Electrostriction motor

Details Electrostriction motor Electrostriction motor

1987-08-07

1988-10-18

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310328, 310359, H01L 4108

Patent

active

047790199

ABSTRACT:
An electrostriction motor provided with an oscillator having an electrostriction element bonded to an elastic solid, and a moving solid contacted with the phase boundary of the elastic solid of the oscillator. The electrostriction element is continuously polarized in the moving direction of said moving solid to include a directly-expanded and -contracted pole to which a cycle voltage is applied, and dependently-expanded and -contracted poles which are positioned on right and left sides of the directly-expanded and -contracted pole, and it is also polarized in such a way that the directly-expanded and -contracted pole and one of the dependently-expanded and -contracted poles have the same polarity, while the remaining dependently-expanded and -contracted pole has a polarity different from that of the directly-expanded and -contracted pole. Therefore, the electrostriction motor can be driven by a cycle voltage having a single phase, and its supply power circuit and wiring can be made simpler accordingly.

REFERENCES:
patent: 4504760 (1985-03-01), Yamamoto
patent: 4645964 (1987-02-01), Hiramatsu
patent: 4658172 (1987-04-01), Izukawa
patent: 4678956 (1987-07-01), Izukawa
patent: 4692649 (1987-09-01), Izukawa

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