Piezoelectric electric energy generator

Details Piezoelectric electric energy generator Piezoelectric electric energy generator

1995-03-13

1996-04-30

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 41113

Patent

active

055127959

ABSTRACT:
An electrical energy generator comprises a cylindrical stator, a cylindrical liner of a piezoelectric material in concentric contact with the stator, and an armature rotatable about the liner. In one embodiment, as the armature rotates, the armature squeezes successive portions of the liner against the stator for alternately compressing and decompressing the liner portions for causing them to generate electrical energy. In another embodiment, the armature causes alternating stretching and destretching of successive portions of the liner between spaced apart portions of the stator for causing the liner portions to generate electricity.

REFERENCES:
patent: 3101420 (1963-08-01), Huffard et al.
patent: 3208443 (1965-09-01), Hurwitz
patent: 3350583 (1967-10-01), Schiavane
patent: 3539841 (1970-11-01), Riff
patent: 4510935 (1985-04-01), Spencer
patent: 4853580 (1989-08-01), Sula

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