Push-and-pull electromagnet with coaxial DC windings - within which permanently magnetised iron@ or alloy core adopts position w.r.t. magnetic implosion and explosion points

摘要

A permanent magnet (P) moves along the common axis of two solenoids (S) supplied with direct current at the same time. Mechanical force in the direction of movement (D1) is increased with one end of the magnet (P) at the implosion point (I) of one winding when the other end is at the explosion point (E) of the other winding. The centre of mass (B1) of the magnet (P) moves to the geometric midpoint (S1) of the solenoid. ADVANTAGE - Higher mechanical force or acceleration is achieved with greater range or speed of travel by a simple, compact and lightwt. structure.