Drive of nuclear reactor S control element

Details Drive of nuclear reactor S control element Drive of nuclear reactor S control element

1978-05-24

1980-12-09

Engle, Samuel W.

G21C 708

Patent

active

042382882

ABSTRACT:
According to the invention, the drive of a nuclear reactor's control element comprises an electromotor having a stator and a rotor composed lengthwise of two parts whose total length is equal to that of the active part of the stator. One part of the rotor is a solid cylinder-shaped member. The other part of the rotor comprises at least three double-arm rocking levers, the pivot axes of which are parallel to the axis of a drive screw. One arm of each of said levers is a rotor pole. The other arm of each of said levers carries a roller, the axis of rotation of which is parallel to the axis of the drive screw. Said rollers make up a detachable roller nut which interacts with the drive screw under the action of an electromagnetic field.

REFERENCES:
patent: 3215608 (1965-11-01), Guenther
patent: 3356874 (1967-12-01), Chiapparelli
patent: 3599498 (1971-08-01), Misenti
patent: 3627634 (1971-12-01), Guenther et al.
patent: 3714479 (1973-01-01), Moore et al.
patent: 3939039 (1976-02-01), Seki et al.
patent: 3992255 (1976-11-01), DeWesse

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