why electromagnets aren’t used in piston motors, including internal combustion or not including internal combustion

Question

Will pistons specifically in the cylinder ever use electromagnets to propel the piston and to spin the driveshaft like gasoline motors?

In: 1

Answer 1

There is no reason to have a piston if you’re not using internal combustion….the whole point of the piston / shaft is to turn the expanding products of combustion into rotational energy. The air gas mixture burns, expands, drives the piston up, and rotated the shaft.

In fact, having a piston going back and forth is very inefficient because you lose all of the momentum of the piston with every stroke.