from the plurality of propulsors includes a first motor that drives a first fan of the first propulsor at a first speed. A second propulsor from the plurality of propulsors comprises a second motor that drives a second fan of the second propulsor at a second speed that is different than the first speed.