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. 26, 2024
Filed:
Sep. 22, 2022
The United States of America As Represented BY the Secretary of the Navy, Newport, RI (US);
Thomas E Hansen, Newport, RI (US);
Abstract
An axial motor assembly is provided with fluidic electrostatic actuators mounted between an end plate and a wobble plate. A computer-implemented drive subsystem executes instructions to create voltage delivery patterns through a power supply to operate the actuators to create nutational motion in the wobble plate. A cam transfers the nutational motion into rotational motion and, in turn, into shaft power. The actuators can be linearly-contractile shelled electrostatic actuators, linearly expansive donut electrostatic actuators and multi-directionally expansive segmented donut electrostatic actuators. Drive method steps include initializing drive variables; determining, upon detecting a control command, a respective deformation target for each actuator; determining, based on the drive variables and the deformation targets, the voltage delivery pattern; and throttling the power supply to drive the actuators using the voltage delivery pattern. Upon detecting a response change in axial motor operation, drive variables can be dynamically recalibrated.