Published March 28, 1986 | Version v1
Patent Metadata-only

Electromagnet with two coils separated by magnetic wall

Creators

Description

The electromagnet comprises a magnetic core with a magnetic wall fixed to it separating two coaxial coils, a casing surrounding the coils and magnetically coupled to the wall, and a carrying face at the end of the casing, arranged so that the carrying force exerted by energising one of the coils is less than that exerted by energising the other. The invention applies for holding nuclear reactor control rods. The force exerted on a control rod can be varied with its position

Availability note (English)

Available from Institut National de la Propriete Industrielle, Paris (France).

Abstract (French)

Il comprend un noyau fait d'un materiau magnetique, une carcasse dont l'extremite forme une face portante pour l'electro-aimant, deux bobines entourant le noyau, et une paroi faite d'un materiau magnetique, separant les deux bobines, fixee au noyau et magnetiquement couplee a la carcasse de maniere a detourner une partie du flux magnetique lorsque la seconde bobine est excitee. L'electro-aimant peut ainsi presenter un palier de force portante correspondant a au moins la premiere bobine et un autre palier, inferieur au premier et correspondant a la seconde bobine. L'invention s'applique au maintien de barres absorbantes dans les reacteurs nucleaires. La force appliquee sur l'element de controle peut varier en fonction de sa position

Additional details

Additional titles

Original title (French)
Electro-aimant a differents paliers de force portante

Publishing Information

Imprint Pagination
13 p.
IPC:
Int. Cl.: H01f7/06; G21c7/12.
IPC
Int. Cl.: H01f7/06; G21c7/12.
Patent number
FR patent document 2570866/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
18032573
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
CONTROL ELEMENTS; ELECTROMAGNETS; FASTENING; SPECIFICATIONS
Descriptors DEC
ELECTRICAL EQUIPMENT; EQUIPMENT; FABRICATION; JOINING; MAGNETS; REACTOR COMPONENTS

Optional Information

Secondary number(s)
FR patent application 8414596.