| aero engine | auxiliary power unit (APU) |
| beam engine | diesel engine |
| donkey engine | double-acting engine |
| dynamo | electric motor |
| external-combustion engine | flat-four engine |
| flathead engine | four-stroke (engine) |
| gas turbine | generator |
| heat engine | hyperdrive |
| inboard | internal-combustion engine (ICE) |
| ion engine | jato |
| jet engine | linear motor |
| magneto | oil engine |
| outboard | Otto engine |
| petrol engine | piston engine |
| prop jet | pulse jet |
| radial engine | ramjet |
| rebore | reciprocating engine |
| rocket engine | rotary engine |
| scramjet | stationary engine |
| steam engine | steam turbine |
| sterndrive | Stirling engine |
| straight-eight | straight-six |
| thruster | triple expansion engine |
| turbine | turbo diesel |
| turbofan | turbogenerator |
| turbojet | turboprop |
| turboshaft | twin-cam engine |
| two-stroke (engine) | ullage rocket |
| V engine | Wankel engine |