Linear motor

Electric motor that produces a linear force

A linear motor is an electric motor that has had its stator and rotor "unrolled", thus it produces a linear force along its length, rather than a rotational force (torque). However, linear motors are not necessarily straight. Characteristically, a linear motor's active section has ends, whereas more conventional motors are arranged as a continuous loop.

From Wikipedia, under CC BY-SA. More on occurri.