Magnetostrictive brake

Details Magnetostrictive brake Magnetostrictive brake

1997-01-28

1998-10-27

Oberleitner, Robert J.

Brakes

Operators

Electric

188 721, B60L 700, F16D 5508

Patent

active

058266836

ABSTRACT:
A magnetostrictive brake is provided with an electrically-driven actuator for moving friction materials back and forth toward a rotary member by utilizing a magnetostrictive element which extends and contracts by means of magnetostriction, a fluid-type displacement enlarging mechanism which is provided between the magnetostrictive element and the friction materials and used for enlarging the displacement of the magnetostrictive element and transmitting the enlarged displacement to the friction materials, and bias magnetic field applying means for applying a bias magnetic field to the magnetostrictive element.

REFERENCES:
patent: 4629039 (1986-12-01), Imoto et al.
patent: 4705323 (1987-11-01), Imoto et al.
patent: 4765140 (1988-08-01), Imoto et al.
patent: 5000295 (1991-03-01), Fargier
patent: 5645143 (1997-07-01), Mohr et al.

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