Vibration wave motor

Details Vibration wave motor Vibration wave motor

1989-05-03

1990-05-15

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

049260855

ABSTRACT:
A vibration wave motor which produces a relative movement between a vibrator and a member which is in contact with the vibrator via friction surfaces by means of a traveling vibration wave produced in the vibrator. In the motor, a friction surface of either one of the vibrator and frictional member is made of a material subjected to a hard alumite processing, and at least a friction surface of another one of the vibrator and frictional member is made of an ultrahard material consisting of a nickel-phosphorus-base alloy which contains at least one kind of material selected from the group consisting of silicon carbide, boron carbide, titanium boride and boron nitride.

REFERENCES:
patent: 4495432 (1985-01-01), Katsuma
patent: 4513219 (1985-04-01), Katsuma
patent: 4779018 (1988-10-01), Okuno et al.

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