Ultrasonic motor with a friction component

Details Ultrasonic motor with a friction component Ultrasonic motor with a friction component

1992-05-27

1993-09-14

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

052452433

ABSTRACT:
In the ultrasonic motor according to the present invention, a carbon fiber reinforced plastic whose carbon fibers are arranged in one direction is used for a friction member applied to a sliding surface of a stator or rotor; Vickers hardness is Hv550 or more; and a sliding surface of the rotor or stator in sliding relationship with the friction member has surface roughness of Ra=0.03 .mu.m or less.

REFERENCES:
patent: 4663556 (1987-05-01), Kumada
patent: 4884002 (1989-11-01), Eusemann et al.
patent: 4926085 (1990-05-01), Sawayama et al.
patent: 4963781 (1990-10-01), Sumihara et al.
patent: 5013956 (1991-05-01), Kurozumi et al.
patent: 5034646 (1991-07-01), Shirasaki
patent: 5059849 (1991-10-01), Sumihara et al.
patent: 5122700 (1992-06-01), Tamai et al.
patent: 5148075 (1992-09-01), Shirasaki

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