Vibration wave motor

Details Vibration wave motor Vibration wave motor

1983-11-16

1985-04-23

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310317, H01L 4108

Patent

active

045132194

ABSTRACT:
A pair of electro-strain element groups each having at least one polarized or non-polarized electro-strain element are arranged or polarized phase-differentially, and the electro-strain element groups are electrically insulated from each other and the electro-strain element groups and a vibrating member are also electrically insulated from each other. Pulse voltages of different phases derived from one DC power supply are applied to the respective electro-strain element groups, and a moving member press-contacted to the vibrating member is friction-driven by a travelling vibration wave generated in the vibrating member.

REFERENCES:
patent: 3389274 (1968-06-01), Robertson
patent: 3649856 (1972-03-01), O'Neill
patent: 4019073 (1977-04-01), Vishnevsky
patent: 4400641 (1983-08-01), Vishnevsky et al.

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