Electrical generator or motor structure – Dynamoelectric – Reciprocating
Patent
1990-10-11
1991-08-13
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Reciprocating
310 12, 310 17, 318118, H01L 4112
Patent
active
050398946
ABSTRACT:
The magnetostrictive rod of a linear motor is made of twinned single crys Terfenol-D having its crystalline axis aligned with the rod axis to produce non-uniform transverse magnetostriction during axial magnetostrictive elongation of the rod in response to a triggering magnetic field. Slide bearing forces applied through spring biased support plates are limited to flat surfaces formed on the rod perpendicular to a transverse axis along which the rod is magnetostrictively contracted.
REFERENCES:
patent: 2105479 (1938-01-01), Haynes
patent: 3304479 (1967-02-01), Kleesattel et al.
patent: 3419739 (1968-12-01), Clements
patent: 3439199 (1969-04-01), Bergstrand et al.
patent: 3634742 (1972-01-01), Edson
patent: 4017754 (1977-04-01), Jarrett et al.
patent: 4831290 (1989-05-01), Clauss et al.
patent: 4927334 (1990-05-01), Engdahl et al.
Clark Arthur E.
Teter Joseph P.
Shuster Jacob
Stephan Steven L.
The United States of America as represented by the Secretary of
To Edward H.
Walden Kenneth E.
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