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

Friction. The design of “traditional” electric motors is way more efficient than a piston and crankshaft arrangement like in an internal combustion motor. That design has a LOT of extra friction, necessary because of how internal combustion (ignoring turbine and rotary…) engines function.