The following engines have their operations animated: Enjoy, and please seed.

Internal combustion

* Four stroke
* Diesel
* Two stroke
* Wankel
* Atkinson
* Gnome Rotary
* Jet Propulsion

Steam

* Locomotive
* Oscillating
* CO2
* Coomber
* Crank Substitute
* Revolving Cylinder
* Watt Beam
* Grasshopper Beam
* Unknown Beam
* Newcomen

Stirling

* Two Cylinder
* Single Cylinder
* Ross Yoke
* Low Temperature