Abstract: A linear motion reciprocating pump having a cylindrical housing, a magnetically permeable plunger mounted for reciprocal motion in said housing, the plunger including an opening to permit the passage of fluid from one end of the housing through the plunger to the other end of the housing, a power coil mounted on one end of the housing for attracting the plunger toward the one end, a reset coil mounted on the other end of the housing for attracting the plunger toward the other end of the housing, an electrical circuit operatively connected to energize the coils, the circuit including means for alternately controlling the enerization of the coils in phase to reciprocate said plunger in the housing whereby the voltage across the energized coil crosses through zero causing the plunger to be expelled from the energized coil just prior to energization of the other coil.