Rotative motor using a piezoelectric element

Details Rotative motor using a piezoelectric element Rotative motor using a piezoelectric element

1980-09-22

1982-07-13

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310317, 310328, 310332, H01L 4108

Patent

active

043396828

ABSTRACT:
A rotative motor includes a member mounted to rotate freely. A pair of piezoelectric bimorph elements are excited from a source of alternating current so that free ends of the respective elements vibrate ninety degrees out of phase. The central point of an elastic member connected between the free ends of the elements is in frictional contact with the rotatable member. The central point exhibits a physical displacement circular in shape, imparting a rotary motion to the rotatable member.

REFERENCES:
patent: 3297889 (1967-01-01), Breskeno
patent: 3781955 (1974-01-01), Lavrinenko et al.
patent: 4019073 (1977-04-01), Vishnevsky et al.
Piezo-Electric Synchronous Motor: Simple Clock Drive, by Arlt et al., Electromechanical Design, Oct. 1972, pp. 22-27.

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