Rotative motor using a triangular piezoelectric element

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

1982-02-11

1983-08-16

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310367, 310330, H01L 4108

Patent

active

043993850

ABSTRACT:
A rotative motor includes a member mounted to rotate freely. A pair of triangular piezoelectric bimorph elements are excited from a source of alternating current so that free tip 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 closed loop path, imparting a rotary motion to the rotatable member.

REFERENCES:
patent: 2195417 (1940-04-01), Mason
patent: 3297889 (1967-01-01), Breskend
patent: 3781955 (1974-01-01), Lavrinenko et al.
patent: 4019073 (1977-04-01), Vishnevsky et al.
patent: 4339682 (1982-07-01), Toda et al.
Paper by G. Arlt et al., presented to "Electromechanical Design", published in Oct. 1972.

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