Double-Cylinder Steam Engine

A 3D model of a twin-cylinder steam engine designed with Autodesk Inventor 2012, sharing drawings in stp, igs, and ipt, iam source file formats.
The steam engine has a tubular liquid container, with heating and cooling devices separately installed in the heating and cooling parts of the liquid container, while the output device is connected to the liquid container so that the output device operates through the liquid pressure changes in the liquid container to generate electricity.