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:
Mar. 03, 2020
Filed:
Jan. 26, 2016
Sikorsky Aircraft Corporation, Stratford, CT (US);
James Orbon, New Haven, CT (US);
SIKORSKY AIRCRAFT CORPORATION, Stratford, CT (US);
Abstract
An aircraft is provided and includes a non-rotating frame, an engine disposed in the non-rotating frame, a rotating frame, which is drivable by the engine to rotate relative to the non-rotating frame to generate lift and thrust, the rotating frame including a hub and rotor blades extending outwardly from the hub, an actuation system including electro-mechanical actuators (EMAs) respectively disposed in the rotating frame between the hub and the rotor blades, each EMA including a rotary inductive device, a gear train associated with each EMA and the corresponding rotary inductive device to convert linear displacements of a piston responsive to rotor blade lead/lag into rotation of the rotary inductive device and a controller that controls the rotary inductive device to operate, in a first mode, as a motor which drives the gear train, and, in a second mode, as a generator which is driven by the gear train.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile