Beta Stirling Engine Animation

http://www.stirlingengineforsale.com/ An animation showing how a Beta Stirling Engine works. The beta stirling engine has just one cylinder, within it are contained both the displacer and the power piston. The connecting rod for the displacer passes straight through the center of the power piston. The power piston connecting rod is slightly off center as a result of this, unfortunately this is not very visible in my animation, i should have made it more clear. This animation of a beta stirling engine shows