Vibration wave motor

Details Vibration wave motor Vibration wave motor

1991-02-13

1992-09-08

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310328, H01L 4108

Patent

active

051461293

ABSTRACT:
A motor has at least a vibration rod parallel to the axis of a rotor, in which the vibration rod causes a rotary motion in the rotor. The motor is free from the annular stator showing a large attenuation of vibration and is not associated with the stator support. The motor is also provided with a higher efficiency of energy utilization in comparison with a conventional ultrasonic motor, and is free from the stopping or irregular rotation of the rotor. The vibration rod for rotating the rotor requires a smaller space in comparison with the annular stator in the conventional ultrasonic motor.

REFERENCES:
patent: 3211931 (1965-10-01), Tehon
patent: 4339682 (1982-07-01), Toda et al.
patent: 4399386 (1983-08-01), Osaka et al.
patent: 4400641 (1983-08-01), Vishnevsky et al.
patent: 4613782 (1986-09-01), Mori et al.
patent: 4705980 (1987-11-01), Mishiro
patent: 4742260 (1988-05-01), Shimizu et al.
patent: 4763776 (1988-08-01), Okumura et al.
patent: 4893045 (1990-01-01), Honda

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