We were recently asked “What’s the difference between an engine and a motor?”  Although it seemed at the time like a simple question, we thought we’d address it quickly here.  The following are WordNet definitions:

  • motor is a machine that converts other forms of energy into mechanical energy and so imparts motion.
  • An engine is a motor that converts thermal energy to mechanical work.

It’s a matter of semantics.  Just as all squares are rectangles, all engines are motors.  Granted, an engine is a specific type of motor, one that converts thermal energy, so if there’s no combustion, there’s no engine, but not all motors are engines.

Make sense or need more?  Give us a call – Fluid Tech can supply either for your specific needs.