Rotary motor driven by a piezoelectric composite laminate

Details Rotary motor driven by a piezoelectric composite laminate Rotary motor driven by a piezoelectric composite laminate

1997-08-19

1999-08-24

LaBalle, Clayton

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310323, H01L 4104

Patent

active

059428384

ABSTRACT:
There is described a rotary motor in which a rotor disc is driven by a plate-like driving member comprising a laminate of piezoelectric material sandwiched between outer layers of anisotropic material. When a voltage is applied to the rotor disc the driving member expands into driving contact with the rotor disc and--at the same time--owing to the anisotropy of the outer layers, twists with a torsional movement and this torsional movement imparts a rotary movement to the rotor disc.

REFERENCES:
patent: 4349762 (1982-09-01), Kitamura et al.
patent: 4363993 (1982-12-01), Nishigaki et al.
patent: 4468583 (1984-08-01), Mori
patent: 5581143 (1996-12-01), Miura et al.

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