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AssigneeCentre National De La Recherche Scientifique
InventorsChristian Rioux, Roger Guillet, Jean Lucidarme, Jean Roche, Jean Pouillange
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A polyphase variable reluctance electric motor is provided which may be of the linear or rotary type. It has a stator with m windings (34, 36, 38) creating a magnetic flux in the direction of movement of the mobile core and a source (40, 42) for energizing the windings with a differential phase shift, each winding being associated with its own ferromagnetic circuit completed through the core, characterized in that the core has several ferromagnetic first blades (18) parallel to the direction of movement and each split up in the longitudinal direction into first studs (20) having a given pitch p and in that the ferromagnetic circuit of each winding includes interleaved second blades alternating with those of the core and split up into second studs (14) at the same pitch p.
A polyphase variable reluctance linear electric motor comprising a ferromagnetic mobile core movable in a first direction and having a plurality of first sections extending parallel to said first direction, each of said first sections being divided into a plurality of ferromagnetic portions spaced from each other in said first direction by a predetermined pitch p, a stator within which the mobile core is movable, comprising a plurality of m windings arranged for respectively and separately creating, when energized, a magnetic flux having magnetic lines extending through the mobile core in said first direction, and a plurality of second sections arranged to be alternatively disposed between said first sections and extending between said first sections in a second direction perpendicular to the first direction, said second sections being divided into a plurality of ferromagnetic segments spaced from each other in said first direction by said predetermined pitch p, and electric power source means for energizing the windings with respective phase shifted currents.
Dependencies are inferred from the claim text.