FIELD: electromechanics; short-run dc plunger electromagnets.
SUBSTANCE: proposed dc electromagnet has plunger, insulated-wire coil, casing, and fixed core. Novelty is that butt-end surfaces of both plunger and fixed core are made in the form of convex truncated conical surfaces, where ratio of truncated-cone upper diameter dup to plunger diameter d is 0.7 ≤ dup/d < 1.
EFFECT: enhanced speed at same size and mass.
1 cl, 1 dwg
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