Linear electromagnetic induction machine with an optimised magnetic-flux distribution and application.

摘要

The electromagnetic machine (1) includes a tubular duct (3) intended to accommodate a conducting material capable of flowing in the duct (3) around the core (4) and an inductor (2) arranged coaxially around the duct (3). The inductor (2) includes a magnetic circuit (15) formed by combs (18) made of laminated sheets and by windings (14) arranged in annular notches (5) formed in the magnetic circuit (15). The notches (5) are separated from one another by teeth (12). The teeth (12) of the inductor (2) have lengths in the axial direction which are smaller in the central part (2a) of the inductor (2) than in the end parts (2b, 2c). The notches (5) have shallower depths at the ends (2b, 2c) than in the central part (2a) and enclose windings (14) having a smaller number of turns. The windings (14) are each linked to one phase of a multi-phase current source. <IMAGE>