Switched reluctance linear motor/generator

H - Electricity – 02 – K

Patent

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Details

H02K 41/03 (2006.01) H02K 16/00 (2006.01)

Patent

CA 2669387

The invention consists on a linear switched reluctance electrical machine that may be operated indistinctly as a generator or a motor, with a series of characteristics that allow the optimization of the mass to power ratio, as well as the manufacturing cost. The machine has several air gaps, crossed by a single magnetic flux, in which the magnetic force is obtained. This flux is fed by a set of coils (6) placed in the active parts, these active parts are two yokes (4) and (5) in which the magnetic flux closes, there might be other active parts in the mentioned magnetic circuit through which the magnetic flux does not close. A set of passive elements, normally the translators (1) and (2), produce, while moving relatively to the active part, a variation of the reluctance of the circuit with respect to the position which causes a magnetic force. The most unique characteristic of the present invention is that the magnetic flux only returns through the two butt active parts (4-5), allowing the desired reduction in mass, weight and cost.

La présente invention concerne une machine électrique à réluctance commutée linéaire qui peut être utilisée indistinctement en tant que générateur ou moteur, avec une série de caractéristiques qui permettent l'optimisation du rapport masse/puissance, ainsi que du coût de fabrication. La machine comporte plusieurs entrefers, traversés par un flux magnétique unique, dans lesquels la force magnétique est obtenue. Ce flux est distribué par un ensemble de bobines (6) placées dans les parties actives, ces parties actives sont deux culasses (4) et (5) dans lesquelles le flux magnétique se ferme. Il peut y avoir d'autres parties actives dans le circuit magnétique mentionné à travers lesquelles le flux magnétique ne se ferme pas. Un ensemble d'éléments passifs, normalement les translateurs (1) et (2), produisent, tout en se déplaçant par rapport à la partie active, une variation de la réluctance du circuit par rapport à la position qui entraîne une force magnétique. la caractéristique la plus unique de la présente invention est que le flux magnétique retourne seulement à travers les deux parties actives de base (4-5), permettant la réduction souhaitée de la masse, du poids et du coût.

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