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:
Feb. 16, 2017
Sikorsky Aircraft Corporation, Stratford, CT (US);
Timothy Fred Lauder, Oxford, CT (US);
SIKORSKY AIRCRAFT CORPORATION, Stratford, CT (US);
Abstract
An electric propulsion system for use with a mast defining an axis of rotation and one or more rotor blades which rotate about the axis of rotation, includes a yoke assembly, electric motor, motor support housing, and overrunning clutch. The yoke assembly is rotatable with respect to the mast, and configured to support one or more of the rotor blades. The motor includes a motor-stator and a motor-rotor, and is arranged circumferentially around the mast. The housing circumferentially surrounds the mast and includes a rotatable portion attached to and rotatable with the yoke assembly. The overrunning clutch includes an inner hub rotatable with the motor-rotor, and an outer hub rotatable with the rotatable portion of the housing. The overrunning clutch is configured to transfer torque from the motor to the yoke assembly in a drive mode, and configured to disengage the yoke assembly from the motor in an overrunning mode.