Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1993-09-03
1995-03-21
Stephan, Steven L.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310 12, 318135, H01L 4108, H02K 106
Patent
active
053999304
ABSTRACT:
This invention is for magnetic actuators which are composed of individually controlled layers. Each layer comprises a stationary sheet 34, a movable sheet 30 and a roller 40 between the sheets. Each layer may either have ribs 32 or sheet portions having conductors, remanent portions or permeable portions which apply a magnetic force against the roller to move the sheets. The magnetic force may be between a current carrying roller and a current carrying rib or sheet portion, a current carrying roller and a remanent rib or sheet portion, a current carrying roller and a permeable rib or sheet portion, a magnetic roller and a current carrying rib or sheet portion, or a permeable roller and a current carrying rib or sheet portion. The sheets in each layer may be moved in parallel or normal directions. When the layers are stacked, actuators may be made. The actuators can be controlled in pairs or larger groups to position and move objects and motor shafts. Thus motors generators and actuators can be made. By using Fourier mechanical summing of the layers smooth walking motion of the actuators can move and position objects and drive motor shafts with minimal frictional loss of energy and without the use of bearings or lubricants.
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Technical Reference EMDUSM-8703 "Ultrasonic Motor", Panasonic Industrial Co., Electric Motor Div. of Matsushita Industrial Co. Ltd., Osaka Japan.
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Field Harry B.
Hamann H. F.
Haszko D. R.
Kahm Steven E.
Rockwell International Corporation
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