Ultrasonic motor

Details Ultrasonic motor Ultrasonic motor

1991-10-04

1992-12-15

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

051720230

ABSTRACT:
An ultrasonic motor which has a viration mode of progressive wave with a large vibrational amplitude of an elastic member and which provides a high torque, comprises: at least one vibrator including a disk-shaped elastic member having a driving force transmitting portion, disk-shaped piezoelectric ceramics attached to both surfaces of the elastic member and a plurality of projections provided on both sides of the driving force transmitting portion; and at least one rotor that is in press contact with the driving force transmitting portion of the vibrator. The thickness of the elastic member at a portion between the piezoelectric ceramics is substantially equal to the thickness thereof at the driving force transmitting portion.

REFERENCES:
patent: 4645964 (1987-02-01), Hiramatsu et al.
patent: 5032754 (1991-07-01), Iwao et al.
Applied Physics 54 (1985) No. 6, pp. 589-590.

Affiliated with

Also associated with

Rating

Ultrasonic motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ultrasonic motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasonic motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2095649