Axial motor using wobble plate and electrostatic actuators

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United States of America

PATENT NO 12155321
SERIAL NO

17950318

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Importance

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY875 N RANDOLPH ST OFFICE OF NAVAL RESEARCH ROOM 522 ATTN CODE OOCCIP ARLINGTON VA 22203-1995

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hansen, Thomas E Newport, US 7 37

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